Result!!! - cables flipped, the boiler runs like a dream. Thanks for all your help.
Not kidding, it took me showing the engineer this TikTok for him to admit it might be flipped cables:
This is the current setup - took a pic on the last visit. The lead cap colours look ass-backwards to every Baxi I've seen online. I don't have a pic of where the leads are connected.
We're on a contract, which has been mainly for servicing but now something has gone wrong it feels like they're not addressing the problem just wildly changing things without getting tech help from the experts. We've had lots of call outs - they've changed all the things listed above. I'm a bit...
Hi, I have a Baxi Megalfo Compact which has been locking up with an E133 code. Each time the engineer comes over (about 8x visits now) he takes the cover off and we both stand looking at the thing firing up. Every time I point out the sparks jumping across from the black insulation jacket of the...