Furnace and heat pump repair in Mt. Juliet
When the heat goes out on a cold Wilson County night, we answer the phone and send a technician.
Winters in Mt. Juliet are mild until they are not. A week of 55 degree afternoons can be followed by a night in the teens, and the heating system that sat idle for months has to carry the whole house. That swing is exactly when worn ignitors, dirty flame sensors, tired blower motors and iced-over heat pumps give out. Heavenly Air repairs furnaces and heat pumps in Mt. Juliet and the surrounding area, 24 hours a day.
Because our office is in Lebanon, a few exits east on I-40, a Mt. Juliet heating call is a short trip for us. We repair all makes and models, diagnose before we replace parts and tell you the safe answer even when it is not the cheap one.
Furnace or heat pump: which do you have?
Many Mt. Juliet homes, especially newer ones, heat with a heat pump, which moves heat from the outdoor air into the house and doubles as the air conditioner. Others use a gas furnace, and some use both in a dual-fuel setup. The repair problems are different, so we start by confirming what you have.
- Gas furnace: ignitor, flame sensor, pressure switch, inducer motor, blower and limit switch problems are the most common reasons for no heat.
- Heat pump: defrost control, reversing valve, refrigerant charge, outdoor fan and the electric auxiliary heat strips.
- Dual fuel: the control that decides when to switch between the two can fail even when both systems are fine.
Heat pump quirks that worry Mt. Juliet homeowners
Frost on the outdoor coil on a cold, damp morning is normal. The unit runs a defrost cycle, you may see steam and hear the fan stop, and the system recovers. What is not normal is a coil buried in ice that never clears, a unit stuck in defrost, or cold air from the vents. Those need a technician.
If your thermostat has an emergency heat setting, use it only if the heat pump has stopped working. It runs the electric heat strips alone, which costs far more to run, and a high winter bill is often the first sign a heat pump is struggling.
Safety comes first on any furnace call
A cracked heat exchanger or a blocked flue can let carbon monoxide into the house. A combustion safety check is part of a serious furnace diagnosis, and if we find something unsafe we will tell you what has to happen before the furnace runs again. Every home with gas heat, a fireplace or an attached garage should have working carbon monoxide detectors on each level. If you ever smell gas, leave the house and call your gas utility and 911 from outside.
A few checks to try before you call
These can save a visit, and they help the technician if they do not:
- Confirm the thermostat is set to heat and the batteries are fresh
- Replace a clogged air filter
- Check the furnace breaker and the service switch near the unit
- Make sure outdoor heat pump units are not buried in leaves, snow or ice
Repair or replace your heating system?
Furnaces commonly last 15 to 20 years and heat pumps 10 to 15. If yours is older, has a cracked heat exchanger or needs a major part, ask for a replacement estimate too. See furnace and heat pump installation in Mt. Juliet for how we approach it.
Furnace & Heat Pump Repair in Mt. Juliet: common questions
Is emergency heating repair available in Mt. Juliet on weekends and holidays?
Yes. Heavenly Air technicians are available 24 hours a day, every day of the year, including nights, weekends and holidays.
Why is my heat pump blowing cold air?
It may be in a normal defrost cycle for a few minutes. If the air stays cold, the cause could be low refrigerant, a stuck reversing valve, an iced coil or failed auxiliary heat. A technician can tell which.
My furnace turns on and off. What is wrong?
Short cycling usually points to a restricted filter, a failing flame sensor, an overheating limit switch or a venting problem. Replace the filter first, and if it continues, call for service.
Do you repair every brand of furnace?
Yes. We repair all makes and models of furnaces and heat pumps.
More Heavenly Air services in Mt. Juliet
AC Repair
Mt. Juliet, TN
AC Installation & Replacement
Mt. Juliet, TN
Furnace & Heat Pump Installation
Mt. Juliet, TN
HVAC Maintenance & Tune-Ups
Mt. Juliet, TN
24/7 Emergency HVAC Repair
Mt. Juliet, TN
Commercial HVAC
Mt. Juliet, TN
See everything we do in Mount Juliet, or read the full guide to heating service and repair.
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