Avoid Service Checklist

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 workman-

 

ship or materials in this appliance.

OCCURRENCE

SOLUTION

Air conditioner will not operate.

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 ON (some models) or the desired FAN or COOL

 

setting.

 

 

 

 

Unit turned off by moving thermostat to a higher number and then immediately 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.

 

 

Air from unit does not feel cold

Turn selector to a higher FAN or COOL position

enough.

 

 

Thermostat set too warm. Set thermostat to colder temperature.

 

 

 

 

Room temperature below 70°F (21°C). Cooling may not occur until room temperature rises above

 

70°F (21°C).

 

 

 

Temperature sensing tube touching cold coil, located behind air filter. Straighten tube away from coil.

 

 

Air conditioner cooling, but room is

Outdoor temperature below 70°F (21°C). To defrost the coil, set selector to FAN position. Then,

too warm — ice forming on cooling

set thermostat to warmer position.

coil behind decorative front.

 

 

Air filter may be dirty. Clean filter. Refer to Care and Cleaning section. To defrost, set selector to

 

 

FAN.

 

 

 

Thermostat set too cold for night-time cooling. To defrost the coil, set selector to a FAN position.

 

Then, set thermostat to a warmer position.

 

 

Air conditioner cooling, but room is

Dirty air filter — air restricted. Clean air filter. Refer to Care and Cleaning section.

too warm — NO ice forming on

 

 

Thermostat set too warm. Turn thermostat clockwise to a colder setting.

cooling coil behind decorative front.

 

 

 

Thermostat set on low number. Turn thermostat to higher number.

 

 

 

Air directional louvres positioned improperly. Position louvres for better air distribution.

 

 

 

Front of unit is blocked by drapes, blinds, furniture, etc. — restricts air distribution. Clear blockage

 

in front of unit.

 

 

 

Doors, windows, registers, etc. open — cold air escapes. Close doors, windows, registers, etc.

 

 

 

Unit recently turned on in hot room. Allow additional time to remove “stored heat” from walls,

 

ceiling, floor and furniture.

 

 

Air conditioner turns on and off

Dirty air filter — air restricted. Clean air filter.

rapidly.

 

 

Outside temperature extremely hot. Set FAN on high speed to bring air past cooling coils more

 

 

frequently.

 

 

Noise when unit is cooling.

Air movement sound. This is normal. If too loud, turn selector to lower FAN setting.

 

 

 

Sound of fan hitting water-moisture removal system. This is normal when humidity is high. Close

 

doors, windows and registers.

 

 

Water dripping INSIDE when unit is

Improper installation. Refer to installation instructions — check with installer.

cooling.

 

 

 

 

Water dripping OUTSIDE when unit is

Unit removing large quantity of moisture from humid room. This is normal during excessively

cooling.

humid days.

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Carrier 52F manual Avoid Service Checklist, Occurrence Solution

52F specifications

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