top of page
Search

Richard Weedon
Feb 28, 20211 min read
Vaillant Fault Code F.70
F.70 Fault: Invalid Device Specific Number: If spare parts fitted: Display and PCB replaced at same time and DSN not reset, incorrect or...
62 views0 comments

Richard Weedon
Feb 28, 20211 min read
Vaillant Fault Code F.68
F.68 Fault: Flame signal unstable: Air in gas, gas flow pressure too low, incorrect air ratio, condensate duct blocked, ionisation flow ...
541 views0 comments

Richard Weedon
Feb 28, 20211 min read
Vaillant Fault Code F.67
F.67 Fault: Electronics/flame: Implausible flame signal, electronics defective
8 views0 comments

Richard Weedon
Feb 28, 20211 min read
Vaillant Fault Code F.65
F.65 Fault: Electronics temp.: Electronics overheating due to external influences, electronics defective
0 views0 comments

Richard Weedon
Feb 28, 20211 min read
Vaillant Fault Code F.64
F.64 Fault: Electronics/sensor: Flow or return NTC short circuited, electronics defective
16 views0 comments

Richard Weedon
Feb 28, 20211 min read
Vaillant Fault Code F.62
F.62 Fault: Fuel valve switch-off delay: Delayed shutdown of gas valve detected– Secondary light (ignition and monitoring electrode...
12 views0 comments

Richard Weedon
Feb 28, 20211 min read
Vaillant Fault Code F.61
F.61 Fault: Fuel valve actuation: The gas valve cannot be actuated– Cable harness supply line to the gas valve is defective (short to...
3 views0 comments

Richard Weedon
Feb 28, 20211 min read
Vaillant Fault Code F.57
F.57 Fault: Measuring program: Active comfort protection mode has detected a regulation fault– Ignition electrode highly corroded
40 views0 comments

Richard Weedon
Feb 28, 20211 min read
Vaillant Fault Code F.56
F.56 Safety switch-off: CO limit exceeded: Safety switch-off: CO limit exceededA component in the combustion regulation is defective–...
659 views0 comments

Richard Weedon
Feb 28, 20211 min read
Vaillant Fault Code F.54
F.54 Fault in the gas supply (in combination with F.28/F.29): There is insufficient gas supply to operate the unit – Gas isolator cock(s)...
22 views0 comments

Richard Weedon
Feb 28, 20211 min read
Vaillant Fault Code F.53
F.53 Combustion regulation fault: The combustion regulation has detected a fault – Gas flow pressure too low – Liquid gas coding...
744 views0 comments

Richard Weedon
Feb 28, 20211 min read
Vaillant Fault Code F.52
F.52 Contact fault mass flow sensor/Venturi: The mass flow sensor/Venturi is not connected electrically – The plug is not plugged in...
25 views0 comments

Richard Weedon
Feb 28, 20211 min read
Vaillant Fault Code F.49
F.49 Fault: eBUS: Short circuit on eBUS, eBUS overload or two power supplies with differ- ent polarities on the eBUS
509 views0 comments

Richard Weedon
Feb 28, 20211 min read
Vaillant Fault Code F.32
F.32 Fault: Fan: Plug on fan not correctly plugged in, multiple plug on PCB not correctly plugged in, break in cable harness, fan...
0 views0 comments

Richard Weedon
Feb 28, 20211 min read
Vaillant Fault Code F.29
F.29 Start-up failure: Ignit. unsuccessful: Gas supply temporarily stopped, flue gas recirculation, condensate duct blocked, defective...
3 views0 comments

Richard Weedon
Feb 28, 20211 min read
Vaillant Fault Code F.28
F.28 Start-up failure: Ignit. unsuccessful: Gas meter defective or gas pressure monitor has triggered, air in gas, gas flow pressure too...
0 views0 comments

Richard Weedon
Feb 28, 20211 min read
Vaillant Fault Code F.27
F.27 Safety switch-off: Flame simulation: Moisture on the electronics, electronics (flame monitor) defective, gas solenoid valve leaking
0 views0 comments

Richard Weedon
Feb 28, 20211 min read
Vaillant Fault Code F.26
F.26 Fault: Fuel valve not working: Gas valve stepper motor not connected, multiple plug on the PCB not plugged in correctly,...
998 views0 comments

Richard Weedon
Feb 28, 20211 min read
Vaillant Fault Code F.25
F.25 Safety switch-off: Flue temp. too high: Break in plug connection for optional flue gas safety temperature limiter (STB), break in...
6 views0 comments

Richard Weedon
Feb 28, 20211 min read
Vaillant Fault Code F.24
F.24 Safety switch-off: Temp. incr. too fast: Pump blocked, insufficient pump output, air in product, system pressure too low,...
4 views0 comments
bottom of page