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Mend Vaillant 637e Home Heating Systems

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Mend Vaillant 637e Luke Warm

Cool radiators and luke warm water.Vaillant compact 637e?

I have a Vaillant compact 637e. It seem to be working OK as it's running and there are no fault codes, but my radiant arn't getting very hot and my water isn't as warm as it has been in the past.....can any one tell me what's wrong?

Mark NVC
December 2009
VaillantVaillant 637eHeating, Home Heating SystemsLuke Warm Vaillant

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Find out how to mend Vaillant 637e home heating systems