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This
is probably the most common Summer-Time Complaint!
First things first. Please check all of the
obvious things before calling for a service-call.
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Is the thermostat on "cool" and turned down below room
temperature? |
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Is the Power on to the indoor unit? Did you check the
breaker? |
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Is the Power on to the outdoor unit? Did you check the
breaker? |
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If yes to these, is the outdoor unit running? |
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If no, see if the outdoor unit has a red reset button
and push it. |
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If that didn't work, see if you have a condensate pump
at the indoor unit. If you do, some pumps have a safety switch that shuts
off the outdoor unit if the pump overfills and fails to pump. So check the
pump to see if it is working. |
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If that wasn't the problem, back outside at the unit
there usually is a disconnect box mounted on the wall. Some of these have
fuses or a breaker inside. If there is a breaker, make sure it didn't
trip. If there are fuses, they should be checked. But please do not
attempt this unless you are familiar with working with electricity. |
After having checked all of these things and your
unit still isn't running, now you can call for service.
If your outdoor and indoor units ARE RUNNING
but not cooling, you will most likely need to make a service-call.
Below is a list of possible causes.
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Low refrigerant charge
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| Refrigerant flow-related problem - restriction/bad metering device
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| Poor efficiency- needs cleaning and servicing |
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| Bad reversing valve |
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| Bad compressor valves |
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- Outdoor coils blocked or very dirty
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- Open windows/poorly insulated
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