Blog - Air Comfort Heating & Air Conditioning
DIY Heating Troubleshooting: What Minnesota Homeowners Can Safely Check Themselves
When the temps drop and your heat won’t kick in, panic sets in fast. But before you call for service, there are a few safe, simple things you can check yourself—especially if you’re the DIY type.
This guide walks Minnesota homeowners through easy, at-home steps for troubleshooting your heating system. Whether it’s a furnace, thermostat, or boiler issue, sometimes the fix is easier than you think.
1. How to Reset Your FurnaceIf your furnace suddenly shuts off or won’t start:
Locate the power switch (it looks like a light switch) on or near the unit. Flip it off, wait 30 seconds, and turn it back on.
Check your circuit breaker to make sure it hasn’t tripped.
Some models have a reset button on the blower motor or control board—press it once and wait.
If it still doesn’t run, it’s time to call a pro.
2. How to Check and Change Your Furnace FilterA clogged filter can shut down your system or make it blow cold air.
Locate the filter slot (typically near the blower or intake).
Slide the filter out and inspect it—if it’s gray, dusty, or more than 3 months old, replace it.
Always match the size and airflow direction printed on the old one.
Pro tip: In Minnesota’s long heating season, check filters monthly.
3. What to Do When Your Thermostat Isn’t RespondingIf your system isn’t turning on:
Make sure the thermostat is set to HEAT and the temp is above current room temp.
Replace the batteries (most digital thermostats need new ones annually).
Check for a tripped breaker on the HVAC circuit.
Try gently cleaning dust from around the thermostat sensors.
Still blank or not clicking on? It might be a wiring issue or a faulty unit.
4. Relighting a Furnace Pilot Light (For Older Models)Note: This only applies to older, standing-pilot systems. Many modern units have electronic ignition.
Turn the gas knob to OFF and wait 5–10 minutes.
Turn to PILOT, press and hold it down, and use a long lighter to ignite the pilot.
Once the flame stays lit, turn the knob to ON.
If the flame won’t stay lit or you smell gas--stop and call a professional immediately.
5. Checking Boiler Pressure (For Homes With Radiant Heat)
Look at the pressure gauge—it should typically read between 1–2 bars (15–30 psi).
If it’s too low, you may need to top off the system using the fill valve (only if you're comfortable and know the system).
If pressure is too high or fluctuating, call a pro. Don’t open the system while it’s hot.
Still No Heat? Call in BackupIf you’ve checked the basics and your home’s still freezing, don’t wait—especially in Minnesota winters. A no-heat emergency can go from uncomfortable to unsafe fast.
Whether you’re in Anoka, Blaine, or beyond, our team is ready to help get your heat back on, fast.
Need emergency HVAC help? Contact us 24/7—we’re here when your furnace isn’t.
HVAC Installation Near Me: What Central Minnesota Homeowners Need to Know
When you're searching for "HVAC installation near me," you're not just looking for a contractor—you’re looking for comfort, reliability, and peace of mind. For homeowners in central Minnesota, where winter bites and summer swelters, a well-installed HVAC system isn’t a luxury—it’s a necessity.
Here’s what to know before, during, and after an HVAC install, plus why choosing a local, trusted installer can make all the difference.
🔍 What to Look for in a Local HVAC Installer
1. Experience with Minnesota Climates
From Anoka to Eden Prairie, HVAC systems need to handle extreme cold and sudden weather shifts. Look for installers who understand high-efficiency furnace and heat pump setups suited for our region.
2. Licensed, Bonded, and Insured
Protect your home and wallet by choosing certified professionals who meet Minnesota code requirements and carry full insurance.
3. Community Reputation
Check Google reviews, local Chamber of Commerce membership, and neighborhood Facebook groups. A good reputation is earned with consistent, quality service.
4. Transparent Quotes & Options
A trustworthy contractor won’t just throw a price at you—they’ll walk you through system options, rebate eligibility (Xcel, CenterPoint, etc.), and long-term energy savings.
🛠️ The HVAC Installation Process in Central MN
Here’s how a typical HVAC install looks when you go with a reliable local company:
In-Home Assessment
We evaluate your current system, insulation, home layout, and comfort goals.Custom Recommendations
Based on square footage, energy use, and budget, we’ll suggest the right furnace, AC, or heat pump setup for your home.Scheduling & Permits
We handle scheduling, permitting, and utility rebate paperwork so you don’t have to.Installation Day
Our certified techs install the system safely, cleanly, and efficiently—usually in one day.Walkthrough & Comfort Calibration
We’ll test every setting, explain your new thermostat, and make sure you know how to get the most from your system.
