If you’re discovering a odor from your heat pump, it’s trying to tell you that something is wrong. We’ve created a list of the most commonly encountered six heat pump smells, what causes them and how you can correct 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 called dirty sock syndrome. You can deter 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 a couple of things wrong:
- Motor is too hot
- Wiring problem
- Plastic components or coating is melting
- Other mechanical difficulties
Electrical problems are dangerous, so turn your heat pump system off immediately 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’ve got a gas leak. But your heat pump doesn’t utilize natural gas. If your heat pump smells like sulfur, a small animal may have crawled inside it for warmth and died. One of our Alpine Summit Heating & Cooling experts can eliminate 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 in another place. If your heat pump smells like sewer, you might have a backed-up or broken sewer line. We advise contacting a company that does sewer line repair.
5. Heat Pump Smells Like Burning
You might have an electrical concern 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 lead to 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 above, a dirty socks smell can happen when your evaporator coils need sanitizing. You might experience this smell when your heat pump is in defrost mode.
It’s typical for your heat pump to have to turn on defrost mode during heating season. When the air is much cooler, frost can form rapidly on the coils from condensation and restrict heating. During defrost mode, your heat pump briefly switches to ac to remove the frost.
Having a Alpine Summit Heating & Cooling HVAC technician clean the coils will help get rid of the smell.
Depend on for Your Heat Pump Repair Needs
It can be difficult to troubleshoot your heat pump by alone. Your comfort matters to us at Alpine Summit Heating & Cooling, so you can count on our specialists to assist you when you need us. When you need heat pump repair in that you can depend on, call us at .