Boiler - trouble shooting
Hi my boiler blown a fuse earlier today (the 2A in the boiler) I replaced it for new, I tried fitting a new digital thermostat and this happened, so I put everything back to the way it was (old thermostat back on, replaced fuses and put the trip switch back on). My boiler will still not come back on, there's power going in to the boiler and there's power back to the thermostat but the digital temp and lights are still not coming on? Could anyone help do you think it could be the selector switch at fault or circuit board problem?or is there something else I can try before calling an engineer? Thanks in advance
9 Answers
Weaves Interiors & Outdoors
106 Reviews, 96% Positive
Regards to messing with any boiler it is best a registered GAS SAFE engineer is called.
30th Jun 2018
Helpful Answer? Vote Up 
+ 228
+ 228
Post your job & get responses from
local plumbers.
Read reviews before you decide to hire.
Craig Braybrook Plumbing & Heating
1 Reviews, 100% Positive
Looks like p.c.b in boiler has blown.
5th Jul 2018
Helpful Answer? Vote Up + 226
+ 226
GreenDealTrades
1 Reviews, 100% Positive
This Can be rectified by Calling a Gas Safe registered boiler Engineer. It is illegal to carry out any works on a Gas appliance.
18th Jun 2018
Helpful Answer? Vote Up + 220
+ 220
CM Prestige Heating & Plumbing Ltd
10 Reviews, 80% Positive
You might of blown the pub board. Needs to be checked. If you wired to the 12v point the you need a new pcb board.
21st Sep 2018
Helpful Answer? Vote Up + 216
+ 216
MC Plumbing and Heating
9 Reviews, 100% Positive
It's possible that the thermostat was wired in incorrectly and has blown pcb, this would need further investigation to confirm this.
29th Sep 2018
Helpful Answer? Vote Up + 208
+ 208
only flues and hoses
7 Reviews, 100% Positive
You possibly blew pcb (printed circuit board) by wiring programmer wrong or boiler internal fuse .
Or blown relays in programmer
Or blown relays in programmer
4th Dec 2018
Helpful Answer? Vote Up + 205
+ 205
Boilerrepairsbristol
1 Reviews, 100% Positive
Yes you wire up the thermostat timer to the wrong part of the boiler and blow the fuses test the fuse there is normally 2 of them if not the board is f---k so new board for you kid
8th Jan 2019
Helpful Answer? Vote Up + 200
+ 200
Pipe Dreams Services Ltd
1 Reviews, 100% Positive
I think you have blown something else and unless you fully understand how the Electrics work in a boiler I really would suggest you get a Gas Safe Engineer out
30th Mar 2019
Helpful Answer? Vote Up + 184
+ 184
CLS Plumbing & Renovation
0 Reviews
Get professional help.
10th Jul 2019
Helpful Answer? Vote Up + 176
+ 176
Post your job & get responses from local plumbers.
Read reviews before you decide to hire.
