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For the sake of anyone with a similar problem:- I fitted a new photocell which tested at 20kohms in daylight and 50kohms in darkness. A lot lower than the original, but it didn't make any difference to the burner anyway. I also fitted a new pump coil and the burner fired straight away! The...

Thanks, I'll get one tomorrow, hopefully.

I just checked the oil pump pressure and found it only has 3 bar and won't adjust at all, but can't see anything wrong with it internally! I should have checked this before, although if this is the problem why would it stop the spark or the motor cutout? There is no pressure sensor anywhere...

Yes, there's 52V ac.when it's running.

Thanks StumpyDick, that's probably what I was going to try tomorrow. Should have got one when I got the controller but another customer in the shop said the photocell does nothing until after 12+5 seconds when there is no flame. I've tested it and got 20Kohms in dim light and 1.5Mohms in...

Hello, I have a starting problem with my Riello 40 G2S. The motor runs continuously, but it fails to even attempt to start burning. I've just changed the control unit, along with the nozzle and capacitor, but it's running exactly the same. There is definitely no spark after the 12 seconds, nor...

I've installed a new gravity fed hot water system in my bungalow, putting 22mm pipework to the bath taps to give a good flow rate. Although I raised the cold feed tank as high as possible, I seem to be getting air pockets from the bath hot tap when its fully open. Can I put a non-return valve in...