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NO HOT WATER
Posted: Sat Mar 22, 2008 8:49 am
by BOBAKQ
WE HAVE BAXI COMBI BOILER, THE HEATING IS OK BUT THERE IS NO HOT WATER AT ALL,PLEASE HELP[/b]
Posted: Sat Mar 22, 2008 11:22 am
by htg engineer
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.
Posted: Sat Mar 22, 2008 9:39 pm
by BOBAKQ
Do I need to turn water off or is there any water in the system I need to drain, before attempting this.
Bob
Posted: Sun Mar 23, 2008 1:55 am
by BOBAKQ
HI M8 IT IS ME AGAIN, AFTER MY LAST POST THE NEON FOR THE FAN STARTED FLASHING AND NOTHING WORKS.
Posted: Sun Mar 23, 2008 8:41 am
by htg engineer
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
Posted: Sun Mar 23, 2008 5:11 pm
by BOBAKQ
it is a baxi combi 105e
Posted: Mon Mar 24, 2008 10:22 am
by htg engineer
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.