Troubleshooting Tips - Midea MWA12CR71 User Manual

Troubleshooting Tips

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
Wall plug disconnected. Push plug firmly into wall outlet.
House fuse blown or circuit breaker tripped. Replace fuse with time delay type or
reset circuit breaker.
Air conditioner
does not start Plug current device tripped. Press the RESET button.
Control is OFF. Turn control ON and set to desired setting.
Unit turned off and then on quickly. Turn unit off and wait 3 minutes before restarting.
Room temperature below 17°C (62°F). Cooling may not occur until room
temperature rises above 17°C (62°F).
Temperature sensing element touching cold coil, located behind air filter. Straighten
Air from unit
tube away from coil.
does not feel cold
enough
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.
Air conditioner Outdoor temperature below 18°C (64°F). To defrost the coil, set FAN ONLY mode.
cooling, but room
Air filter may be dirty. Clean filter. Refer to Care and Cleaning section. To defrost, set
is too warm- ice
to FAN ONLY mode.
forming on
Thermostat set too cold for night-time cooling. To defrost the coil, set to FAN ONLY
cooling coil behind
mode. Then, set temperature to a higher setting.
decorative front.
Air filter may be dirty. Clean filter. 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 conditioner
cooling, but room
Air directional louvers positioned improperly. Position louvers for better air distribution.
is too warm- NO
Front of units is blocked by drapes, blinds, furniture, etc. - restricts air distribution.
ice forming on
Clear blockage in front of unit.
cooling coil behind
decorative front
Doors, windows, registers, etc. Open- cold air escapes. Close doors, windows, registers.
Unit recently turned on in hot room. Allow additional time to remove "stored heat"
from walls, ceiling, floor and furniture.
Air conditioner Dirty air filter- air restricted. Clean air filter.
turns on and off
Outside temperature extremely hot. Set FAN speed to a higher setting to bring air
rapidly
past cooling coils more frequently.
Air movement sound. This is normal . If too loud, set to a slower FAN setting.
Noise when unit is
cooling
Window vibration - poor installation. Refer to installation instructions or check with installer.
Water dripping Improper installation. Tilt air conditioner slightly to the outside to allow water
INSIDE when unit drainage.
is cooling Refer to installation instructions - check with installer."
Water dripping Unit removing large quantity of moisture from humid room. This is normal during
OUTSIDE when excessively humid days.
unit is cooling
Remote sensing Remote control not located within range. Place remote control within 20 feet &
deactivating 180°, radius of the front of the unit.
prematurely
Remote control signal obstructed. Remove obstruction.
(some models)
Room too cold Set temperature too low. Increase set temperature.
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