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- 25 Sep 2015
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hi, i have a grant combi 90 boiler with a fault. The central heating works ok but there is no flow from the hot water taps. There is no water flow at all at any hot tap. If i push a matchstick into the microswitch on the front of the diverter valve then the boiler fires up. The pin on the diverter doesnt seem to move out though when i turn on a tap?
I took out the diverter valve, blending valve and plate heat exchanger and cleaned all 3 with vinegar, (there was limescale evidence) but it hasnt made any difference. I also took the diverter apart but couldnt see any holes in the diaphragm.
Please can anyone tell me whats wrong?
Thanks, will
I took out the diverter valve, blending valve and plate heat exchanger and cleaned all 3 with vinegar, (there was limescale evidence) but it hasnt made any difference. I also took the diverter apart but couldnt see any holes in the diaphragm.
Please can anyone tell me whats wrong?
Thanks, will