Mitsubishi Electric PUZ-ZM35VKA Service Manual page 36

• Refer to the following tables for details on the check codes.
[Output pattern A]
Beeper sounds Beep
OPERATION
INDICATOR
lamp flash
Off
pattern
Approx. 2.5 s
Self-check
starts
(Start signal
Number of blinks/beeps in pattern indicates the check
received)
code in the following table (i.e., n=5 for "P5")
[Output pattern B]
Beeper sounds Beep
OPERATION
INDICATOR
lamp flash
Off
pattern
Approx. 2.5 s
Self-check
starts
(Start signal
received)
[Output pattern A] Errors detected by indoor unit
Wireless remote controller
Beeper sounds/OPERATION
INDICATOR lamp flashes
(Number of times)
1
2
3
4
5
6
7
8
9
10
11
12
14
–
–
[Output pattern B] Errors detected by unit other than indoor unit (outdoor unit, etc.)
Wireless remote controller
Beeper sounds/OPERATION
INDICATOR lamp flashes
(Number of times)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1. If the beeper does not sound again after the initial 2 beeps to confirm the self-check start signal was received and
Notes:
the OPERATION INDICATOR lamp does not come on, there are no error records.
2. If the beeper sounds 3 times continuously "beep, beep, beep (0.4 + 0.4 + 0.4 seconds)" after the initial 2 beeps to confirm
the self-check start signal was received, the specified refrigerant address is incorrect.
*The check code in the parenthesis indicates PAR−3xMAA ("x" represents 0 or later).
OCH653
Beep Beep Beep Beep
st nd rd
1 2 3 n th
On On On
On
0.5 s 0.5 s 0.5 s
0.5 s
Beep Beep Beep
st nd
1 2
On On On
Approx. 3 s 0.5 s 0.5 s
Number of blinks/beeps in pattern indicates the check
code in the following table (i.e., n=5 for "U2")
Wired remote controller
Check code
P1
Intake sensor error
P2 Pipe (TH2) sensor error
P9 Pipe (TH5) sensor error
Indoor/outdoor unit communication error
E6,E7
P4 Drain sensor error/Float switch connector (CN4F) open
P5 Drain pump error
PA Forced compressor stop (due to water leakage abnormality)
P6 Freezing/Overheating protection operation
EE Combination error between indoor and outdoor units
P8 Pipe temperature error
E4, E5 Remote controller signal receiving error
– –
Indoor unit fan motor error
Pb
Indoor unit control system error (memory error, etc.)
Fb (FB)*
PL Abnormality of refrigerant circuit
Remote controller transmission error
E0, E3
E1, E2 Remote controller control board error
Wired remote controller
Check code
Indoor/outdoor unit communication error
E9
(Transmitting error) (Outdoor unit)
Compressor overcurrent interruption
UP
Open/short of outdoor unit thermistors
U3,U4
Compressor overcurrent interruption (When compressor locked)
UF
U2 Abnormal high discharging temperature and comp. surface temperature/insufficient refrigerant
Abnormal high pressure (63H operated)/Overheating
U1,Ud (UD)*
protection operation
Abnormal temperature of heatsink
U5
Outdoor unit fan protection stop
U8
Compressor overcurrent interruption/Abnormal of power module
U6
Abnormality of superheat due to low discharge temperature
U7
Abnormality such as overvoltage or voltage shortage and
U9,UH
abnormal synchronous signal to main circuit/Current sensor error
– –
– –
Others
Other errors (Refer to the technical manual for the outdoor unit.)
Beep Beep
1 st 2 nd · · · Repeated
Off On On
Approx. 2.5 s 0.5 s 0.5 s
Number of blinks/beeps in pattern indicates
the check code in the following table
Beep
rd th
3 n
On On Off
0.5 s 0.5 s Approx. 2.5 s
Symptom
Symptom
36
Beep Beep
1 st 2 nd · · · Repeated
On On On
Approx. 3 s 0.5 s 0.5 s
Number of blinks/beeps in pattern indicates
the check code in the following table
Remark
As for indoor
unit, refer to
indoor unit's
service manual.