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Personally I'd go with a Worcester. If you want a smart thermostat get an easy control then you can link smart thermostatic radiator valves to it for better heating control of each room. If not get a comfort 2 all covered under the guarantee so you've got peace of mind if anything breaks down in...

Run a hot tap and watch the display on the front of the boiler. Does it reach 82c then cut out then relight when the display temp drops

400 watts

Hi. I'm fitting a drimaster heat at home. As it has a heater can I wire it into the lighting circuit or should I wire it to the ring main? Thanks

sounds like the expansion vessle is flat/faulty. you should get it checked out

diverter valve

check that air vent on top of pump is open, and all other air vents in boiler, when its fixed let us know what it was

i mean switch boiler back on b4 using it as u will make it lock out. doing what you said is fine and will not cause any damage to the boiler. leave power on for anti siezure ect, just pray we dont have a sudden change in weather, if your sceptical about your gas why not your water?

got given a drill with no clutch by my old firm to drill wood, ended up with three stitches in my lip

wat about playing it safe with water? will cause alot of damage if a pipe bursts while your away??

just switch off boiler, turn off gas, then turn on gas switch on boiler

sounds like no circulation id look at pump 1st, could be an airlock but highly doubtful, check that both boiler valves are open, all rad valves are open ect. could poss be a scaled up hex

should turn a full 360, inline with pipework is on, accross pipework off

exp vssle may not be charged correctly

No not normal. Fit a.nrv on hot should cure it

Wiring fault

just type it into google images and a few come up

why would he need core twice ? lol maybe CEN1. isit a legal requierment now to have CPA1 to fit a boiler ect ? as most manufactures dont require a FGA to commission ?

because it wasnt fitted by a GSR engineer and valliant will invalidate warrent ? just a guess