When the temperature drops, there’s nothing worse than realizing your heat isn’t working properly. Whether it’s a furnace that won’t start or a system that just can’t keep up, heating issues can make your home uncomfortable fast. The good news is, many common heating problems have simple explanations —and even simpler solutions.
Uneven Heating Throughout the House
Does one room feel warm while another stays chilly? Uneven heating is one of the most common household complaints.
This often happens when:
- Vents are blocked by furniture, curtains, or rugs.
- Air filters are dirty, restricting airflow through your system.
- Ductwork leaks warm air before it reaches certain rooms.
What to do:
- Make sure all vents are open and clear of obstructions.
- Replace or clean your air filter—a quick fix often makes a big difference.
- If certain areas still feel cold, it might be time to have your ductwork inspected for leaks or poor insulation.
Furnace Blowing Cold Air
If your furnace is running but the air feels cold, don’t panic—this problem can often be solved easily.
Here are a few common causes:
- Thermostat settings: Double-check that your thermostat is on “heat,” not “fan.”
- Dirty air filter: A clogged filter can cause your system to overheat and shut off the burner.
- Pilot light or ignition issues: Older systems rely on a pilot light, while newer ones use electronic ignition. If the pilot light is out or the ignition is malfunctioning, the furnace won’t produce heat.
Quick tip: Try resetting your thermostat and replacing your filter first. If the air still doesn’t warm up, it’s best to call a professional to check the furnace safely.
Strange Noises From the Furnace
Rattling, banging, or squealing noises can be alarming—but they’re also valuable clues.
- Rattling might mean a loose panel or screw.
- Banging or popping often points to expanding ducts or delayed ignition.
- Squealing can indicate a worn belt or motor issue.
If the noise continues after tightening visible panels, it’s time for an inspection. Unusual sounds could signal that parts are wearing out or that your system needs cleaning and lubrication.
Weak Airflow
When your furnace is on but the air barely comes out of the vents, the issue might be:
- A clogged filter or blocked duct.
- A failing blower motor.
- Low air pressure from an undersized or damaged duct system.
Start by replacing the air filter. If that doesn’t help, a professional can test airflow and pinpoint where it’s being restricted. Proper airflow is crucial for even heating and efficiency—fixing it early prevents higher energy bills later.
Furnace Won’t Turn On
A completely unresponsive furnace can be frustrating. Before assuming the worst, try these steps:
- Check the thermostat batteries or settings.
- Ensure the breaker switch hasn’t tripped.
- Look at the furnace switch—sometimes it’s accidentally turned off.
- Inspect for a flashing error light (if your furnace has one).
If everything looks normal and it still won’t start, there may be an issue with the ignition system or control board—both are best left to a trained technician.
Keeping Your System Running Smoothly
Preventive maintenance can go a long way toward avoiding heating problems. Schedule a professional tune-up at least once a year. During a tune-up, a technician will:
- Clean and inspect key components
- Test safety controls
- Check for leaks or worn parts
- Verify efficiency and performance
This not only helps prevent unexpected breakdowns but also keeps your system running efficiently and safely.
Need Help With Your Heating System?
When your heat stops working, you don’t have to face it alone. The experienced technicians at R&D Plumbing and Heating are here to diagnose and repair heating problems quickly and safely. Whether it’s a small fix or a system that needs attention, we’ll help restore your comfort and peace of mind.
Call (587) 800-8569 or schedule your service online today—and keep your home warm all season long.