Assuming the Wylex breaker rammed in is the Solar id be far more concerned about that potentially being fed from the RCD in that board thus potentially raising every circuits disconnection time to 5 seconds.
The boiler wiring is potentially dangerous and in no way complies with BS7671, it should not be drapped over central heating pipes in that manner, especially as close to the boiler as it appears to be. Over time the sheath and insulation could be significantly affected to the point where the...
If its a tube motor there is usually two tiny adjusters to set the limits, the ones we use come with sort of a long plastic stick with a hex end for adjusting them.
Blah blah blah you obviously think yourself above everyone else. You dont want to pay to have a proper job done(probably why you have employed muppets in the past). Hope you have no plans on selling your house anytime soon or heaven forbid there is an accident caused by your work. As a side note...
No point arguing with the type of person who thinks speed limits are for everyone but them, we all know its usually not a case of one vehicle doing 70 and one doing 77 its one doing 70 and one doing 90 odd.
The Builder is the Electricians client whom he has quite rightly given the certs too. He has also quite rightly stayed well out of any dispute between the builder and the builders customer.