Hi,
Our Worcester 350 boiler has been shutting down fully over the last few days and then restarting itself....
- All panel lights go out, including the controller display.
- I've not needed to press the overheat reset button on the top.
- Pressure is 1 bar - not changed, no low pressure light (which from memory doesn't cause the controller to power off).
It is not clear how long it stays 'off', but it powers up again itself.
As the controller clock resets, I think there were a few resets after maybe 15mins of running ch+dhw.
Last night, I caught it in a completely off state - switching the power off/on did not bring it back to life. Tried this again a few minutes later (after checking the mains fuse), and it was working again.
Trying some diagnostics today:
- full dhw and no ch appears okay
- dhw switches on/off as expected
- ch on with lowest temperature is running okay.
Not yet tried max ch and then using dhw as well - as it is running, I'd like a warmer house and a shower.
There are a bunch of posts re the overheat reset button, but mine has not tripped. Is there anything else I can sensibly test before calling out an RGI?
I've got the cover off, but don't want to touch the combustion chamber.
(Given the controller clock resets, but not the ch presets then the CH side is a PITA - I see there is a hack to add nicads to keep the clock
Our Worcester 350 boiler has been shutting down fully over the last few days and then restarting itself....
- All panel lights go out, including the controller display.
- I've not needed to press the overheat reset button on the top.
- Pressure is 1 bar - not changed, no low pressure light (which from memory doesn't cause the controller to power off).
It is not clear how long it stays 'off', but it powers up again itself.
As the controller clock resets, I think there were a few resets after maybe 15mins of running ch+dhw.
Last night, I caught it in a completely off state - switching the power off/on did not bring it back to life. Tried this again a few minutes later (after checking the mains fuse), and it was working again.
Trying some diagnostics today:
- full dhw and no ch appears okay
- dhw switches on/off as expected
- ch on with lowest temperature is running okay.
Not yet tried max ch and then using dhw as well - as it is running, I'd like a warmer house and a shower.
There are a bunch of posts re the overheat reset button, but mine has not tripped. Is there anything else I can sensibly test before calling out an RGI?
I've got the cover off, but don't want to touch the combustion chamber.
(Given the controller clock resets, but not the ch presets then the CH side is a PITA - I see there is a hack to add nicads to keep the clock