TROUBLESHOOTING TIPS
Troubleshooting
T
ips
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 workmanship or materials in this appliance.
Problem
Solution
Air conditioner
does not start.
Wall plug disconnected. Push plug fi
rmly into wall outlet.
Circuit breaker tripped. Reset circuit breaker.
Check if the light on the plug is on. If it is off
, press the RESET button.
Power is OFF. Turn power ON.
Unit turned off
and then on quickly. Turn unit off
and wait 3 minutes before
restarting.
Air from unit
does not feel cold
enough.
Room temperature below 17°C (62°F). Cooling may not occur until
room temperature rises above 17°C (62°F).
Temperature sensor behind the air fi
lter is touching the cold coil. Try to move it
so it does not contact the cold coil.
Reset to a lower temperature.
Compressor shut-off
by changing modes. Wait approximately 3 minutes and
listen for compressor to restart when set in the COOL mode.
Check for potential obstructions blocking the outdoor intake/exhaust. Clear any
obstructions.
Air conditioner
cooling, but
room is too warm
- ice forming
on cooling coil
behind air filter.
Outdoor temperature below 18°C (64°F). To defrost the coil, set to FAN ONLY
mode.
Air fi
lter may be dirty. Clean fi
lter. Refer to Care and Cleaning section. To defrost,
set to FAN ONLY mode.
Thermostat set too cold for night-time cooling. To defrost the coil, set to FAN
ONLY mode. Then, set temperature to a higher setting.
Air conditioner
cooling, but room
is too warm -
NO ice forming
on cooling coil
behind air filter.
Dirty or restricted air fi
lter. Clean fi
lter. Refer to Care and Cleaning section. To
defrost, set to FAN ONLY mode.
Temperature is set too high, set temperature to a lower setting.
Air directional louvers positioned improperly. Position louvers for better air
distribution.
Front of unit is blocked by drapes, blinds, furniture, etc. - restricts air distribution.
Clear obstruction in front of unit.
Any open doors, windows, or registers may allow cold air to escape. Close any
doors, windows, or registers.
The room may be too warm. Allow additional time to remove “stored heat” from
walls, ceiling, fl
oor and furniture.
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User Manual
Summary of Contents for RAC-WK0512CMRC
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