Troubleshooting – Campomatic AC50MF User Manual
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Before calling for service, please review the following list of common problems and solutions.
The temperature setting is too high
or too low.
Air conditioner
does not
cool or
heat well
Air conditioner
does not
cool or
heat at all
The air filter is clogged with dust
Doors or windows are open
The air inlet or outlet of the outdoor
unit is blocked
The air inlet or outlet of the outdoor
unit is blocked
Clear up the block first, then begin to
operate.
Close the doors or windows
Clear up the block
Clean the filter
Set a more comfortable temperature.
Wait or cancel timer setting
Change the batteries.
Solutions
Possible Cause
Problem
Air conditioner
does not
operate at all
The timer is set.
The batteries of the remote control are exhausted
Power failure
The power supply is disconnected.
The power fuse is blown.
Three-minute protection feature
Unappropriated temperature setting
Wait for a while
Set the temperature properly
Wait for power restoring
Switch on the main power switch
Change the fuse
CAUTION:
When the power cord is to be replaced, replacement work shall be performed by authorized
personnel only.
TROUBLESHOOTING
What to do
Display
code
Number
Problems
1
2
3
4
5
6
E1、 E2
E3、 E4
E6
E8
P4
P5
P9
Temperature Sensor is off or
short-circuit.
Contact service people
Contact service people
Contact service people
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)
Turn off the unit, clean the air filter,
then restart the unit. If this operation
does not work, please contact service
people.
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.
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.