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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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boiler fires on and off constantly - Biasi Riva
For both h/w and c/h the boiler will fire up for 3 seconds then stop
for two seconds, fire up for 3 seconds then stop.. constantly. This appears to have occurred overnight. It is a Biasi Riva, five years old. I replaced the h/w heat exchanger a year ago due to limescale, but even before then the c/h was fine and the problem was gradual. Any ideas very welcome. Please post to group, I do not check that email address. Many Thanks J |
#2
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boiler fires on and off constantly - Biasi Riva
Jon wrote:
For both h/w and c/h the boiler will fire up for 3 seconds then stop for two seconds, fire up for 3 seconds then stop.. constantly. This appears to have occurred overnight. It is a Biasi Riva, five years old. From cold, or only when hot? |
#3
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boiler fires on and off constantly - Biasi Riva
raden wrote:
In message , Jon writes For both h/w and c/h the boiler will fire up for 3 seconds then stop for two seconds, fire up for 3 seconds then stop.. constantly. This appears to have occurred overnight. It is a Biasi Riva, five years old. I replaced the h/w heat exchanger a year ago due to limescale, but even before then the c/h was fine and the problem was gradual. Any ideas very welcome. Please post to group, I do not check that email address. Have you checked a) the temperature sensor, and b) that you don't have a blockage restricting the flow, or your pump has failed???? If the pump had failed, then running for 3/5ths of the time would result in obvious boiling. |
#4
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boiler fires on and off constantly - Biasi Riva
In message , Jon
writes For both h/w and c/h the boiler will fire up for 3 seconds then stop for two seconds, fire up for 3 seconds then stop.. constantly. This appears to have occurred overnight. It is a Biasi Riva, five years old. I replaced the h/w heat exchanger a year ago due to limescale, but even before then the c/h was fine and the problem was gradual. Any ideas very welcome. Please post to group, I do not check that email address. Have you checked a) the temperature sensor, and b) that you don't have a blockage restricting the flow, or your pump has failed???? -- geoff |
#5
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boiler fires on and off constantly - Biasi Riva
Ian Stirling wrote in message ...
raden wrote: In message , Jon writes For both h/w and c/h the boiler will fire up for 3 seconds then stop for two seconds, fire up for 3 seconds then stop.. constantly. This appears to have occurred overnight. It is a Biasi Riva, five years old. I replaced the h/w heat exchanger a year ago due to limescale, but even before then the c/h was fine and the problem was gradual. Any ideas very welcome. Please post to group, I do not check that email address. Have you checked a) the temperature sensor, and b) that you don't have a blockage restricting the flow, or your pump has failed???? If the pump had failed, then running for 3/5ths of the time would result in obvious boiling. - From cold - The flow is still good - How do I check the temperature sensor - How do I check the pump? Thanks J |
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