Infiniton PAC-CS75 - Intelligent Error Detection; Common Failures and Diagnosis

18
Common Failures and Diagnosis
Error-detecting code
Multi-functional defection
E1
Error of the coil‟s temperature sensor
E2
Error of indoor temperature sensor
E4
Anti-freezing protection: temperature of the coil is too low and the whole A/C is
off. When temperature excesses 8℃ ,the protection is released and previous
working state is recovered.
TROUBLE-SHOOTING
The following table lists the common faults and maintenance methods of this series of portable
A/C. When the machine is in abnormal operation, the following
table can be used for simple diagnosis and maintenance. If it still can not be solved, please contact
professional maintenance personnel.
TROUBLE
CAUSE
SOLUTION
The A/C
doesn‟t work
No display
Reset circuit breaker on AC cord
The display “panel”displays “FL”
Restart the A/C after power off and
draining, then it will become normal
Time OFF function is started
The A/C can be restarted 3 minutes
after being turning off
The A/C
starts frequently
Direct sunlight
Draw the curtain
Doors and windows keep open; there
are lots of people or heat source in
room
Close doors and windows,
remove heat source
Filter screen is very dirty
Clean or replace it
Air inlet or air outlet is blocked
Remove the stem
Big noise of
the A/C
The A/C is placed unevenly
Place it at even and firm ground, avoid
shaking
The compressor
doesn‟t work
Its delay protection is started
Wait for 3min, turn on after
temperature decreases
Intelligent Error Detection