thanks got a gas safe man to do replace parts on his diaognostics cant get hold of him now
simon
December 2010
Why change things when you don't understand the problem?
Get it diagnosed properly instead of guessing.
You may be trying to avoid the cost of calling an RGI in, but you have cost yourself at least £80+ by fitting an unecessary pcb.
Seems like very unsound economics.
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Try fixfault.com to fix home heating systems.