If you’re recognizing a odor from your heat pump, it’s trying to tell you that something is up. We’ve developed a list of the top six heat pump smells, what causes them and how you can fix them.
- Heat pump smells musty
- Heat pump smells like fish
- Heat pump smells like sulfur
- Heat pump smells like sewer
- Heat pump smells like burning
- Heat pump defrost cycle smells
1. Heat Pump Smells Musty
If your heat pump smells musty, there’s most likely mold growing on wet evaporator coils or in the ductwork. This heat pump odor is often referred to as dirty sock syndrome. You can avoid this by scheduling frequent heat pump maintenance and air duct cleaning.
2. Heat Pump Smells Like Fish
If your heat pump smells like fish, there could be several things wrong:
- Overheated motor
- Wiring problems
- Plastic components or coating is melting
- Other mechanical problem
Electrical problems are serious, so turn your heat pump system off right away at the breaker box and contact us at for heat pump repair.
3. Heat Pump Smells Like Sulfur
Normally when you are dealing with a rotten egg smell, you have a gas leak. But your heat pump doesn’t utilize natural gas. If your heat pump smells like sulfur, a little animal may have gotten inside it for warmth and died. One of our Booneville Heating & Cooling experts can remove the smell by cleaning your heat pump.
4. Heat Pump Smells Like Sewer
As we discussed above, your heat pump is electric, so any rotten egg smells are tied to a gas leak in another place. If your heat pump smells like sewer, you might currently have a backed-up or broken sewer line. We recommend getting in touch with a company that does sewer line repair.
5. Heat Pump Smells Like Burning
You might be dealing with an electrical issue if your heat pump smells like burning, burning plastic or burning rubber. This burning smell can be due to melting plastic on electrical wires. Electrical issues in HVAC systems are serious and could cause a fire. If you notice this smell, shut off your heat pump at the breaker and call us at .
6. Heat Pump Defrost Cycle Smells
Like we mentioned previously, a dirty socks smell can happen when your evaporator coils need to be cleaned. You might experience this smell when your heat pump goes into defrost mode.
It’s ordinary for your heat pump to have to turn on defrost mode during heating season. When the air is much cooler, frost can form fast on the coils from condensation and impede heating. During defrost mode, your heat pump briefly switches to cooling to remove the frost.
Having a Booneville Heating & Cooling HVAC technician clean the coils will help eliminate the smell.
Depend on for Your Heat Pump Repair Needs
It can be hard to troubleshoot your heat pump by alone. Your comfort matters to us at Booneville Heating & Cooling, so you can count on our experts to support you when you need us. When you need heat pump repair in that you can depend on, call us at .