🏡 Why Local Matters
Hiring a team that lives and works in central Minnesota means you’re getting techs who know the climate, understand local rebates, and actually pick up the phone when you call.
Whether you’re in Zimmerman, Coon Rapids, Anoka, Edina, Elk River, or anywhere in between—our team is here to make your home comfortable, efficient, and ready for any season.
📞 Ready for an HVAC Upgrade?
Stop Googling “HVAC installation near me” and start talking to real pros who care about your home. Contact us today for a no-pressure quote and discover the difference a local HVAC partner can make.
Furnace Repair in Anoka, MN: How to Spot Trouble Before It Starts
Anoka winters aren’t exactly gentle. When the temps dip below zero and the wind picks up off the Mississippi, your furnace becomes the unsung hero of the household. But what happens when that hero starts to falter?
If your furnace is making strange noises or struggling to heat your home evenly, it may be waving a red flag. And catching those signs early can make the difference between a simple fix and a total system breakdown.
🚩 Warning Signs Your Furnace Needs Attention
1. Odd Noises
Banging, clanging, rattling—or anything louder than a soft hum—is your furnace's way of saying, “Help!” These sounds can point to loose components, ignition issues, or even worn-out bearings.
2. Inconsistent Heating
Are some rooms cozy while others feel like the inside of a hockey rink? That uneven heating could indicate duct issues, thermostat problems, or a failing blower motor.
3. Short Cycling
If your furnace keeps turning on and off every few minutes, it’s not just annoying—it’s inefficient. Short cycling could mean a dirty filter, overheating issue, or a malfunctioning thermostat.
4. Higher Energy Bills
Notice your energy bill creeping up even though your home doesn’t feel any warmer? An inefficient or struggling furnace can guzzle more power than necessary.
5. The Thermostat Tug-of-War
If you’re constantly adjusting the thermostat to stay comfortable, it may not be your thermostat’s fault—it could be your furnace falling behind.
Why Quick Furnace Repair Matters in Anoka
In Minnesota, winter doesn’t politely wait for your schedule. A failing furnace during a January cold snap is more than uncomfortable—it’s a safety risk. Calling for service early keeps small issues from turning into major (and expensive) emergencies.
And remember: a well-maintained furnace doesn’t just last longer—it performs better, keeping your home evenly warm and your bills manageable.
What to Expect from a Furnace Repair Visit
Thorough inspection of all components (blower motor, burners, filters, thermostat)
Testing for airflow, ignition performance, and heat output
Diagnostics and recommendations tailored to your system’s age and condition
Upfront pricing before any repairs begin
🌬️ Keep Your Home Cozy—Without SurprisesDon’t wait for your furnace to quit on the coldest night of the year. If you’re in Anoka or nearby, call our team for a seasonal check-up or a fast repair. We’ll make sure your heat keeps flowing—quietly, efficiently, and safely.
Need help fast? Contact us today and stay ahead of the next cold snap!
Cost Analysis: Heating in Minnesota — Fuel Types, Utility Trends, & Energy-Saving Tips
When it comes to Minnesota winters, heating your home isn’t optional — it’s survival. But with shifting energy prices and new technology hitting the market, homeowners are asking a familiar question every fall:
👉 “What’s the most affordable way to keep my home warm this winter?”
At Air Comfort Heating & Air Conditioning, we help families across Anoka County and the Twin Cities find that balance between comfort and cost. Let’s break down what’s really driving heating expenses in Minnesota right now — and how you can stay warm without breaking the bank.
1. Comparing the Cost of Common Heating Options
Most Minnesota homes still rely on natural gas furnaces, which remain the most cost-effective for the average household. Gas furnaces are efficient, reliable, and supported by stable utility rates.
However, more homeowners are starting to explore alternatives like cold-climate heat pumps, which use electricity to transfer heat instead of generating it. When outdoor temperatures are mild, a heat pump can be cheaper to run than natural gas — especially with utility incentives and rebates.
Electric furnaces and baseboard heating systems are simple but expensive to operate through a full Minnesota winter, while propane and heating oil systems are still common in rural areas where natural gas isn’t available. Unfortunately, those fuels fluctuate in price and can be costly to refill during cold snaps.
2. Utility Trends for the 2025 Heating Season
Utility companies in Minnesota are encouraging homeowners to switch to high-efficiency or electric-based systems through rebates and rate programs.
