Baxi 105e

Joined
18 Feb 2006
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Fault:

Boiler fires and heats rads with switch in DHW mode,when it fires neither DHW or CH indicator is Lit.

Not D.V or P.C.B

D.H.W switch and C.H switch do not stick,integeral timer wired correctly

:confused:
 
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A case of tracing where the current is coming from to fire it up. :?:

Sorry buddy cant help any more, Its one of them jobs you wish you was standing next to, it will get the old brain working again.
 
I will keep you posted.

One thing I am correct in thinking if the DHW switch is sticky the indicator would be lit as would the C.H am I not :confused:
 
Im with chris on this pretty sure its the primary thermistor bringing it on in frost stat mode.
 

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