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 popular 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 probably mold growing on damp evaporator coils or in the ductwork. This heat pump odor is often called 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 several things wrong:
- Overheated motor
- Wiring problems
- Plastic components or coating is melting
- Other mechanical problem
Electrical problems are unsafe, so turn your heat pump system off immediately at the breaker box and get a hold of us at 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 utilize natural gas. If your heat pump smells like sulfur, a tiny animal may have crawled inside it for warmth and died. One of our Goode Bros AC & Heating [techs can get rid of 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 somewhere else. If your heat pump smells like sewer, you might be dealing with a backed-up or broken sewer line. We recommend calling 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 caused by melting plastic on electrical wires. Electrical troubles in HVAC systems are serious and could cause a fire. If you notice this smell, turn off your heat pump at the breaker and get a hold of us at .
6. Heat Pump Defrost Cycle Smells
Like we discussed earlier, a dirty socks smell can happen when your evaporator coils need to be cleaned. You might notice this smell when your heat pump has defrost mode.
It’s typical for your heat pump to have to switch 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 get rid of the frost.
Having a Goode Bros AC & Heating HVAC technician clean the coils will help get rid of the smell.
Trust Us with Your Heat Pump Repair Needs
It can be confusing to troubleshoot your heat pump by all by yourself. Your comfort matters to us at Goode Bros AC & Heating, so you can count on our professionals to help you when you need us. When you need heat pump repair in that you can rely on, call us at .