Potterton Suprima 70: kaput - on New Year's Eve.

[macman]

Hi guys,
Yep, New Year's Eve and my boiler has packed up too. Absolutely nothing happening except the startup procedures, i.e. it tries to boot up 3 times and the red light then comes on permanently.

This is what it did tonight:
at the third attempt, it fired up for 1m 20sec then red LED came on, green LED flashed (slowly, 2 times a second). Then red LED goes off, and then comes on permanently. Nothing has happened since. There's no banging, scaping or other untoward noises.

We think the wall stat is ok - checked it's working with a multimeter.

The boiler is 4 years old and has been working fine up until we noticed it was a bit parky over dinner tonight.

Boiler code at top right is CHHS 103 0307 if it helps.

Can anyone shed a light on the possible cause? Can anyone recommend a Potterton/CORGI specialist in the Redbourn/Harpenden area - our most recent plumber has disappeared without trace a couple of years ago.

Thanks
Paul

 

[keego]

Most common fault with the Suprima is the PCB although there are a couple of things that can give the same fault, check the ignition lead insulation at the spark electrode end to see if it's backed off a bit & the spark is tracking to the mount instead of the burner.

 

[weareleeds]

press the reset button for a temporary fix & have a 3rd attempt at a pcb fitted (but should be ok as it involves a complete boiler re-wire)

 

[macman]

press the reset button for a temporary fix & have a 3rd attempt at a pcb fitted (but should be ok as it involves a complete boiler re-wire)

Tried that twice, maybe three times now - no go I'm afraid.
So you think the PCB may have just died?


Getting very chilly here - happy new year!

Paul

 

[macman]

Most common fault with the Suprima is the PCB although there are a couple of things that can give the same fault, check the ignition lead insulation at the spark electrode end to see if it's backed off a bit & the spark is tracking to the mount instead of the burner.

Errr, where's that, and what's it look like? I've no idea, as I'm not familiar with this sort of thing. I leave gas etc to experts.

HNY,
Paul

 

[Mikeyboy]

Best advice to you,is have BG. carry out a fixed price repair,renewal of p.c.b . for £130 ,exceptional value.

 

[macman]

Came down this morning and the boiler is still trying to fire up - flames in the peep hole, but only for a minute at a time, then it gives up. Keeps doing this cycle - weird.


But will try to get BG out as soon as possible - thanks for the advice.

Until then it's gonna be a bit nippy in here for a few days....

 

[damorad]

My suprima 60 was doing something similar.
I removed the PCB and re-soldered a number of dry joints which generally were the off-board connection sockets. That was about 2 months ago and it cured that problem..
Regards
DM