Vokera linea 25 he problem

[dobbodogs]

My 4 yr old vokera linea 25 he boiler has developed a fault !!

when switched on fan starts and gas/air ignites for a few seconds then goes out at which point the fan speeds up for a few seconds and then returns to normal speed. The process keeps repeating.

Please Help

 

[sandybeach]

The fault is on the main pcb.

The problem is related to flame detection during the ignition sequence.

You'll need a RGI to fit the board as the boiler will need to be re commissioned.

 

[dobbodogs]

Thankyou Sandybeach.