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High level trip switch never trips, it's like the thermostat switches off the burner before it gets that hot.

I'm struggling with bad chronic fatigue and pain right now, which is giving me brain fog from hell. What normally would be obvious isn't that easy when you feel crap and everything you do takes a toll on your energy levels. I honestly thought it was more complicated than that, I expected a...

It's a 15/19. I'm going to swap out the cartridge in the valve as my first port of call, right now I'm waiting for the system to cool and building up energy to do this. Isolate the boiler from the radiators, drop the pressure, cover the delicate electronics on the burner and twist off the unit...

Thank you, I'll try this when the system has cooled sufficiently. Right now it's just a guess that it isn't running due to the radiators staying cold and the heat exchanger not cooling.

I know electrical safety, electronics is or was my thing hence having all the test gear, thermal camera etc. Thanks for your concern though.

Is there an easy way to test this, or do I just check an on signal is being sent from the control board with a multimeter? I need to wait for the system to cool in order to run the CH side.

Never isolated flow and return valves, guessing my thermal imager could be of use here? and to release pressure, just bleed a radiator? I'm not going to be the fastest doing this as I have very little energy? I guess it's best to at least address a known problem and I can test the motor when I...

Hi folks, I seriously hope someone can help me out here as I'm up in Shetland, disabled and housebound and my boiler is screwing around plus getting a plumber seems like an impossibility. I think my problem is the water pump isn't running when I'm wanting heating as from cold the system runs...