Trianco combi oil boiler fault

Joined
8 Sep 2011
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Location
Argyll
Country
United Kingdom
I have a Trianco eurostar 90 combi boiler with a fault;
1. From stone cold works first time every time.
2. Will not fire up boiler when radiators are cool, fan/flue is running but boiler fails to come on.

I changed boiler stats but no change in symptoms, any pointers on what to do next very much appreciated. Desperate for some ideas.
 
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Is the burner lock out lamp on?
If its not, you are looking at timer or thermostat issues really - both within the house and within the boiler casing itself. The burner isn't getting the 'calling for heat' command, it seems.
John :)
 
Thanks John,

the burner lockout light is not on, how would I test/overide the timer?

Strange that the flue/fan is running as if it should be firing up.
I agree that thermostats seemed the obvious problem and I have swapped them for new ones and the problem still appears.

Is new time clock best option? to test

Appreciate the help I'm on a small Island in the west coast of scotland and quickly running out of ideas as I will need to get this sorted for next winter or ne boiler beckons.
 
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