Xcel Energy and CenterPoint Energy both offer rebates up to $2,500 for installing qualifying furnaces or heat pumps.
The state’s Energy Efficiency Resource Standard continues to push incentives for reducing carbon output and improving HVAC performance.
Electricity prices are stabilizing for off-peak hours, meaning systems that can run efficiently at night — like heat pumps or dual-fuel setups — can save even more.
Natural gas prices, meanwhile, are expected to remain relatively steady, though slight rate increases are likely in late 2025 as utilities invest in infrastructure updates.
3. Efficiency: The True Cost Difference
Fuel type plays a big role in cost, but efficiency is the real key to savings.
Older furnaces might only convert 70 to 80 percent of their fuel into usable heat. New, high-efficiency models can reach 95 to 98 percent efficiency, meaning nearly every dollar you spend goes toward heating your home.
For electric systems and heat pumps, the efficiency metric to look for is HSPF2 (Heating Seasonal Performance Factor). A higher HSPF2 rating means better energy use — and for cold-climate models designed for Minnesota, that difference can save hundreds over a single heating season.
4. Energy-Saving Habits That Make a Big Difference
Even with the best equipment, how you use your system matters.
Here are simple ways to reduce heating costs without sacrificing comfort:
Schedule fall HVAC maintenance to ensure everything runs efficiently before the deep freeze.
Replace or clean filters every 30–60 days. Restricted airflow means wasted energy.
Seal leaks and insulate windows, doors, and attics to keep heat inside where it belongs.
Use a programmable thermostat to lower the temperature while you’re asleep or away.
Maintain indoor humidity between 40–50 percent — it helps your home feel warmer at lower temps.
5. Choosing the Right System for Your Minnesota Home
Every home’s heating needs are different — square footage, insulation, and usage all matter. At Air Comfort, we don’t just install systems; we evaluate your entire comfort setup. Whether you’re running an older gas furnace or exploring a dual-fuel heat pump, we’ll help you find the most efficient and cost-effective solution for your space and budget.
Our team specializes in systems designed for Minnesota winters — the kind that can handle a -20° morning and still deliver steady, reliable comfort.
📞 Call (763) 753-6623 to schedule your fall heating consultation and stay ahead of the cold.
Why Your Heat Pump May Be Running “Cool Mode” in Late Fall
If you’ve stepped inside your Minnesota home on a chilly October morning and thought, “Wait… why is the air cold?” — you’re not alone.
Every fall, as the seasons swing back and forth between 40°F mornings and 70°F afternoons, heat pumps get caught in the confusion. You might think something’s wrong, but in most cases, your system is doing exactly what it’s designed to do.
1. Understanding How Heat Pumps Work
Unlike traditional furnaces, a heat pump doesn’t generate heat — it transfers it.
It pulls heat from outside air (yes, even cold air) and moves it indoors to warm your home. In cooling mode, it does the opposite, transferring heat from inside to outside.
That’s great for energy efficiency — but it also means that during mild fall temperatures, your heat pump can seem to “flip-flop” between modes.
2. Why It Feels Like “Cool Mode” in Late Fall
Minnesota’s transitional weather can trick your thermostat. Here’s why your heat pump might still blow cool air even as you’re ready for heat:
Temperature swings: When daytime temps rise above your thermostat setting, the system naturally switches to cooling mode.
Defrost cycles: On colder mornings, the outdoor unit occasionally runs in reverse to melt frost — blowing cool air inside temporarily.
Thermostat lag: If your system hasn’t been switched to “heat” manually (or auto mode is active), it may default to cooling during warmer afternoons.
None of these situations mean your system is broken — but they do mean it’s adapting to unpredictable Minnesota weather.
3. When to Be Concerned
If your heat pump continues blowing cold air without warming back up after a few minutes, it might signal:
Low refrigerant levels (caused by leaks or improper charge)
Malfunctioning reversing valve (stuck in cooling mode)
Sensor or control board issues
Outdoor coil freeze or airflow restriction
These problems won’t fix themselves — and ignoring them can lead to compressor damage or higher energy bills.
4. What You Can Do First
Before calling a pro, try a quick checklist:
✅ Confirm thermostat is set to “heat” and fan is on “auto.”
✅ Check and replace a dirty filter — restricted airflow causes temperature issues.
✅ Inspect outdoor coils for frost, leaves, or debris.
