Sears Kenmore 78079 Manual Del Propietário página 26

Troubleshooting
The following table describes some common problems that may be encountered with a room air conditioner. Each
problem is accompanied by several possible causes and solutions.
Problem
Unit will not turn on.
Unit repeatedly blows
fuse or trips breaker.
Unit does not
adequately cool room
or area.
Possible Cause
•
Power cord unplugged.
•
Blown fuse or tripped breaker.
•
Electrical power low ("brown out").
•
Electrical power outage.
• Compressor in 3-minute lock-out.
•
Other devices sharing circuit results in
circuit overload.
•
Incorrect fuse size or type.
•
Incorrect circuit breaker size.
•
Extension cord used to provide power.
•
Dirty air filter.
•
Optional charcoal air filter (if used) clogged.
•
Room or area not sealed.
•
Vent Control in EXHAUST position.
•
Airflow to or from unit blocked.
•
Unit improperly sized for room or area.
Solution
•
Ensure power cord is firmly plugged
into outlet.
•
Replace blown fuse; reset tripped
breaker.
•
Low voltage protection prevents
operation if supply voltage drops
below 90 VAC for 115 volt units;
171 VAC for 230 volt units. Contact
local electric utility if voltage is low.
•
Contact local electric utility.
• Wait 3 minutes for compressor start.
•
Disconnect other devices or move
devices to different circuit.
NOTE: Air conditioners labeled "Use
on Single Outlet Circuit Only" require
separate, dedicated, circuit.
•
Ensure fuse is correct size. Unit
requires time-delay fuses. •
Ensure circuit breaker is correct size.
•
Do not use an extension cord with
this air conditioner. If power cord on
air conditioner does not reach outlet,
have qualified electrician move out-
let or install new outlet closer to unit.
•
Remove and clean air filter.
NOTE: Do not operate air conditioner
with filter removed.
•
Replace charcoal filter (if desired).
NOTE: Optional charcoal filter can-
not be cleaned. Filter must be
replaced after three months use.
•
Close all doors and windows in
cooling area. Close all air vents and
ducts in area.
•
Vent Control should be in CLOSED
position whenever air conditioner is in cooling mode.
•
Remove any obstruction to airflow
from air discharge vent or return air
vent on unit.
•
Reduce cooling area (close doors or
otherwise isolate area).
NOTE: See Sizing Instructions
for information on correctly sizing
room air conditioners.
26