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

Let’s review these issues and how much they might cost to fix, 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 Isn’t Turning 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 painless as fixing a thermostat setting or changing your air filter.

Here’s what to check:

  • Is your thermostat on the proper setting? If you want air conditioning, make sure it’s set to “cool,” “auto” and that your setting is lower than the current temperature. If you want heating, it should be set to “heat,” “auto” and your setting should be greater than the current temperature. If you use a programmable thermostat, put in new the batteries if the screen looks jumbled or blank.
  • Has the circuit breaker been tripped? Your heat pump won’t be able to turn on if it does not have power. Reset the appropriate breaker if it’s facing the outside of the electrical panel.
  • Is the air filter blocked? A dirty air filter is problematic 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 issue, you’ll need to call a heating and cooling company like Myers Furnace Company.

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 Stays On Constantly

If it’s very hot or cold outside, your heat pump may need to run longer than normal to achieve your desired temperature.

If the weather is normal, check that your thermostat is set properly and operating normally. If the fan setting is at “on,” the blower motor on your air handler will run 24/7. So, it’ll sound like your heat pump is running all the time. Constantly using the blower can keep humidity levels in check, but it’ll also drive up your electrical bills.

If your thermostat is set correctly, there are a few other problems 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 linked 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 briefly go into cooling mode. This will melt 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 a few reasons why this might be taking place:

  • Your heat pump doesn’t have sufficient airflow because it’s blocked by snow, bushes or yard debris.
  • Your gutters are dripping water on top of your heat pump, creating an icy buildup.
  • A part is not working, which may include 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 likely if you’re hearing bubbling or hissing noises. Or if you find a sweet, formaldehyde-like odor around the outdoor unit.

Estimated Repair Cost

Like we mentioned before, there are a few reasons why your heat pump won’t defrost. But here are a number estimated costs for some of these issues. Keep in mind your cost may vary based on your heat pump brand, model and the severity of the issue.

  • 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 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 linked to many issues. We advise checking for:

  • Correct 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 assistance from an HVAC technician to identify a problem with your ductwork or an iced-over heat pump. Like we discussed earlier, a heat pump that won’t defrost might have an issue 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 problem.

  • 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 pricier since it’s no longer being manufactured.
  • Seal leaky ductwork: Depends on house size.

5. Heat Pump Malfunctions After Upgrading the Thermostat

If your heat pump won’t turn on after changing the thermostat, the problem is probably connected 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 need 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 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 professional recommend a thermostat and expertly install it. That way, you’ll stay away from any compatibility or wiring issues.

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 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 suggest checking for:

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

An icy heat pump or leaky ductwork will require the assistance 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 extent of the concern.

  • 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 pricier since it’s no longer being made.
  • Seal leaky ductwork: Depends on house size.

Resolve Any Heat Pump Problems Quickly and Affordably with Help from Local Experts

Dealing with a malfunctioning heat pump can be irritating, but not when you call Myers Furnace Company. Our experts have been delivering the quality, affordable heat pump repair Belton homeowners have depended on since 1983. Call us at 816-249-1619 to get your free estimate now.

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