Baxi 105e Instant Combi boiler no hot water.

Joined
2 Sep 2009
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Location
West Midlands
Country
United Kingdom
We have a Baxi 105e instant combo boiler that’s suddenly stopped producing hot water. Central heating is fine but the boiler doesn’t fire up when you turn a tap on.

If I turn the pre heat on full the boiler does fire up (hot water light flashes constantly), however I only get a small amount of hot water.

Baxi have quoted £340 to fix.

Could this be a diaphragm or is it something more expensive?
 
A service might be a good idea. Service as per the boiler manual
 
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