✅ Wait through a defrost cycle; the air should warm again afterward.
If it’s still not heating properly, it’s time for a service visit.
5. Why Heat Pumps Still Shine in Minnesota
Modern heat pumps — especially cold-climate models — perform exceptionally well in Minnesota when installed and maintained properly. Paired with a dual-fuel system, they automatically switch to a gas furnace when temps drop too low, delivering year-round comfort and efficiency.
If your system is acting confused, a professional tune-up can recalibrate sensors, optimize refrigerant levels, and ensure your setup is ready for full-time heating season.
How “Heating Demand Spikes” in October and November Impact HVAC Calls in Minnesota
Every fall in Minnesota, there’s a moment that feels almost predictable:
The first frost hits, the thermostat dips into the 40s, and suddenly—everyone across the state turns on their heat at the same time.
And that’s when the calls start flooding in.
Furnaces that haven’t run since spring refuse to fire up. Heat pumps flash error codes. Filters are clogged, blowers squeal, and thermostats stop cooperating. It’s what the HVAC industry calls a heating demand spike—and it happens every October and November without fail.
Why Heating Demand Spikes Happen
Minnesota weather doesn’t ease into fall—it dives headfirst. Temperatures can drop 30 degrees overnight, and when they do, every household system comes back to life simultaneously after months of dormancy.
That sudden demand does two things:
Overloads old systems. Dust buildup, worn parts, or weak igniters show their age when the first big cold front rolls in.
Overwhelms HVAC schedules. Thousands of homeowners realize they need help—usually all within the same week.
It’s like trying to schedule a snowplow after the first blizzard.
The Hidden Strain on Minnesota Furnaces
When a furnace sits idle through the humid Minnesota summer, internal components—like ignition systems, burners, and blower motors—can corrode or seize up.
The first ignition cycle of the season is when those weaknesses reveal themselves.
Common early-season failures include:
Faulty igniters or flame sensors
Clogged filters or blocked air returns
Dirty burners or heat exchangers
Malfunctioning thermostats
Add in neglected tune-ups, and those “minor issues” quickly become “no-heat emergencies.”
Why It Pays to Schedule Early
Every year, homeowners who schedule their fall maintenance in September avoid the chaos entirely. By the time everyone else’s furnace quits on a cold November morning, their systems are already tuned, tested, and ready.
Booking early helps:
✅ Prevent emergency breakdowns
✅ Extend equipment life
✅ Reduce repair costs
✅ Guarantee faster service times
At Air Comfort, our phones ring nonstop once the first overnight freeze hits—but our early tune-up customers? They’re already cozy.
What Homeowners Can Do Before Calling
If your furnace hesitates when you turn it on this fall, try these quick steps before panic sets in:
Change the filter. A clogged filter can stop a system from igniting.
Check the thermostat. Replace batteries and ensure it’s set to “heat.”
Inspect the vent intake. Clear leaves, snow, or debris from exterior vents.
Listen. Clicking, humming, or constant cycling are warning signs—call before it quits completely.
The Air Comfort MN Advantage
We’ve been through more Minnesota heating seasons than we can count—and we know the pattern well. When that first cold wave hits, we’re ready for the surge.
Our Anoka-based team offers:
Preventive maintenance before demand spikes hit
Emergency service when your heat quits unexpectedly
Straightforward communication (no upsell nonsense—just solutions)
Why Local Licensing, Permits & Codes Matter for HVAC in Minnesota
If there’s one thing every Minnesota homeowner should know before installing or replacing an HVAC system, it’s this: not all heating and cooling work is created equal — or legal.
Whether you’re adding a new furnace, replacing an air conditioner, or upgrading to a high-efficiency heat pump, permits, licensing, and local codes protect your home, your safety, and your investment. And in a state with subzero winters and humid summers like ours, that protection matters.
1. Why HVAC Licensing Matters
Minnesota HVAC licensing isn’t just paperwork — it’s proof of competence and accountability.
Licensed contractors are trained, tested, and verified by the Minnesota Department of Labor and Industry (DLI) to meet strict safety and performance standards.
Hiring a licensed HVAC professional ensures:
Your installation meets state and local codes.
The technician is insured and bonded for liability.
Your warranty and homeowner’s insurance remain valid.
Unlicensed work can void equipment warranties and even cause fines or property sale complications later on.
2. The Role of Permits in HVAC Projects
Before any furnace, AC, or heat pump install in Minnesota, your contractor should file for a mechanical permit with your city or county.
