Troubleshooting - Midea F Series Manual

8 Troubleshooting

In general, possible trouble is classified in three kinds. One is called Starting Failure which is caused
from an electrical defect, another is ineffective Air Conditioning caused by a defect in the refrigeration
circuit and improper application, and the other is called the Structure Damage.
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.
Selector Control in OFF position. Turn selector to the desired FAN or COOL setting.
Air conditioner
Unit turned off by moving thermostat to a higher number and then immediately
does not start
turning back to a colder number. Wait approximately 3 minutes. Listen for compressor to start.
Unit turned off and then on too quickly. Turn unit off and wait 3 minutes before restarting.
Thermostat set too low. Adjust thermostat to higher number for cooling.
Turn selector to a higher COOL position.
Thermostat set too warm. Set thermostat to colder temperature.
Air from unit does
Room temperature below 18℃(64℉). Cooling may not occur until room temperature rises
not feel cold
above 18℃(64℉).
enough
Temperature sensing tube touching cold coil, located behind air filter. Straighten tube away
from coil.
Outdoor temperature below 18℃(64℉). To defrost the coil, set selector to FAN
Air conditioner
position. Then, set thermostat to warmer position.
cooling, but room
is too warm- ice Air filter may be dirty. Clean filter. Refer to Care and Cleaning section. To defrost, set selector
forming on cooling to FAN.
coil behind
Thermostat set too cold for night-time cooling. To defrost the coil, set selector to a FAN
decorative front.
position. Then, set thermostat to a warmer position.
Dirty air filter- air restricted. Clean air filter. Refer to Care and Cleaning section.
Air conditioner
Thermostat set too warm. Turn thermostat clockwise to a colder setting.
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.
Doors/windows/registers, etc. Open- cold air escapes. Close doors, windows, registers.
cooling coil behind
Unit recently turned on in hot room. Allow additional time to remove. Stored heat from
decorative front.
walls, ceiling, floor and furniture.
Air conditioner Dirty air filter- air restricted. Clean air filter.
turns on and off
Outside temperature extremely hot. Set to high cool to bring air past cooling coils more
rapidly
frequently.
Air movement sound. This is normal. If too loud, turn selector to lower FAN setting.
Noise when unit is
Sound of fan hitting water-moisture removal system. This is normal when humidity is high.
cooling
Close doors, windows and registers.
Window vibration - poor installation. Refer to installation instructions or check with installer.
Improper installation. Tilt air conditioner slightly to the outside to allow water drainage. Refer to
Water dripping
installation instructions - check with installer.
INSIDE when
Unit removing large quantity of moisture from humid room. This is normal during excessively
unit is cooling.
humid days.
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