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If you are having an operating problem,
check the chart to see what the cause
might be before you call for assistance.
Operating problem
Check if
What to do
Air conditioner will not run.
. Power cord is plugged into a live
circuit with proper voltage.
Firmly plug power cord into electrical
outlet. Check circuit voltage at fuse/
circuit breaker box.
. System control is turned on.
Turn System Control to a ‘Cool’ position.
. Thermostat control is set at a high
enough number to cause the air
conditioner to run.
Set Thermostat Control to a higher
number.
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Fuse has blown or circuit breaker
has tripped. Also check to see if a
time-delay fuse is being used.
Replace fuse with a time-delay fuse of
the correct capacity. Reset circuit
breaker.
Air conditioner blows fuses or
trips circuit breaker.
. Correct type and ampere fuse is used.
Use a time-delay fuse with the correct
ampere capacity.
. An extension cord is being used. Do Not use an extension cord.
. You waited 3 minutes after turning air
conditioner off before attempting to
Wart at least 3 minutes before restarting
air conditioner.
restart.
Air conditioner turns on and off
or does not cool room.
n
Filter is clean.
Follow the filter cleaning instructions in
this Guide.
. Evaporator (inside) and condenser
coils are clean.
Follow the annual maintenance
instructions in this Guide.
. Excessive moisture or heat from
cooking or showers is in cooling area.
Use exhaust venting fans to remove
moisture or heat from cooling area.
. Fan setting is too low.
Set fan setting to a higher speed.
m Thermostat setting is at high enough
number to cause the air conditioner to
Set Thermostat Control to a higher
number.
cool room.
Normal operating
sounds.
You can expect to hear the following
sounds when your air conditioner is
operating:
. Droplets of water hitting the
condenser causing a ‘pinging’ or
‘clicking’ sound. Water from normal
operation or rainfall does not harm
components, so you should not be
concerned.
. Air movement from the fan occurs
especially at high fan-speed settings.
n
Vibration sounds can be caused by
wall construction or mounting for the
air conditioner.