My boiler works fine for the Central Heating but for teh last couple of days there is no hot water from the boiler. The bolier does not fire up when turn on hot water taps and you just get freezing cold water. Any ideas what this could be?
Glow Worm Compact 100e
- Thread starter RoneyH
- Start date
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No this light doesn't come on. Also for about a week the only way to get hot water was by turning the bath taps on first and then the shower. If I just turned on the shower or the sink there would be no hot water until I turned on the bath taps.
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As above - I had one of these boilers and it failed in the opposite manner.
The hot water would not turn off when the tap was turned off and the boiler overheated.
Turned out to be a duff diaphram as well.
The hot water would not turn off when the tap was turned off and the boiler overheated.
Turned out to be a duff diaphram as well.
Bottom right hand side of the boiler connected to the cold inlet pipe is a black square plastic box with a couple of wires coming out of it. This is clipped to the diaphram bit - I think there are 4 screws holding the front plate on.
When you remove the black box all will become obvious - there will be a small pin sticking out of it which activates the microswitch in the black box.
When you remove the black box all will become obvious - there will be a small pin sticking out of it which activates the microswitch in the black box.
I am having bother getting front cover off. Is it screwed on? I have removed 4No. screws from under side of boiler which has let me take off bottom cover plate and loosened sides but I can't seem to get sides or front cover off & there doesn't appear to be any visible screws holding it in place. Any ideas?
When you turn on the hot tap the pin in the diaphram doesn't come out but I can pull it out and put the microswitch over the top again so the pin activates the microswitch and then the boiler fires up & i can get hot water gain. This appear to be a problem with the diaphram? If you remove the 4No. Torx screws is it easy enough to replace the diaphram? Are they handy enough to get?
Mine was fine too - no leaks etc but was still knackered.
When you have the front pin bit off, its worth soaking it in some kind of descaler as mine had got a bit sticky and wasn't letting the pin return sometimes.
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