Your heat pump is an essential part of your home because it delivers year-round comfort. But, like any home comfort system, it’s bound to encounter some problems once in a while.

Let’s examine these problems and how much they might cost to repair, so you’ll have some idea before you contact 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 Isn’t Turning On

There are lots of reasons why your heat pump won’t turn on, so we suggest checking all of them. Sometimes they are as easy as restoring a thermostat setting or replacing 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 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 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 run if it doesn’t have power. Reset the corresponding breaker if it’s facing the outside of the electrical panel.
  • Is the air filter clogged? A dirty air filter is troublesome 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 Cytech Heating & Cooling L.C..

Estimated Repair Cost

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

2. Heat Pump Can’t Shut Down

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 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 go 24/7. So, it’ll sound like your heat pump is working 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 properly, there are several other problems that could be causing your heat pump to run all the time. They include:

  • A new thermostat that isn’t compatible with your heat pump.
  • A malfunctioning compressor contactor, which controls the flow of electricity.
  • Leaky ductwork.

Estimated Repair Cost

This can be linked to many issues, so your heat pump repair cost will depend on the problem and how elaborate it is.

3. Heat Pump Isn’t Defrosting

Every now and then during cold weather, your heat pump will briefly go into cooling mode. This will dissolve light frost and ice that naturally accumulates on the coils. A heat pump that becomes totally frozen may have difficulty heating 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 blocked by snow, bushes or yard debris.
  • Your gutters are dripping water on top of your heat pump, causing an icy buildup.
  • A part is not working, 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 likely 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 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 degree 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 higher priced since it’s no longer being made.

4. Heat Pump Can’t Produce Cool Air

Just like a heat pump that won’t turn on, a heat pump that won’t cool can be associated to many problems. We advise checking for:

  • Ideal thermostat settings
  • Tripped circuit breakers
  • A dirty 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 diagnose a problem with your ductwork or an iced-over heat pump. Like we discussed 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 cost 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 Won’t Turn On After Upgrading the Thermostat

If your heat pump won’t turn on after altering the thermostat, the problem is probably connected to your new thermostat. While you can install 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 check 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 incorrectly.
  • Thermostat isn’t interacting with heat pump.
  • Thermostat is in emergency heat mode, which involves 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 problems.

Estimated Repair Costs

The cost of professional thermostat installation depends considerably on what type of thermostat you want. While programmable thermostats are cheaper, 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 connected to similar problems with a heat pump that won’t cool. We suggest checking for:

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

An icy heat pump or leaky ductwork will require the help of an HVAC technician. Ductwork is hard to reach since it’s placed behind walls and several issues can cause your heat pump to ice over.

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 kind of refrigerant your heat pump uses. R-22 Freon is more expensive since it’s no longer being made.
  • Seal leaky ductwork: Depends on house size.

Take Care of Your Heat Pump Problems Quickly and Affordably with Our Help

Dealing with a malfunctioning heat pump can be annoying, but not when you contact Cytech Heating & Cooling L.C.. Our professionals have been supplying the quality, affordable heat pump repair Rio Grande Valley homeowners have relied on since 1991. Get in touch with us at 956-630-3522 to secure your free estimate now.

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