NO HOT WATER


Postby BOBAKQ » Sat Mar 22, 2008 8:49 am

WE HAVE BAXI COMBI BOILER, THE HEATING IS OK BUT THERE IS NO HOT WATER AT ALL,PLEASE HELP[/b]
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Postby htg engineer » Sat Mar 22, 2008 11:22 am

probably needs a replacement diaphragm in the pressure differential valve.

This located at the bottom left of the boiler - just behing the CH/HW selector switch, drop the front panel and when the hot tap is opened the pin should come out and operate the microswitch - if the pin doesn't come out change the diaphragm.
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Postby BOBAKQ » Sat Mar 22, 2008 9:39 pm

Do I need to turn water off or is there any water in the system I need to drain, before attempting this.
Bob
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Postby BOBAKQ » Sun Mar 23, 2008 1:55 am

HI M8 IT IS ME AGAIN, AFTER MY LAST POST THE NEON FOR THE FAN STARTED FLASHING AND NOTHING WORKS.
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Postby htg engineer » Sun Mar 23, 2008 8:41 am

You need to isolate the cold water, and drop the pressure from the boiler.

Check first - with the hot water tap on - does the pin come out ???

Have you tried resetting the boiler after the fan light came on ? turn to reset and hold for 5 seconds then let go.

If it's a Baxi HE - it'll probably be a air pressure switch at fault - not the fan
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Postby BOBAKQ » Sun Mar 23, 2008 5:11 pm

it is a baxi combi 105e
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Postby htg engineer » Mon Mar 24, 2008 10:22 am

Check first - with the hot water tap on - does the pin come out ???

Have you tried resetting the boiler after the fan light came on ? turn to reset and hold for 5 seconds then let go.
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