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- 8 Aug 2006
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Hi,
My Alpha 240e is having problems with DHW at the moment - it has been going on for a month or so - I would be very grateful for any advice!
Basically, the boiler will not produce properly hot DHW unless the CH is on and the radiators have heated up. CH is absolutely fine. The boiler appears to be quite old and we haven't had a service yet as we are quite newly moved in.
The boiler seems to be supposed to produce about 9.5 l/min with 35degree rise; max DHW should be 62degrees. I have tested the flow rate with CH on and it does achieve this.
Cold water temp is 9degrees.
At present, set to 'DHW and CH' with the CH off I am barely getting hot water from the tap at 30degrees at 9.5 l/min.
Set to 'DHW only' I'm getting a maximum of 45degrees out of the tap on a very slow flow.
The neon lights on the front of the boiler seem to indicate that everything is functioning as it should according to the instructions, but the overheat thermostat light comes on for a split second when the burner lights and then turns off again - nothing about this in the instructions so don't know if normal? - this seems to only happen when calling for DHW when set to 'DHW and CH' but with CH off. Might be a bit of a red herring?
Thanks v much in advance for any help!
My Alpha 240e is having problems with DHW at the moment - it has been going on for a month or so - I would be very grateful for any advice!
Basically, the boiler will not produce properly hot DHW unless the CH is on and the radiators have heated up. CH is absolutely fine. The boiler appears to be quite old and we haven't had a service yet as we are quite newly moved in.
The boiler seems to be supposed to produce about 9.5 l/min with 35degree rise; max DHW should be 62degrees. I have tested the flow rate with CH on and it does achieve this.
Cold water temp is 9degrees.
At present, set to 'DHW and CH' with the CH off I am barely getting hot water from the tap at 30degrees at 9.5 l/min.
Set to 'DHW only' I'm getting a maximum of 45degrees out of the tap on a very slow flow.
The neon lights on the front of the boiler seem to indicate that everything is functioning as it should according to the instructions, but the overheat thermostat light comes on for a split second when the burner lights and then turns off again - nothing about this in the instructions so don't know if normal? - this seems to only happen when calling for DHW when set to 'DHW and CH' but with CH off. Might be a bit of a red herring?
Thanks v much in advance for any help!