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ilsonbhoysparky

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Hi folks first post
Trying to repair/refurbish a CH system for a friend which had stopped working. Worked on loads of Y plans faults in the past but never seen anything like this one

Glow worm Fuel Saver 50
Drayton Programmer
Honeywell Stats and 3 port valve.
Smashed room stat replaced

The system had stopped working. Initial testing showed boiler fan wasnt working. Bench test confirmed fan faulty and fan replaced.
With new fan installed still no output to spark generator and gas valve via PCB.

Pressure Switch restrictor checked, blocked, and cleaned.Operation confirmed.

Spark Ignition now working boiler ignites boiler cycling on and off. Boiler igniting even with programmer set to off (overrun?) and kettling which suggests to me pump isnt running in this state. Pump valve and tanks all situated in loft

More work and head scratching required. Any body experienced similar
regards
ilsonbhoysparky
 
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johnnyb

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hasel5

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johnnyb

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