Mend > Home Heating Systems

Glow Worm Ultimate PCB Fault...Resistor colours needed?

Hi, I have a Glow Worm Ultimate 40FF which has Stopped...it's quite obvious from the PCB what the fault is:

I have a 2 Fuse PCB, and the resistor R11 next to fuse F1 is all burnt up and gone open circuit.

Rather than buy a complete new PCB, I'd like to replace the resistor (I work for an electronic company), but I don't know the value to replace it with.

If anybody has to hand one of these, could you please post the resistor colours, then I can do my bit for the environment and repair rather than discard.

Thanks.

Paul Smith
July 2009

Glow Worm Glow Worm 40FF Heating, Home Heating Systems Pcb Repair Fault

Hi
I have exacly the same problem, could you please let me know if your problem was sorted by changing the resistor or what did you do to fix it.
cheers

syed
July 2009

.: FIXED :.

For information;
The resistor had gone open-circuit. We removed it from the board and "forensically" examined it under a USB microscope to figure out what colours the bands were underneath all of the scorching.

Turns out to be 27K.

Replacing the reisisor and touching up a few "dry joints" on the board has resulted in a fully working boiler for the price of a single resistor (pennies) instead of a complete new board (pounds!)

Paul Smith
July 2009