Carrier 42/38KCJ024713, Technical & Service Manual

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Exploded view & spare-part
25
Be in 3 minutes protection of
compressor Wait
Number Display
code
Problem What to do
1 E1 E2 E3
E4 Temperature Sensor is off or
short-circuit.
Contact service people
2 E6 Outdoor unit protection Contact service people
3 E8 Electrostatic dust collection Contact service people
4
P4
The temperature of the evaporator of
indoor unit is too low or high (For the
protection feature, the compressor
turns off automatically)
Turn off the unit, clean the
air filter, then restart the
unit. If this operation does
not work, please contact
service people.
5
P5
The temperature of condenser of the
outdoor unit is too high (For the
protection feature, the compressor
turns off automatically) Turn off the unit, check if
there is any obstacle in the
air-inlet, otherwise call the
service people.
6 P9 Defrosting protection or warm-air
controlling is off The unit will auto restart
after finishing the defrosting
or the temperature of the
Heat Exchanger of indoor
unit raise.