I have a main combi boiler 24he, i have hot water, when I put the heating on the light comes on and the flame comes on. About 10 seconds later the light goes out. The pump is turning and the diverter valve piston operates the switch. The pipe from the tank is hot where the sensor is located. Has anyone and ideas??
main combi boiler no central heating but hot water
- Thread starter cooperman1
- Start date
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possibly the dhw pin on the diverter valve stuck out a bit. You'd get hot water ok but not ch
The pin does move in and out when the ch is initially switched on.
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