Your heat pump is an essential part of your home because it provides year-round comfort. But, like any home comfort system, it’s bound to have some issues every now and then.

Let’s examine these troubles and how much they might cost to fix, so you’ll have some idea before you call an HVAC technician. Some of the most typical 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 a lot of reasons why your heat pump won’t turn on, so we suggest 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 right setting? If you want air conditioning, make sure it’s set to “cool,” “auto” and that your setting is lower than the ambient temperature. If you want heating, it should be set to “heat,” “auto” and your setting should be higher than the current temperature. If you have a programmable thermostat, replace the batteries if the screen looks 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 corresponding breaker if it’s facing the outside of the electrical panel.
  • Is the air filter dirty? A dirty air filter is problematic for your heat pump. If you can’t see light through it, it’s time to replace it.

If these steps don’t correct the issue, you’ll need to contact a heating and cooling company like LTS Plumbing & Heating Inc..

Estimated Repair Cost

This issue can be complicated, so how much it costs to correct it will depend on what’s wrong.

2. Heat Pump Won’t Turn Off

If it’s extremely hot or cold outside, your heat pump may need to operate longer than normal to reach your desired temperature.

If the weather is normal, check that your thermostat is set properly and running normally. If the fan setting is at “on,” the blower motor on your air handler will go 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 correctly, 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 controls the flow of electricity.
  • Leaky ductwork.

Estimated Repair Cost

This can be connected to a lot of issues, so your heat pump repair cost will depend on the problem and how elaborate it is.

3. Heat Pump Won’t Defrost

Every now and then during cold weather, your heat pump will temporarily go into cooling mode. This will dissolve light frost and ice that normally builds up on the coils. A heat pump that becomes heavily iced over may have difficulty heating your home or shut down altogether.

Here are a few reasons why this might be taking place:

  • Your heat pump doesn’t have enough airflow because it’s obstructed by snow, bushes or yard waste.
  • Your gutters are dripping water on top of your heat pump, producing 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 notice a sweet, formaldehyde-like odor around the outdoor unit.

Estimated Repair Cost

Like we discussed before, there are many 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 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 pricier since it’s no longer being produced.

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 associated to many issues. We suggest checking for:

  • Right thermostat settings
  • Tripped circuit breakers
  • A dirty air filter
  • Ice on your heat pump

If there’s nothing awry with your thermostat, circuit breakers or air filter, you’ll need help from an HVAC technician to diagnose 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 charge may vary based on your heat pump brand, model and the severity 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 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 switching 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 true for heat pumps, especially if you have backup or emergency heating.

You can test your new thermostat by switching the fan mode to “on.” If you don’t hear the blower motor start in your air handler, there’s probably a problem with the thermostat.

A couple other common thermostat problems involve:

  • Wiring was done wrong.
  • 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 problems.

Estimated Repair Costs

The cost of professional thermostat installation depends considerably on what kind of thermostat you want. While programmable thermostats are cheaper, they lack the sophisticated 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 suggest checking for:

  • Correct thermostat settings
  • Tripped circuit breakers
  • A dirty air filter
  • Ice on your heat pump

An icy heat pump or leaky ductwork will require the assistance of an HVAC technician. Ductwork is hard to reach since it’s placed 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 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 runs on. R-22 Freon is more expensive 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 irritating, but not when you get in touch with LTS Plumbing & Heating Inc.. Our experts have been supplying the quality, affordable heat pump repair Paxinos homeowners have relied on since {year}. Call us at 570-648-0748 to secure your free estimate now.

Average repair costs are sourced from Fixr, which compiles estimates based on nationwide averages.