Have a problem i'd like your advice on.
Our boiler started tripping the electrics occasionally, and eventually blew a relay in the control centre (honeywell smartfit) - possibly a short circuit. I replaced the control centre and the same thing happened after about 20 mins of the boiler coming on. Somehow linked to the thermostat in the boiler perhaps or a short circuit?
We have a system boiler located in a downstairs kitchen, and a hot water tank + CH pump on a Y plan system upstairs in an airing cupboard. Boiler is an old Glowworm Hideaway 80.The controls are Honeywell smartfit which are all located in the airing cupboard upstairs, and there is a mains cable going through the floor/wall voids to the boiler downstairs in the kitchen.
I got another smartfit control centre and wired up everything but the boiler, and I turned on the boiler using an electric supply from the kitchen and everything ran fine (I ran it for about half an hour or so).
I suspect the cable between the boiler and the control centre has a short somewhere, and i'd like to replace it and see if that fixes things.
The problem I have is that the Honeywell smartfit control centre isn't exactly cheap to replace, and rather than go through yet another one I was thinking I might be able to put an MCB or even an RCD between the control centre and the boiler (live) with the idea that if there is another short the MCB will trip before the relay blows in the the control centre. Right now there is an FCU connected to the boiler (for isolation) and that doesn't seem to trip before the relay goes in the control centre.
Would this be workable? Also, i'm not sure if this falls under part p as technically i'm replacing a cable, but might also be changing the old style FCU at the boiler with an MCB DIN rail or RCD FCU.
This is a rough overview of the system
Our boiler started tripping the electrics occasionally, and eventually blew a relay in the control centre (honeywell smartfit) - possibly a short circuit. I replaced the control centre and the same thing happened after about 20 mins of the boiler coming on. Somehow linked to the thermostat in the boiler perhaps or a short circuit?
We have a system boiler located in a downstairs kitchen, and a hot water tank + CH pump on a Y plan system upstairs in an airing cupboard. Boiler is an old Glowworm Hideaway 80.The controls are Honeywell smartfit which are all located in the airing cupboard upstairs, and there is a mains cable going through the floor/wall voids to the boiler downstairs in the kitchen.
I got another smartfit control centre and wired up everything but the boiler, and I turned on the boiler using an electric supply from the kitchen and everything ran fine (I ran it for about half an hour or so).
I suspect the cable between the boiler and the control centre has a short somewhere, and i'd like to replace it and see if that fixes things.
The problem I have is that the Honeywell smartfit control centre isn't exactly cheap to replace, and rather than go through yet another one I was thinking I might be able to put an MCB or even an RCD between the control centre and the boiler (live) with the idea that if there is another short the MCB will trip before the relay blows in the the control centre. Right now there is an FCU connected to the boiler (for isolation) and that doesn't seem to trip before the relay goes in the control centre.
Would this be workable? Also, i'm not sure if this falls under part p as technically i'm replacing a cable, but might also be changing the old style FCU at the boiler with an MCB DIN rail or RCD FCU.
This is a rough overview of the system
