This is in a house that had decent power surge. Most of the other electronic equipment has just needed new fuse or new mains filter caps. The oven clock has an open circuit resistor on incoming 240V. They are quite large and dark brown.
I'm having trouble deciding what the actual value is by the bands.

There are 4 of these style resistors, 3 have 5 bands, 1 has 4 bands.

The one in question is (thicker) Blue grey black silver blue. I'm saying 68 Ohm but seems to low? The other resistor that has 4 bands is blue grey black silver and is 68 Ohm and looks to be the same wattage/physical size. Why would they use 2 different sorts of resistors for the same value in the same thing?

The other 5 band is (thicker) Brown black red silver blue and measures 1K on a analogue meter or 680 on a digital meter???? Now I'm second guessing myself. Maybe its blue grey black the other way????
The board has no stepdown transformer and runs a fluroestant display like old school hi fi.

Hi Graham, I believe the resisters are as follows,
Blue grey black silver blue 6.8ohm @ 0.25%.
Blue grey black silver 68ohm @ 10%.
Brown black red silver blue 1.82ohm @ 0.25%.
Regards Sparks.

6.8 Ohm spot on thanks. removed the surge arrestor and all is well. Hopefully I can make the customers day......
Must be time to donate again.

Coming up next month  

Great should be back from my spacewalk by then

Cheers
Joe