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Mend Vaillant Sonnet 18 Boiler Heating

what is wrong with my Vaillant Sonnet 18?

The hot water is working fine but the heating system is not working.
Can you tell me why, as it is a very old but reliable boiler and we never had any problems except British Gas keep telling us to replace it due to it's age....which we are aware of but it has been very reliable all those years and we are planning on replacing it this summer but we fill the problem might be something simple as we are getting hot water.

Mrs D. Sylvan
December 2009
VaillantVaillant Sonnet 18Heating, Home Heating SystemsBoiler Heating Vaillant
room stat or programmer fault (clock) link them out. no cost involved an if it works everyone is happy, o link out= put the one that says switch/ heating on or on a room stat usually the one numbered up 3 straight in the live. for god sakes tho power off!! before you do!! hope this helps

mac
December 2009

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Vaillant Sonnet 18: Heating Not Working - Help