Fisher FSAI-CP-90BE3 Service Manual page 53

Display Method of Indoor Unit
Indicator Display (during
blinking, ON 0.5s and OFF
Dual-8
Malfunction
No.
0.5s)
Code
Name
operation
Display
Indicator
Malfunction
of complete
45 U5
units current
detection
The four-way
46 valve is U7
abnormal
Frequency
47 limiting
(power)
Compressor
48 is open-
circuited
The
temperature
49 for turning
on the unit is
reached
Frequency
limiting
50
(module
temperature)
Malfunction
of detecting
51 JF
plate(WIFI)
50
Cool Heating
Indicator Indicator
During cooling and drying
operation, the compressor will
stop while indoor fan will operate;
During heating operating, the complete unit
will stop operation.
If this malfunction occurs during heating
operation, the complete unit will stop
operation.
A/C status
Theres circuit malfunction on outdoor units
control panel AP1, please replace the
outdoor units control panel AP1.
1.Supply voltage is lower than AC175V;
2.Wiring terminal 4V is loosened or broken;
3.4V is damaged, please replace 4V.
Service Manual
Possible Causes
Installation and Maintenance