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Why is My Heat Pump Not Cooling My Home?

In the summer, it’s really difficult to live in the Sarasota area without a good air conditioning system. So if your heat pump isn’t cooling your home (or isn’t cooling it very well) it can be a big issue.

In the summer, it’s really difficult to live in the Sarasota area without a good air conditioning system. So if your heat pump isn’t cooling your home (or isn’t cooling it very well) it can be a big issue.

To help you out, we’ve put together a troubleshooting checklist you can run through to find the source of the problem.

1. Start with the thermostat

It may sound silly, but the first place to look when your heat pump isn’t cooling properly is your thermostat. Ensure the thermostat is set to cool and the temperature is set at least 2 degrees below the current temperature of the house.

If that is set correctly, go outside and…

2. Make sure the outside unit is running

Since the thermostat is calling for air conditioning, the outdoor unit’s fan should be running. If it is, move on to step 3.

If the outdoor unit’s fan isn’t running, your problem could be:

Bad thermostat

  • No power to the air conditioner (check your circuit breaker or fuse panel)
  • Problem with wiring somewhere between thermostat and outdoor unit
  • Bigger problem with the outdoor unit

3. Check your vents for airflow

Now it’s time to go back inside. Put your hand over a vent. Is there air blowing out of the vent?

No air: If there is no air blowing out of the vents, your problem likely lies with the air handler in your attic. Get a technician to come out and find the problem.

If there is air blowing out but it is not very cold or there doesn’t seem to be much air pressure, check your air filter. Make sure the air filter is clean.

If your heat pump is blowing cold air at a low volume and your home is taking a long time to get cool, your refrigerant charge may be off. Or the coils in your evaporator may need to be cleaned.

Both of these issues can be solved with a yearly tune up of your heat pump.

Other heat pump problems

Still having issues with your heat pump? We can help. Contact the air conditioning experts Sarasota homeowners trust.