Carrier 42/38KCJ024713 Technical & Service Manual page 27

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