Error Codes - Vaillant climaVAIR V 7-025 NW Installation Manual

13 Error Codes

13 Error Codes
INDOOR
E1
E2
With the malfunction, LED1 on the outdoor mainboard
F21
blinks 10 times at frequency of 1 Hz
With the malfunction, LED1 on the outdoor mainboard
F25
blinks 13 times at frequency of 1 Hz
With the malfunction, LED1 on the outdoor mainboard
F6 blinks once at 12 times of 1 Hz and interval of 2 seconds or
so.
With the malfunction, LED1 on the outdoor mainboard
F7 blinks once at 11 times of 1 Hz and interval of 2 seconds or
so.
With the malfunction, LED1 on the outdoor mainboard
E7
blinks 15 times
With the malfunction, LED1 on the outdoor mainboard
F11
blinks17or18 times at frequency of 1 Hz
With the malfunction, LED1 on the outdoor mainboard
F4
blinks 8 times at frequency of 1 Hz
22
OUTDOOR
/
/
POSSIBLE REASONS
1) Room-temperature sensor may be faulty
2) Indoor PCB may be faulty
1) Heat-exchange sensor may be faulty
2) Indoor PCB may be faulty
1) Defrosting temperature sensor may be faulty
2) Outdoor PCB may be faulty
1) Exhaust temperature sensor may be faulty
2) Outdoor PCB may be faulty
1) Ambient temperature sensor may be faulty
2) Outdoor PCB may be faulty
1) Suction temperature sensor may be faulty
2) Outdoor PCB may be faulty
1) The outdoor mainboard may be damp and needs drying
off
2) The indoor mainboard may be damp and needs drying
off
3) The linking cable between the indoor and outdoor units
connections are faulty or the core wires are not well
insulated
4) The indoor PCB may be faulty
5) The outdoor PCB may be faulty
1) The wiring of compressor is incorrect or the connection is
faulty
2) The SPDU may be faulty
3) Compressor may be damaged.
1) The refrigerant may have been leaked during installation,
or there may be leakage in the piping system.
2) Exhaust temperature sensor may be faulty
3) The outdoor mainboard is damaged and needs be
replaced
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