Baxi 80 eco fault

[PJF]

Hi guys,

Im a first timer & have a question for you already.

My baxi 80 eco still runs the CH when its is not on demand. I am a sparky & have a bit of knowledge on the control side of CH. I have fitted a single channel timer & a stat.

When the fault first started I tested the timer & stat with all ok. I then had no link in the CH teminals & it still ran on. So the only way I can stop the heating is to switch off at the spur or turn the left hand dial to 0.

Is it a fault on the PCB which I could change or a part within the boiler.

Thanks guys.

Paul.

 

[kevplumb]

check the h/w microswitch

 

[rojaca]

ditto

 

[PJF]

Thanks guys.

I went the boiler, turned back on & the fault was still there, so I tapped the micro sw with the end of my screw driver & yep it stopped the HW, on tapping a few more time it started back up.

Now to find a micro switch in the back of my van, Ive got one somewhere.

Thanks for the help guys with a very cheap fix.

Paul.

 

[PJF]

The fix just got even cheaper, I found the rubber boot on the switch rod was fouling the rod, so I removed it & gave a squirt of WD40. All working fine now.

Once again thank you.

Paul.