18
en
Check code
Symptom
Remark
P1
Intake sensor error
P2
Pipe (TH2) sensor error
P9
Pipe (TH5) sensor error
E6, E7
Indoor/outdoor unit communication error
P6
Freezing/Overheating safeguard operation
EE
Communication error between indoor and outdoor units
P8
Pipe temperature error
E4
Controller signal receiving error
FL
Refrigerant leakage
FH
Refrigerant sensor error
PL
Refrigerant circuit abnormal
FB (Fb)
Indoor unit control system error (memory error, etc.)
– –
No corresponding
PB (Pb)
Indoor unit fan motor error
[Output pattern A] Errors detected by indoor unit
7. Test run
• On controller
Check code displayed in the LCD.
[Output pattern B] Errors detected by unit other than indoor unit (outdoor unit, etc.)
Note:
Operation is not possible for about 30 seconds after cancellation of function selection. (Correct operation)
For description of each LED (LED 1, 2, 3) provided on the indoor controller, refer to the following table.
Check code
Symptom
Remark
E9
Indoor/outdoor unit communication error (Transmitting error) (Outdoor unit)
For details, check the LED
display of the outdoor controller
board.
UP
Compressor overcurrent interruption
U3, U4
Open/short of outdoor unit thermistors
UF
Compressor overcurrent interruption (When compressor locked)
U2
Abnormal high discharging temperature/49C worked/insufficient refrigerant
U1, Ud
Abnormal high pressure (63H worked)/Overheating safeguard operation
U5
Abnormal temperature of heat sink
U8
Outdoor unit fan safeguard stop
U6
Compressor overcurrent interruption/Abnormal of power module
U7
Abnormality of super heat due to low discharge temperature
U9, UH
Abnormality such as overvoltage or voltage shortage and abnormal synchronous signal to main circuit/
Current sensor error
FL
Refrigerant leakage
FH
Refrigerant sensor error
Others
Other errors (Refer to the technical manual for the outdoor unit.)
• If the unit cannot be operated properly after the above test run has been performed, refer to the following table to remove the cause.
LED 1 (power for microcomputer)
Indicates whether control power is supplied. Make sure that this LED is always lit.
LED 2 (power for remote controller)
Indicates whether power is supplied to the remote controller. This LED lights only in the case of the
indoor unit which is connected to the outdoor unit refrigerant address “0”.
LED 3 (communication between indoor and outdoor units)
Indicates state of communication between the indoor and outdoor units. Make sure that this LED is
always blinking.
Symptom
Cause
Controller
LED 1, 2 (PCB in outdoor unit)
Please Wait
For about 3 min-
utes following
power-on
After LED 1, 2 are lighted, LED 2 is turned
off, then only LED 1 is lighted. (Correct
operation)
• For about 3 minutes following power-on, operation of the
controller is not possible due to system start-up. (Correct
operation)
Please Wait
→
Error code
After about 3
minutes has
expired following
power-on
Only LED 1 is lighted.
→
LED 1, 2 blink.
• Connector for the outdoor unit’s protection device is not
connected.
• Reverse or open phase wiring for the outdoor unit’s power
terminal block (L1, L2, L3)
Display messages do not appear even
when operation switch is turned ON
(operation lamp does not light up).
Only LED 1 is lighted.
→
LED 1 blinks twice,
LED 2 blinks once.
• Incorrect wiring between indoor and outdoor units (incorrect
polarity of S1, S2, S3)
• Remote controller wire short
7.3. Error code
Note:
If the unit is operated continuously during a test run, the unit stops after 2 hours.
RG79F531H01_01en.indd 18
2021/04/28 15:24:37
019
Содержание PUZ-ZM100YKA
Страница 137: ...A4_white_tombo indd 1 2018 08 09 14 11 29 137 ...
Страница 138: ...A4_white_tombo indd 1 2018 08 09 14 11 29 138 ...
Страница 139: ...A4_white_tombo indd 1 2018 08 09 14 11 29 139 ...