PROCEDURE BEFORE SENDING YOUR PCB.
At first, manage to permanently connect a wire between pin 3 of the 6 pin plug
And earth in order to forget the +5 degrees limit.
You must hear the turbine increasing its speed and the circulating pump running
If the noise stops after 2minutes and 7 seconds, then,
The pump fuel is faulty or PCB (more likely)
If it stops after 4 minutes then the glow plug resistor is too high.
(More than 0.4 ohm)
And ignition aborts.
However, it is useful to test each component before deciding that PCB is faulty.
Since the work is easier to do than it was first time (no more IC to replace),
My PRICE is 43 £ (one hour work) postage included
Input check ,repair, and outpout control with report.
Mike