THROUGH-THE-WALL AIRCONDITIONER Use & Care Guide

Troubleshooting
Listed in the chart below are the most common
problems consumers run into with their air
conditioners. Please read through this chart
before calling for service. It could save you the
cost of a service call.
PROBLEM
Unit won’t run.
CHECK IF
l Power cord is plugged into a live
circuit with proper voltage.
WHAT TO DO
l Firmly plug power cord into
electrical outlet. Check circuit
voltage at fuse/circuit breaker box.
l Fuse has blown or circuit breaker has
l Replace fuse with a time-delay
tripped. Also, check if a time-delay fuse of the correct capacity. Reset
fuse has been used.
circuit breaker.
l Fan Control is set to OFF.
l Set Fan Control to another
setting.
l Local power has failed. l Wait for power to be restored.
Unit blows fuses or
l Time-delay fuse being used is of
trips circuit breaker.
l Replace fuse with a time-delay
correct capacity. fuse of the correct capacity.
l An extension cord is being used.
l Do not use an extension cord with
this or any other appliance.
l Cooling circuit was turned off and on l Wait at least three minutes after
again quickly.
turning cooling circuit off before
trying to restart unit.
Unit turns on and
off, OR does not
cool room.
l Filter is dirty.
l Inside evaporator coils and
outside condenser coils are dirty.
l There is excessive heat or moisture
in room.
l Fan speed is too low.
l Thermostat setting is too low.
l Clean filter. (See page 13.)
l Clean coils. (See page 14.)
l Use exhaust fans to reduce room
heat, or set Exhaust Vent Control
to CLOSED to reduce moisture.
l Set Fan Control to a higher
setting.
l Set Thermostat Control to a colder
setting
Normal operating sounds . . .
When your room air conditioner is operating
normally, you will hear sounds such as:
l Droplets of water hitting the condenser, causing
a “pinging” or “clicking” sound. Water droplets
help to cool the condenser.
l Air movement from the fan, especially on high
fan speed settings.
l Clicks from the cooling cycle.
Sounds also may be caused by house construc-
tion - such as vibration of the unit due to wall
construction or unsteady window mounting area.
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