Help! Boiler defunct.

[carreauchompeur]

Hi all,

I've just come back home to have a shower after a run, and the boiler has ceased to work! Was working fine last week, no problems. However now it won't turn on- The display is dead and there doesn't seem to be any power going to it. I checked the fuse in the supply to it which seems fine.

It's an Ideal Isar combi boiler, only a couple of years old. Is there any sort of internal fuse I could check? I'm puzzled. But determined not to call out a heating engineer out of hours

[carreauchompeur]

V8mate said:

carreauchompeur said:

I've just come back home to have a shower after a run, and the boiler has ceased to work! Was working fine last week, no problems.

Just the one shower a week, then?

I have been elsewhere. And last week was only a day ago

NOW HELP!

[carreauchompeur]

robinhood21 said:

Well, first I'd check that the circuit supplying the boiler is OK. Recheck the fuse and if all is OK; isolate the boiler from the power then open up the boiler and check for a fuse.

Thanks, I have done this. Supply seems fine. I did open up the boiler but the PCB has a case around it advising that it's a non-repairable part and all sorts of dire warnings about not opening it.. The fuse is inside said case. I am a little concerned what's caused it, if the internal fuse has blown, and also about fiddling with the PCB...

[carreauchompeur]

The PCB box didn't have any apparent seals and did have screws, oddly... However it was extremely stiff to open and I had the distinct impression that I was about to break something important.

So I'll call someone out tomorrow. After all, SOMETHING has caused the internal fuse to blow, if that's the problem. Reading the reviews of the boiler whilst finding the service manual however, I will be purchasing boiler insurance very soon Sadly there is no way I can wait 14 days without hot water on the exclusion clause It needs a service anyway so I can kill 2 birds with one stone.

[carreauchompeur]

I've now taken said box apart... And found that the primary interior fuse is actually outside the casing. D'oh!

Given that the fuse is alright, all of the primary electrical connections are alright and there are no signs of burning or anything on the PCB, should I simply go out tomorrow and buy a new PCB rather than calling someone out?

[carreauchompeur]

Dogwatch said:

Think I would want to make absolutely sure first that it isn't a broken wire in the supply lead or something equally simple, like the boiler being accidentally turned off or the thermostat knocked.

Ta. Have checked supply leads which seem OK, it's just DEAD! Think I may as well call someone out rather than spending £100+ on a PCB.

[carreauchompeur]

Result! Boiler still under warranty, engineer coming out tomorrow. With a PCB, just in case