If you’re noticing a smell from your heat pump, it’s trying to tell you that something is up. We’ve created 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 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 prevent this by scheduling routine heat pump maintenance and air duct cleaning.
2. Heat Pump Smells Like Fish
If your heat pump smells like fish, there could be a couple of things wrong:
- Overheated motor
- Wiring issue
- Plastic components or coating is melting
- Other mechanical problem
Electrical problems are dangerous, so turn your heat pump system off immediately at the breaker box and call us at 928-432-6018 for heat pump repair.
3. Heat Pump Smells Like Sulfur
Usually when you smell a rotten egg smell, you have a gas leak. But your heat pump doesn’t use natural gas. If your heat pump smells like sulfur, a small animal may have gotten inside it for warmth and died. One of our B&D Air Conditioning [technicians can get rid of the smell by cleaning your heat pump.
4. Heat Pump Smells Like Sewer
As we mentioned earlier, your heat pump is electric, so any rotten egg smells are linked to a gas leak somewhere else. If your heat pump smells like sewer, you might have a backed-up or broken sewer line. We recommend contacting a company that does sewer line repair.
5. Heat Pump Smells Like Burning
You might have an electrical problem if your heat pump smells like burning, burning plastic or burning rubber. This burning smell can be caused by melting plastic on electrical wires. Electrical problems in HVAC systems are dangerous and could lead to a fire. If you notice this smell, shut off your heat pump at the breaker and call us at 928-432-6018.
6. Heat Pump Defrost Cycle Smells
Like we mentioned earlier, a dirty socks smell can happen when your evaporator coils need to be cleaned. You might notice this smell when your heat pump is in defrost mode.
It’s common for your heat pump to have to use defrost mode during heating season. When the air is much cooler, frost can form quickly on the coils from condensation and impede heating. During defrost mode, your heat pump briefly switches to air conditioning to get rid of the frost.
Having a B&D Air Conditioning HVAC technician clean the coils will help eliminate the odor.
Trust Us with Your Heat Pump Repair Needs
It can be difficult to troubleshoot your heat pump by yourself. Your comfort matters to us at B&D Air Conditioning, so you can count on our professionals to assist you when you need us. When you need heat pump repair in Safford that you can depend on, call us at 928-432-6018.