Thanks to you all for your help! Hopefully the engineer will be here soon. The pump now appears to be dead.
Potterton fault has the repairmen stumped!
- Thread starter vmcd28
- Start date
Not sure what you mean?
I know nothing about such things but have experience repairing other things, to me this sounds like a sensor/electronics fault rather than mechanical.
Tends to be the case when you get "ghost" errors, just like on a car, as they've not looked at the electronics or sensors (from what you said they've replaced in your first post) it might be worth a punt.
Tends to be the case when you get "ghost" errors, just like on a car, as they've not looked at the electronics or sensors (from what you said they've replaced in your first post) it might be worth a punt.
Thanks - yes, that's what I've often wondered. It has happened on and off for years now, and usually it starts working again for no apparent reason. But the random reason for it happening (windows open) just makes no sense.
Although, as I said, I feel that the pump is now deid, so that will need replaced!
Although, as I said, I feel that the pump is now deid, so that will need replaced!
OK, so today's verdict is that the diaphragm has burst, so a new one has been ordered and will be fitted next week. He has bypassed it in the meantime so we have hot water till then.
It was related to the pump, I think he said.
I dont think Homeserve have ever had the parts they require in their van - they always have to order them. Very odd indeed.
I dont think Homeserve have ever had the parts they require in their van - they always have to order them. Very odd indeed.
Are you talking about the diaphragm in the air pressure sensor ? If you are then you should :-
[1] NOT use the boiler
[2] report that "engineer" for creating a hazerd
The differential air pressure switch ensures there is enough air flowing from the fan for complete combustion. If the fan fails to deliver enough air the switch will not be operated by the diagram and the gas will be shut off.
With the switch by-passed failure of the fan will not be detected and gas will continue to flow without enough air to ensure proper combustion. Gas and toxic fumes will be created.
he said it was related to the pump
so, what has he done, then, to make the boiler work...? I'm really confused now.
Dont worry about Bernard, he is not a boiler engineer!
I expect it is the pump proving switch which has failed and as its not tested by the design can be left in the made position to enable the boiler to continue working, albeit at the risk of no protection should the system pressure fail.
Tony
I expect it is the pump proving switch which has failed and as its not tested by the design can be left in the made position to enable the boiler to continue working, albeit at the risk of no protection should the system pressure fail.
Tony
No I am not a registered boiler engineer. But I have been involved in the repair, test and design improvement of boiler control equipment.
Any one who bypasses a sensor in a boiler other than for short term and supervised fault diagnosis has no right to be working on boilers.
Pressure switches, be they on air flow or water flow, are safety devices put there to detect faults that would make continued use of the equipment hazardous.
Any one who bypasses a sensor in a boiler other than for short term and supervised fault diagnosis has no right to be working on boilers.
Pressure switches, be they on air flow or water flow, are safety devices put there to detect faults that would make continued use of the equipment hazardous.
Sometimes this forum f*cking amazes me
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