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Mend Vaillant Home Heating Systems

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Mend repair fix Vaillant home heating systems

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Vaillant timeswitch 150 analogue unit (clock stopped?

vaillant timeswitch 150 analogue unit. the clock has stopped working.
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Worcester boiler dripping water, can I just tight the screw? The icon next to the valve looks like radiators... [Read more]
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Following a F22 fault where we had no heating and only cold water from the hot water tap, I topped up the syst... [Read more]
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My temp is showing on the reciever alot higher than it actually is & each time I turn the temp up to get the h... [Read more]
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Vaillant 242 E - Burners not firing?

Another old boiler where the themostat kicksin the motors start but the flames don't light.
At onepoint we could turn down the heating to get hot water but now we just get the motors but not the flame.

Robert W
January 2010
VaillantHeating, Home Heating SystemsVaillant Firing Boiler
fault on these boilers is the main gas solenoid fails part no 17 0365.this also blows the resistor on the board part no 13 0391.total cost of around £200.There should be 200vdc from the board to the gas valve(grey plug).

paul b gas enginneer
March 2010
May be the heat exchanger needs cleaning.

ab
February 2010
air pressure switch faulty

adam d
January 2010

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