Daikin REYQ72TAYCU Manuel D'installation page 42

Malfunction code
Main Sub code
code Master/sub 1/sub 2
01/03/05
F3
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
06/08/10
JC
07/09/11
39
Contents
Discharge temperature too high (R2T/R21T/R22T):
• Stop valves are closed.
• Reverse connection of high/low pressure gas pipe
and suction gas pipe of Branch Selector unit.
• Refrigerant shortage.
Compressor casing temperature too high (R14T):
• Stop valves are closed.
• Refrigerant shortage.
• Stop valves are closed.
• Refrigerant overcharge.
Electronic expansion valve malfunction (Branch Selec-
tor units).
Temperature sensor malfunction
(R1T)-A1P (X18A)
Temperature sensor malfunction
(R21T)-A1P (X19A)
Temperature sensor malfunction
(R22T)-A1P (X19A)
Temperature sensor malfunction
(R22T)-A1P (X19A)
Temperature sensor malfunction
(R14T)-A1P (X19A)
Temperature sensor malfunction
(R12T)-A7P (X15A)
Temperature sensor malfunction
(R10T)-A1P (X29A)
Temperature sensor malfunction
(R11T)-A7P (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)-A7P (X15A)
Temperature sensor malfunction
(R6T)-A1P (X30A)
Temperature sensor malfunction
(R13T)-A7P (X17A)
High pressure sensor malfunction: open circuit
(S1NPH)-A1P (X32A)
High pressure sensor malfunction: short circuit
(S1NPH)-A1P (X32A)
Low pressure sensor malfunction: open circuit
(S1NPL)-A1P (X31A)
Low pressure sensor malfunction: short circuit
(S1NPL)-A1P (X31A)
Solution
• Open stop valves.
• Check refrigerant amount and recharge.
• Check connection of high/low pressure gas pipe
and suction gas pipe.
• Open stop valves.
• Check refrigerant amount and recharge.
• Open stop valves.
• Check refrigerant amount and recharge.
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.
3P362438-9J English