Mitsubishi Electric PEY Series, Руководство по обслуживанию

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29
HWE1305A
TROUBLESHOOTING
• Refer to the following tables for details on the check codes.
[Output pattern A]
OPERATION
INDICATOR
lamp flash
pattern
Beep Beep Beep Beep Beep Beep Beep
Off
Approx. 2.5 sec.
On
0.5 sec.
On
0.5 sec.
On
0.5 sec.
On
0.5 sec.
Off
Approx. 2.5 sec.
On
0.5 sec.
On
0.5 sec.
· · · Repeated
Number of flashes/beeps in pattern indicates the check
code in the following table (i.e., n=5 for “P5”)
Number of flashes/beeps in pattern indicates
the check code in the following table
n
th
1
st
2
nd
3
rd
1
st
2
nd
Self-check
starts
(Start signal
received)
Beeper sounds
[Output pattern B]
OPERATION
INDICATOR
lamp flash
pattern
Beep Beep Beep Beep Beep
Beep Beep
Off
Approx. 2.5 sec.
On
Approx. 3 sec.
On
0.5 sec.
On
0.5 sec.
On
0.5 sec.
On
0.5 sec.
Off
Approx. 2.5 sec.
On
Approx. 3 sec.
On
0.5 sec.
On
0.5 sec.
· · · Repeated
Number of flashes/beeps in pattern indicates the check
code in the following table (i.e., n=5 for “U2”)
Number of flashes/beeps in pattern indicates
the check code in the following table
n th 1 st 2 nd 3 rd 1
st
2
nd
Self-check
starts
(Start signal
received)
Beeper sounds
[Output pattern A] Errors detected by indoor unit
Wireless remote controller Wired remote controller
Symptom Remark
Beeper sounds/OPERATION
INDICATOR lamp flashes
(Number of times)
1
Check code
1 P1 Intake sensor error
–
2
P2 Pipe (TH2) sensor error
P9 Pipe (TH5) sensor error
3 E6,E7 Indoor/outdoor unit communication error
4 P4 Float switch connector open
5
P5 Drain pump error(due to water leakage abnormality)
PA Forced compressor stop
6 P6 Freezing/Overheating protection operation
7 EE Communication error between indoor and outdoor units
8 P8 Pipe temperature error
9 E4, E5 Remote controller signal receiving error
10 – –
11 – –
12 Fb (FB) *3 Indoor unit control system error (memory error, etc.)
13 PL Refrigerant circuit abnormal
– E0, E3 Remote controller transmission error
– E1, E2 Remote controller control board error
[Output pattern B] Errors detected by unit other than indoor unit (outdoor unit, etc.)
Wireless remote
controller
Wired remote
controller
Symptom Remark
Beeper sounds/OPERATION
INDICATOR lamp flashes
(Number of times)
1
Check code
1 E9
Indoor/outdoor unit communication error
(Transmitting error) (Outdoor unit)
For details, check
the LED display of
the outdoor
controller board.
As for outdoor unit,
refer to outdoor
unit's service
manual.
2 UP Compressor overcurrent interruption
3 U3,U4 Open/short of outdoor unit thermistors
4 UF Compressor overcurrent interruption (When compressor locked)
5 U2
Abnormal high discharging temperature/49C operated/insufficient
refrigerant
6 U1,Ud (UD) *3 Abnormal high pressure (63H operated)/Overheating protection operation
7 U5 Abnormal temperature of heat sink
8 U8 Outdoor unit fan protection stop
9 U6 Compressor overcurrent interruption/Abnormal of power module
10 U7 Abnormality of superheat due to low discharge temperature
11 U9,UH
Abnormality such as overvoltage or voltage shortage and abnormal
synchronous signal to main circuit/Current sensor error
12 – –
13 – –
14 Others Other errors (Refer to the technical manual for the outdoor unit.)
*1 If the beeper does not sound again after the initial 2 beeps to confirm the self-check start signal was received and 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 sec.)” after the initial 2 beeps to confirm the self-check start
signal was received, the specified refrigerant address is incorrect.
*3 The check code in the parenthesis indicates PAR-30MAA model.