Heating/Water Fault.

[Steve1412]

Afternoon Guys,
Got a little irritating fault that I cant put my finger on hopefully one of you guys could point me in the right direction. My boiler fires up continually even when its not called for, runs till boiler stat trips it off.
I havent really had a lot of time to play with it but hopefully will be off a couple of days this week and I can play a little more. I have disconnected orange switch wire from 3 port valve to try to elimiante that first but boiler fired up. I removed room stat and boiler fired up, I then removed controller completely and boiler still fired up!!!! So wtf is triggering the boiler hahaha....With the controller removed I will not be getting the HW off signal...could this be the culprit...its hard to test controller when it is plugged in as the backplate is obviously screwed to wall with controller plugged into it.?? any help much appreciated. Its a pumped Y plan with potterton prima boiler and drayton 3 port valve.

 

[Guest111]

Faulty frost stat?has anything been changed or has it just started doing this on its own?

 

[Steve1412]

Thanks for reply. As far as I know I dont have a frost stat. Unless it is inside the boiler itself?

 

[Guest111]

Ok best trick is to get yourself a drawing and go through it,it will soon make sense and hopefully all will appear clear,it could be a fault on programmer,does it go off if you remove programmer?

 

[telectrix]

turn it off. get a jumper for when it gets chilly. sod off british gas,

 

[Guest111]

turn it off. get a jumper for when it gets chilly. sod off british gas,

Spare meter?

 

[telectrix]

hi, phil, from marmaris. relaxing in the sun. here till sunday.

 

[Guest111]

hi, phil, from marmaris. relaxing in the sun. here till sunday.

lucky man,sat here trying to decide wether to have another breakdown or just hibernate 'till things improve.lol

 

[Steve1412]

Haha...i will have to put the wifes frillys on to keep warm!!!..I had the stat, tank stat, controller and valve sw wire all removed and it still fired up...thinking of calling Ghostbusters!!!..didnt want to go into the boiler but I suppose needs must... I have the drawings required...was hoping somebody had come across a similar one....thanks for help...and have an Efes on me!!!!

 

[Guest111]

is the boiler actually firing up or just running the pump,some have an overrun to heat heat from the boiler before it shuts down.

 

[telectrix]

Haha...i will have to put the wifes frillys on to keep warm!!!..I had the stat, tank stat, controller and valve sw wire all removed and it still fired up...thinking of calling Ghostbusters!!!..didnt want to go into the boiler but I suppose needs must... I have the drawings required...was hoping somebody had come across a similar one....thanks for help...and have an Efes on me!!!!

EFES not too bad for lager, as it goes. it's free. getting withdrawal symptoms for decent british ale and a bacon& egg buttie, though.

 

[Steve1412]

Yes the boiler is also firing up?...

 

[Guest111]

if the boiler is firing with everything else disconnected then I'd suggest a pcb fault.

 

[Steve1412]

Oooo I found the turkish eggs taste like what eggs used to taste like when I was a kid but the Bacon...its super streaky!!! lol

 

[Steve1412]

if the boiler is firing with everything else disconnected then I'd suggest a pcb fault.

It doesnt have a pcb?....OMG...its a poltergoost!!!haha

 

[davesparks]

I would suggest you don't go opening the boiler up, this is in the realms of the gas safety laws and without knowing what you are doing you could break the law, or more importantly risk lethal combustion products leaking into your home.

 

[telectrix]

only if he messes with the gas side.

 

[robsparky1975]

Can you not get to the terminal inside the boiler and check voltages.Its not interferring with the gas/combustion part of it.If you set HW and check with CYL stat on and off do you get switched live on/off and then check HTG with Roomstat on/off,some basic checks maybe but will speed the diagnosis up a bit.There are diagrams on the forum somewhere for a Y plan.Let us know the outcome.Goodluck

 

[davesparks]

only if he messes with the gas side.

Some boilers you have to remove a sealed cover before you can get to the electrical terminals, as a general rule any cover which requires a screwdriver to remove requires a gasman in attendance.

 

[Geordie Spark]

Afternoon Guys,
Got a little irritating fault that I cant put my finger on hopefully one of you guys could point me in the right direction. My boiler fires up continually even when its not called for, runs till boiler stat trips it off.
I havent really had a lot of time to play with it but hopefully will be off a couple of days this week and I can play a little more. I have disconnected orange switch wire from 3 port valve to try to elimiante that first but boiler fired up. I removed room stat and boiler fired up, I then removed controller completely and boiler still fired up!!!! So wtf is triggering the boiler hahaha....With the controller removed I will not be getting the HW off signal...could this be the culprit...its hard to test controller when it is plugged in as the backplate is obviously screwed to wall with controller plugged into it.?? any help much appreciated. Its a pumped Y plan with potterton prima boiler and drayton 3 port valve.

PM Chris Murphy. He'll know.

I'll be surprised if he doesn't.