Hi everyone, I hope someone can help.
I have a Main combi 30 he. It’s been working fine until a few days ago.
Mains water pressure is good.
Central Heating is working perfect.
My problem:
1. Initially you had to put on 2 taps to get the boiler to fire up.
Also there is a delay in the boiler firing up for hot water. You have to turn on the taps on fully before the boiler fires up.
no warning lights on.
Venturi was changed- made a slight difference you only have to put one tap of fully for the boiler to fire up.
this was the part:
https://www.dhsspares.co.uk/product...MIkJ3LmPeq7QIVWODtCh0_WQ-pEAQYASABEgLtsPD_BwE
2. water pressure is showing 1.5 bar. I did try filling it up more but the gauge needle just won’t budge Past 2. broken gauge?? ie not showing correct reading? Or blocked somewhere? i know it should only be 1.5 bar but i was just checking is the gauge worked. i put it back on 1.5 bar again
3. Could it be expansion vessel ? That needs repressurising?
Air pressure switch was changed 6 months ago, diaphragm was changed 12 months ago.
could it be sensors? thermistors?
hope someone can help.
I have a Main combi 30 he. It’s been working fine until a few days ago.
Mains water pressure is good.
Central Heating is working perfect.
My problem:
1. Initially you had to put on 2 taps to get the boiler to fire up.
Also there is a delay in the boiler firing up for hot water. You have to turn on the taps on fully before the boiler fires up.
no warning lights on.
Venturi was changed- made a slight difference you only have to put one tap of fully for the boiler to fire up.
this was the part:
https://www.dhsspares.co.uk/product...MIkJ3LmPeq7QIVWODtCh0_WQ-pEAQYASABEgLtsPD_BwE
2. water pressure is showing 1.5 bar. I did try filling it up more but the gauge needle just won’t budge Past 2. broken gauge?? ie not showing correct reading? Or blocked somewhere? i know it should only be 1.5 bar but i was just checking is the gauge worked. i put it back on 1.5 bar again
3. Could it be expansion vessel ? That needs repressurising?
Air pressure switch was changed 6 months ago, diaphragm was changed 12 months ago.
could it be sensors? thermistors?
hope someone can help.