FBH cheap DIY timer

[brianw]

Originally Posted by HarryM1BYT

Removing the power and reconnecting it, to find it then works, suggests the FBH had gone into lockout. The FBH will make three attempts to fire or light up, if it fails on the third attempt it goes into a lockout state - it will not attempt to fire again, until reset by removing the power. That can either be by unplugging it or pulling fuse 8.

Going into lockout is usually an indication of a fault. Either it has run out of fuel, or there is an issue with the burner. Maybe the burner and chamber needs a service and clean out?

Thanks for that Harry.
It is strange.
I suspected that it had locked out and tried fuse 8 but to no avail.
I also took out and re inserted the fbh plugs - 6 pin out 2 pin out checked pins etc then replaced still no dice.
After scratching my head I went back out and removed the fbh plugs again and checked the voltages as stated above and that time it fired up.
It just shows sometimes you may have to repeat the procedure.
I have the later model on the car and have the earlier model fitted on my boat powering a couple of rads. Due to the layout on there I have occasionally had that lock out due to air in the circulation pump causing an overheat. That sometimes seems to take a few attempts to reset. No idea why though.
I have never serviced the fbh on the car but it does not smoke excessively or anything like that I guess I will see how it goes for now.
I must say that for around a tenner it was definitely the best mod I have made for bang for the buck closely followed by changing the seat stats.