Your heat pump is an essential part of your home because it delivers year-round comfort. But, like any home comfort system, it’s certain to have some problems once in a while.
Let’s review these issues and how much they might cost to repair, so you’ll have some idea before you contact an HVAC technician. Some of the most common heat pump repair problems include:
- Heat pump won’t turn on
- Heat pump won’t turn off
- Heat pump won’t defrost
- Heat pump won’t cool
- Heat pump won’t turn on after changing thermostat
- Heat pump won’t heat
1. Heat Pump Won’t Turn On
There are plenty of reasons why your heat pump won’t turn on, so we recommend checking all of them. Sometimes they are as simple as correcting a thermostat setting or replacing your air filter.
Here’s what to check:
- Is your thermostat on the correct setting? If you want air conditioning, make sure it’s set to “cool,” “auto” and that your setting is lower than the room temperature. If you want heat, it should be set to “heat,” “auto” and your setting should be greater than the current temperature. If you use a programmable thermostat, replace the batteries if the screen appears jumbled or blank.
- Has the circuit breaker been tripped? Your heat pump won’t be able to operate if it does not have power. Reset the matching breaker if it’s facing the outside of the electrical panel.
- Is the air filter dirty? A dirty air filter is difficult for your heat pump. If you can’t see light through it, it’s time to get a new one.
If these steps don’t correct the problem, you’ll need to call a heating and cooling company like House of Heating Incorporated.
Estimated Repair Cost
This issue can be complicated, so how much it costs to fix it will depend on what’s wrong.
2. Heat Pump Won’t Turn Off
If it’s very hot or cold outside, your heat pump may need to run longer than normal to reach your desired temperature.
If the weather is typical, check that your thermostat is set correctly and operating normally. If the fan setting is at “on,” the blower motor on your air handler will run 24/7. So, it’ll appear as though your heat pump is working all the time. Constantly using the blower can keep humidity levels in check, but it’ll also increase your electrical bills.
If your thermostat is set properly, there are several other issues that could be causing your heat pump to run all the time. They include:
- A new thermostat that isn’t appropriate for your heat pump.
- A malfunctioning compressor contactor, which regulates the flow of electricity.
- Leaky ductwork.
Estimated Repair Cost
This can be related to a few issues, so your heat pump repair cost will depend on the problem and how complex it is.
3. Heat Pump Won’t Defrost
Occasionally during cold weather, your heat pump will temporarily go into cooling mode. This will dissolve light frost and ice that naturally builds up on the coils. A heat pump that becomes totally frozen may struggle to heat your home or shut down altogether.
Here are several reasons why this might be taking place:
- Your heat pump doesn’t have sufficient airflow because it’s obstructed by snow, bushes or yard waste.
- Your gutters are dripping water on top of your heat pump, causing an icy buildup.
- A part is malfunctioning, which may involve the reversing valve, relays, controls or sensors.
- The outdoor fan motor is damaged, dying or dead.
- Your heat pump has a refrigerant leak. This is possible if you’re hearing bubbling or hissing sounds. Or if you find a sweet, formaldehyde-like odor near the outdoor unit.
Estimated Repair Cost
Like we discussed before, there are a lot of reasons why your heat pump won’t defrost. But here are several estimated costs for some of these issues. Keep in mind your cost may vary based on your heat pump brand, model and the extent of the issue.
- Replace reversing valve: $200–$600
- Replace outdoor fan motor: $250–$650
- Repair refrigerant leak: Depends on the type of refrigerant your heat pump uses. R-22 Freon is more expensive since it’s no longer being manufactured.
4. Heat Pump Won’t Cool
Just like a heat pump that won’t turn on, a heat pump that won’t cool can be linked to many issues. We advise checking for:
- Ideal thermostat settings
- Tripped circuit breakers
- A clogged air filter
- Ice on your heat pump
If there’s nothing faulty with your thermostat, circuit breakers or air filter, you’ll need help from an HVAC technician to identify a problem with your ductwork or an iced-over heat pump. Like we reviewed earlier, a heat pump that won’t defrost might have a problem with its reversing valve, outdoor fan motor or a refrigerant leak.
Estimated Repair Costs
These repair costs are estimates. Your total expense may vary based on your heat pump brand, model and the severity of the problem.
- Replace reversing valve: $200–$600
- Replace outdoor fan motor: $250–$650
- Repair refrigerant leak: Depends on the kind of refrigerant your heat pump uses. R-22 Freon is more expensive since it’s no longer being manufactured.
- Seal leaky ductwork: Depends on house size.
5. Heat Pump Won’t Turn on After Changing Thermostat
If your heat pump won’t turn on after changing the thermostat, the problem is probably tied to your new thermostat. While you can use just about any thermostat with a furnace, the same isn’t accurate for heat pumps, especially if you have backup or emergency heating.
You can test your new thermostat by changing the fan mode to “on.” If you don’t hear the blower motor start in your air handler, there’s probably an issue with the thermostat.
A couple other common thermostat problems include:
- Wiring was done incorrectly.
- Thermostat isn’t communicating with heat pump.
- Thermostat is in emergency heat mode, which requires a reset.
It’s wise to have a heating and cooling pro recommend a thermostat and expertly install it. That way, you’ll avoid any compatibility or wiring issues.
Estimated Repair Costs
The cost of professional thermostat installation depends considerably on what type of thermostat you want. While programmable thermostats are less expensive, they are missing the advanced features and convenience of a smart thermostat.
6. Heat Pump Won’t Heat
A heat pump that won’t heat is linked to similar problems with a heat pump that won’t cool. We encourage checking for:
- Appropriate thermostat settings
- Tripped circuit breakers
- A clogged air filter
- Ice on your heat pump
An icy heat pump or leaky ductwork will require the help of an HVAC technician. Ductwork is difficult to reach since it’s located behind walls and several issues can cause your heat pump to freeze up.
Estimated Repair Costs
These repair costs are estimates. Your total cost may vary based on your heat pump brand, model and the level of the concern.
- Replace reversing valve: $200–$600
- Replace outdoor fan motor: $250–$650
- Repair refrigerant leak: Depends on the kind of refrigerant your heat pump runs on. R-22 Freon is pricier since it’s no longer being made.
- Seal leaky ductwork: Depends on house size.
Fix Your Heat Pump Problems Quickly and Affordably with Our Help
Dealing with a malfunctioning heat pump can be annoying, but not when you get in touch with House of Heating Incorporated. Our experts have been providing the quality, affordable heat pump repair Marshfield homeowners have depended on since {year}. Contact us at 715-384-3163 to request your free estimate now.
Average repair costs are sourced from Fixr, which compiles estimates based on nationwide averages.