3 hours ago: Will I need to replace my garden tap?

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Mend Vaillant VCW-GB-242-EH Heating Radiators

HOW CAN I FIX MY VCW-GB-242-EH?

THE FLOW THERMOMETER IS AT ZERO SO I HAVE NO HEAT IN MY RADIATORS BUT I DO HAVE HOT WATER COMING FROM THE TAPS.HOW DO I GET THE THERMO TO RISE ? PLEASE HELPANY ONE !!!!!

eRICA
February 2007
VaillantVaillant VCW-GB-242-EHHeating, Home Heating SystemsHeating Radiators Vaillant
Your Diverter Value has probably got a split diaphram. You can buy service kits for about £20 or a new DV will cost about £90. You will need a plumber or heating engineer to replace it. It should take longer than 1.5 hours to do.
To check if it's your DV, ensure your pressure is at least 1 bar, then try to operate the microswitch attached to the DV with a screw driver. If your CH should then come on.

NickA
March 2007

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Vaillant VCW-GB-242-EH: No Radiator Heat - Fix?