Late winter’s unpredictable weather can wreak havoc on your HVAC system. Just when you think the coldest days are behind you, a sudden freeze or unexpected thaw can bring a whole host of new problems. This post addresses common late-winter HVAC issues, offering helpful advice and solutions for homeowners.
Why Late Winter Is Tough on HVAC Systems
Late winter brings temperature fluctuations, from freezing nights to milder days. This constant back-and-forth can stress your HVAC system.
This makes it more prone to malfunctions. Winter’s accumulated wear and tear also takes a toll.
Common Late-Winter HVAC Problems
1. Frozen Pipes
Freezing temperatures are a primary reason for frozen pipes, leading to pressure buildup and potential bursts. This is a common HVAC problem, although it can happen earlier in winter.
There is a risk of more winter HVAC problems when temperatures shift substantially during late winter. Even daytime temperatures that climb above freezing provide temporary relief.
Pipes can quickly freeze again as soon as the sun sets. If your pipes aren’t completely frozen, there are preventative steps you can take. Set your thermostat settings above 60°F.
Open cabinet doors under sinks to let warm air circulate. Letting faucets drip can help maintain some movement within pipes.
This is especially helpful during a deep freeze or blizzard. Insulate exposed pipes with pipe wrap and consider insulating outdoor faucets with foam coverings too.
2. Inconsistent Heating & Airflow
One of the most frequent common late-winter HVAC problems is uneven airflow. This is usually due to clogged filters or blocked vents. Inconsistent heating can make some rooms feel frigid while others are too warm.
There are simple troubleshooting measures you can take at home. Change or clean air filters. Dust or other blockages are common HVAC issues that can restrict airflow.
Check all vents for obstructions, including registers blocked by furniture or dust. In older homes, blocked or damaged air ducts can cause restricted airflow. Aeroseal duct sealing can help with these common HVAC problems.
For Chicagoland’s dust and allergens, a MERV rating between 8-11 offers good protection. These simple things fixed my airflow issue last February.
3. Thermostat Problems
A malfunctioning thermostat is among the list of common late-winter HVAC problems. It can cause your system to short cycle, or maybe not work at all. This may lead to uncomfortable room temperatures, higher energy bills, or a complete system shutdown.
Thermostats can malfunction due to many issues, including loose wiring. Here are basic checks to diagnose if there really is an issue with your thermostat itself.
Look up your device model to make sure everything is how it should be.
- Check for Display Issues: Is the screen blank, frozen, or flashing odd symbols? This might be a sign of a failing battery, a blown fuse, faulty internal circuitry, or a tripped circuit breaker powering the thermostat.
- Unresponsive System: Check if changing the desired thermostat settings causes changes in the house itself. If no change, that might mean an issue.
- Unusual Sounds: Do you hear grinding or clicking sounds inside of it? This usually means the thermostat itself might have electrical or physical components internally breaking.
- Cycling Issues: Check that it turns on at all or seems to turn itself off shortly after trying to ignite. If your thermostat is not working, it could be a bigger problem.
4. Pilot Light or Ignition Problems
Gas furnaces rely on a pilot light or electronic ignition to start the burners. In older systems with pilot lights, if the flame sensor goes out, the furnace won’t ignite.
A flickering pilot light can be a sign of incomplete combustion. This can happen frequently from a gust of wind or issues with the flame sensors.
If this issue persists, there may be drafts, faulty thermocouples, or a cracked heat exchanger. These should never be ignored due to the dangers of deadly gases such as carbon monoxide (CO).
Preventing Common Late-Winter HVAC Issues
We have detailed many common late-winter HVAC problems and solutions above. Let us now address preventative steps that every homeowner can consider.
| Maintenance Task | Benefit |
|---|---|
| Change air filters every 1-3 months or as needed, particularly during heavy-use seasons. Make sure your filter isn’t clogged which can reduce airflow. | Catches potential problems early and ensures efficient system operation for the coming seasons. Scheduling regular service will help reduce your need for furnace repair or emergency service. |
| Clear debris around outdoor units regularly and cover during periods of inactivity. Remove obstructions to maintain air circulation. The covering can prevent debris accumulation. | Keeps airflow unobstructed and maintains indoor air quality. Clogged filters make your HVAC system work harder which can cause additional problems down the road. |
| Clear debris around outdoor units regularly and cover during periods of inactivity. Remove obstructions to maintain air circulation. Covering can prevent debris accumulation. | Reduces strain on the system and promotes longevity. Strange noises from your heat pump can be an indicator of small problems such as loose pipes and can prevent damage later on. Inspect vents and duct work and listen for any odd noises as these can indicate problems as well. |
Conclusion
Addressing common late-winter HVAC issues promptly is key to ensuring your home remains comfortable and safe. This is especially important through those random temperature fluctuations. Be sure to look up your thermostat settings to verify you’re optimizing the cold air, so you won’t feel colder.
Understanding common problems at this time of year can help you save on future repair bills. This will preserve everyone’s sense of comfort at home and prevent surprises that can break the budget.
Contact us today for more information or to schedule a free consultation.