Why this matters:
Safety first: Inspectors verify the system meets code and won’t pose fire, gas, or ventilation hazards.
Efficiency compliance: Many cities follow Minnesota Energy Code standards, ensuring your equipment performs at peak efficiency.
Peace of mind: A permitted job means your installation was inspected and approved — something that matters when selling or refinancing your home.
If your HVAC company tells you a permit isn’t necessary — that’s your cue to find a new one.
3. How Local Codes Protect Minnesota Homes
Minnesota’s mechanical and energy codes are built around our state’s unique climate challenges.
From frost-depth venting and combustion air requirements to insulation and duct sealing, these codes ensure your system can handle:
Extreme cold without freezing condensate lines.
Proper airflow in tightly sealed, energy-efficient homes.
Safe exhaust of gases in snow or ice conditions.
Ignoring these details can lead to dangerous carbon monoxide leaks, premature system failures, or drastically higher utility bills.
4. Homeowners: Your Role in Code Compliance
Even though contractors handle the permits, homeowners are responsible for making sure the work being done is legal and compliant.
Before signing any contract, always ask:
✅ Are you licensed and insured in Minnesota?
✅ Will you be pulling the required permits for this job?
✅ Will I receive proof of inspection after the work is complete?
An honest HVAC company will answer confidently — and provide documentation upfront.
5. The Air Comfort MN Promise
At Air Comfort Heating & Air Conditioning, every project we take on is done by the book and with integrity.
We’re fully licensed, insured, and locally trusted to install, maintain, and service HVAC systems that meet or exceed Minnesota mechanical and energy codes.
Whether it’s a new furnace in Anoka or a heat pump retrofit in Spring Lake Park, our team handles the details — permits, inspections, safety checks, and everything in between — so you don’t have to.
The Importance of Carbon Monoxide Testing with Furnace Use in Minnesota Homes
As Minnesota temperatures drop and furnaces roar back to life, one invisible danger deserves every homeowner’s attention — carbon monoxide (CO). It’s colorless, odorless, and deadly — and every fall, cases of CO leaks spike across the state as heating systems kick on after months of dormancy.
Why Carbon Monoxide Testing Matters
Carbon monoxide is produced anytime fuel burns — natural gas, propane, oil, or wood. When your furnace is properly vented and maintained, CO is safely expelled outside.
But even a small crack in a heat exchanger, a blocked vent, or poor combustion can leak CO directly into your living space.
According to the Minnesota Department of Health, hundreds of residents experience CO poisoning each year — most often in fall and winter. The signs can start subtle:
Dull headaches
Dizziness
Nausea
Shortness of breath
And because symptoms mimic the flu, many people don’t realize what’s happening until it’s serious.
How Often Should You Test for Carbon Monoxide?
CO testing should be part of your annual furnace inspection — ideally before the first long stretch of heating season. A professional HVAC technician uses calibrated instruments to measure CO levels and inspect components that could cause leaks, including:
Heat exchangers
Burners and pilot assemblies
Flue and vent systems
Draft inducers and exhaust fans
Even if your furnace is newer, yearly testing ensures that small issues don’t grow into major hazards.
Do Carbon Monoxide Detectors Replace Professional Testing? Short answer: no — they complement it.
A CO detector alerts you to a leak, but it doesn’t prevent one. Think of detectors like smoke alarms: essential, but reactive. To truly protect your home, pair your detector system with proactive HVAC maintenance and CO testing each fall. Minnesota law requires CO detectors in every home with fuel-burning appliances or attached garages — ideally placed near sleeping areas and each floor level.
Common Causes of Carbon Monoxide Leaks in Furnaces
Cracked heat exchanger – Often due to age or corrosion.
Blocked exhaust or vent pipe – Caused by leaves, snow, or ice.
Incomplete combustion – Dirty burners or incorrect air/fuel mixture.
Improper installation – Incorrect venting angles or undersized flue pipes.
Even the best equipment can fail if not maintained — which is why professional inspection is critical before Minnesota’s first deep freeze.
The Air Comfort MN Difference
At Air Comfort Heating & Air Conditioning, safety isn’t an afterthought — it’s the foundation of what we do.
Our certified technicians perform comprehensive CO testing and furnace safety checks for families across Anoka County and beyond. We ensure your system runs cleanly, efficiently, and safely — all season long.
📞 Call (763) 753-6623 to schedule your furnace safety inspection before winter settles in.
