Daikin REYQ72TTJU Installation Manual page 44

Malfunction code
Main Sub code
code Master/sub 1/sub 2
01/02/03
F3
01/03/05
20/21/22
02
F6
01
F9
02
05
01/02/03
H9
16/22/28
J3
17/23/29
18/24/30
19/25/31
47/49/51
48/50/52
01/03/05
J5
18/19/20
01/02/03
J6
08/09/10
11/12/13
01/02/03
J7
06/07/08
01/02/03
J8
08/09/10
11/12/13
01/02/03
J9
11/12/13
06/08/10
JA
07/09/11
41
Contents
• Reverse connection of HP/LP gas pipe and suction
gas pipe of the BS unit
Discharge temperature too high (R2T/R21T/R22T):
• Stop valve closed
• Refrigerant shortage
Compressor casing temperature too high (R14T):
• Stop valve closed
• Refrigerant shortage
• Refrigerant overcharge
• Stop valve closed
Electronic expansion valve malfunction (BS unit)
Temperature sensor malfunction
(R1T) – A1P (X18A)
Temperature sensor malfunction
(R2T, R21T) – A1P (X19A)
Temperature sensor malfunction
(R2T, R21T) – A1P (X19A)
Temperature sensor malfunction
(R22T) – A1P (X19A)
Temperature sensor malfunction
(R22T) – A1P (X19A)
Temperature sensor malfunction
(R14T) – A1P (X19A)
Temperature sensor malfunction
(R14T) – A1P (X19A)
Temperature sensor malfunction
(R12T) – A8P (X15A)
Temperature sensor malfunction
(R10T) – A1P (X29A)
Temperature sensor malfunction
(R11T) – A8P (X15A)
Temperature sensor malfunction
(R8T) – A1P (X29A)
Temperature sensor malfunction
(R9T) – A1P (X29A)
Temperature sensor malfunction
(R3T) – A1P (X30A)
Temperature sensor malfunction
(R7T) – A1P (X30A)
Temperature sensor malfunction
(R4T) – A1P (X30A)
Temperature sensor malfunction
(R5T) – A1P (X30A)
Temperature sensor malfunction
(R15T) – A8P (X15A)
Temperature sensor malfunction
(R6T) – A1P (X30A)
Temperature sensor malfunction
(R13T) – A8P (X17A)
High pressure sensor malfunction (S1NPH): open
circuit – A1P (X32A)
High pressure sensor malfunction (S1NPH): short
circuit – A1P (X32A)
Solution
• Check connection of HP/LP gas pipe and suction
gas pipe.
• Open stop valves.
• Check refrigerant amount+recharge unit.
• Open stop valves.
• Check refrigerant amount+recharge unit.
• Check refrigerant amount+recharge unit.
• Open stop valves.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
3P362438-3H English