Troubleshooting Tips - Carrier 51QW007716G User Manual

Before calling for service, review this list. It may save you time and expense. This list includes common occurrences that are
not the result of defective workman-ship or materials in this appliance.
Normal Operation
You may hear a pinging noise caused by water being picked up and thrown against the condenser on rainy days or
when the humidity is high. This design feature helps remove moisture and improve efficiency.
You may hear the thermostat click when the compressor cycles on and off.
Water will collect in the base pan during high humidity or on rainy days .The water may overflow and drip from the
outdoor side of the unit.
The fan may continue to operate when the compressor has cycled off.
Abnormal Operation
Problem
Air conditioner
does not start
Air conditioner
does not cool as
it should
Air conditioner
freezing up
Air conditioner
does not heat as
it should

Troubleshooting tips

Possible Causes
The air conditioner is
unplugged.
The fuse is blown/circuit
breaker is tripped.
Power failure.
Airflow is restricted .
The air filter is dirty.
The room may have been
hot.
Cold air is escaping.
Cooling coils have iced up.
Ice blocks the air flow and
stops the air conditioner
from cooling the room.
Airflow is restricted .
The air filter is dirty.
Hot air is escaping.
Vent set at OPEN position.
What To Do
Make sure the air conditioner plug is pushed completely into
the outlet and switched on.
Check the house fuse/circuit breaker box and replace the
fuse or reset the breaker.
If power failure occurs, switch off and disconnect /unplug the
power cord. When power is restored, reconnect (plug in) the
power cord, switch on the power and wait 3 minutes to rest-
art the air conditioner to prevent tripping of the compressor
overload.
Make sure there are no curtains, blinds, or furniture blocking
the front of the air conditioner.
Clean the filter at least every 2 weeks.See the operating in-
structions section.
When the air conditioner is first turned on you need to allow
time for the room to cool down.
Check for open furnace floor registers and cold air returns.
Set the air conditioner's vent to the closed position.
See Air Conditioner Freezing Up below.
Set the fan at MED or HIGH until the ice melts.
Make sure there are no curtains, blinds, or furniture blocking
the front of the air conditioner.
Clean the filter at least every 2 weeks.
Make sure the doors/windows are closed.
Set the air conditioner's vent to the closed position.
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Troubleshooting tips