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mike live
11-10-2010, 08:40 PM
would any one have a fault code list for a vaillant climatherm? the model code for indoor unit being va5-130-hk1
this is a 407c unit.
getting what i think is 11 flashes on led 1 and led 3 fully lit up.
this is all on the indoor board(also its a wirless remote)
tried speaking to vaillant tech, been very helpful but cannot seam to gain any information on the old 407c series and there fault codes.
not really had any dealings with vaillant ac before so not to sure weather the leds flahing inside just mean check the outdoor leds.
any help would be greatful

Vaillant Jay
15-10-2010, 11:40 AM
Hi Mike,
The fault code refers to an outside comms error.
Check the voltage on numbers 3 cables it should be between 20 and 90 volts.
If it stays stable at 20 volts a new outdor PCB is required.
If you still need assistance please drop me a line on
Jason.allen@vaillant.co.uk