When to Switch from Cooling to Heating in Minnesota Homes (and How to Do It Right)
The calendar might say fall, but if you’ve lived in Minnesota long enough, you know that the weather plays by its own rules. One week it’s sunny and 75°F, the next it’s frost on the windows and a cold morning coffee dash. Knowing when—and how—to make the switch from cooling to heating isn’t just about comfort. It’s about efficiency, energy savings, and keeping your system ready for whatever this unpredictable state throws your way.
The Magic Number: Around 60°F (Give or Take)Most Minnesota homeowners start turning on their furnace or heat pump when the daily average drops below 60°F—typically late September through mid-October. If your thermostat still reads in the upper 60s during the day, hold off a bit longer. Let nature do the work and open your windows when possible for fresh air circulation.
Before You Flip That Thermostat…Switching over too fast can cause strain on your HVAC system. Here’s what you should check before turning on the heat:
✅ Change your air filter. Dust from a summer of AC use can choke airflow and make your furnace work harder.
✅ Test your system early. Don’t wait for a cold snap—turn it on once before you need it.
✅ Listen for unusual noises or smells. A mild “burnt dust” scent is normal for first-time use. Anything metallic or smoky isn’t.
✅ Clear your furnace vent and exterior intake pipes. Blockages from leaves or debris can cause system lockouts or safety hazards.
Smart Thermostat Tip for FallIf you’ve upgraded to a smart thermostat, set a “comfort schedule” that gradually shifts from cooling to heating over a few days. This saves energy and keeps your home from feeling like a roller coaster.
For example:
72°F during the day, 68°F at night in early fall.
Shift to 70°F day, 66°F night as outdoor temps drop.
Why Timing Matters for Energy EfficiencySwitching your HVAC system over at the right time isn’t just about comfort—it’s about cost. Running both AC and heat in the same week can spike your bills.
A controlled transition means your furnace doesn’t have to overcompensate for an unvented, humid home or sudden drops in temperature.
Don’t Forget a Seasonal Tune-UpBefore Minnesota’s first freeze hits, schedule a fall HVAC inspection. A technician will:
Inspect heat exchangers and burners for cracks or corrosion.
Test ignition systems and safety controls.
Check airflow, duct balance, and carbon monoxide levels.
Pro tip: Combine your fall heating inspection with a cooling system shut-down check to ensure your AC is winterized correctly.
The Air Comfort Difference
At Air Comfort Heating & Air Conditioning, we’ve seen every kind of Minnesota season—and every kind of thermostat panic. We help homeowners transition smoothly between heating and cooling with honest service, real expertise, and local experience that only comes from decades of keeping Anoka County comfortable.
📞 Call (763) 753-6623 to schedule your fall tune-up before the temps take a dive.
DIY Check of Thermostat Settings and Batteries for Minnesota Homes
When Minnesota weather flips from chilly mornings to sunny afternoons, your thermostat is the traffic controller of your home comfort. If it’s set incorrectly—or worse, if the batteries are dead—you could be left with a furnace or AC that won’t kick on. A quick DIY check keeps your system running smoothly and avoids unnecessary service calls.
Step 1: Verify Your Thermostat Settings
Mode Check: Make sure it’s set to Heat when temps dip, Cool in summer, and Auto for year-round balance.
Fan Setting: Auto helps efficiency, while On keeps air circulating but can raise bills.
Temperature: DOE recommends 68°F in winter and 78°F in summer for comfort and savings.
Local Tip: In Minnesota’s unpredictable fall, consider using programmable settings to warm the house in the morning and ease off during the day when the sun does some of the work.
Step 2: Change Thermostat Batteries
Many thermostats run on AA or AAA batteries.
Change them once a year—a good reminder is every fall when you check smoke alarms.
Low or dead batteries can make your HVAC act like it’s broken when it’s just your thermostat.
Pro Tip: Keep a pack of fresh batteries in the same drawer as your furnace filter for easy seasonal maintenance.
Step 3: Reset or Calibrate if Needed
If your thermostat screen is blank even after new batteries, reset it according to the manufacturer’s instructions.
If rooms don’t feel as warm or cool as the setting suggests, calibration may be needed—something an HVAC pro can do quickly.
When to Call a ProIf your thermostat checks out but your furnace or AC still won’t run, the issue may be in the furnace, wiring, or blower system. That’s when it’s time to call Air Comfort Heating & Air Conditioning.
📞 Call (763) 753-6623 to schedule a service and keep your Minnesota home comfortable through every season.