How to mend ... Will Not Shut Off

My heating and hot water do not work and “A03” is flashing?

Hello, I have recently come across a problem with my Chaffoteaux & Mary, where neither my boiler nor heating w... [Read more]

Tybox 827 rf shut-down?

I have a Tybox 827 rf which is not responding to my heating settings after I allowed the 'service due' reminde... [Read more]

Drayton Digistat +RF Model RF-601?

Drayton central heating control system. Occasionally sticks on heating when it should have shut down. Only way... [Read more]

Ferroli Optimax HE31c a26 problem?

I'm having A pressure issue. The system pressure will increase to over 2-3bar and shut off from a starting pos... [Read more]

How can I my house boiler fixed?

How can I fixed my boiler the problem I had Baxi 80e combo boiler. Seems to be all parts and all switch are wo... [Read more]

How can I solve the intermittent fault on my potterton profile 40e?

Once started up the boiler runs ok until it is shut down by the time switch or the room thermostat. When the t... [Read more]

ideal Isar combi-boiler carnt get it to work?

Boiler has shut down and cart switch it on again, have reset but nothing happening

Baxi solo 3 pfl?

After boiler has shut down pump runs on as normal but doesnt shut down after normal period. runs constantly

Danfoss RA 2000 thermostatic Radiator Valve Wont shut off?

When turning the thermostat all the way down to off position it wont shut off and continues to heat. Do I need... [Read more]

Boiler Hot water intermittently losing temp, Heating seems fine?

The title explains the main issue, for some reason the hot water drops often every 20 secs or so, sometimes it... [Read more]

ferroli f 28 losing pressure?

hi, my boiler is losing water at an alarming rate...i've checked all under floor pipework, nothing, bone dry. ... [Read more]

britony se 80 pcb replacement?

3yrs ago had code 60 fault on my se80.got a new board which i set up as the original board and fitted it.combi... [Read more]

My ferroli optimax HE25S does not shut down?

I have an intermittant problem with my ferroli optimax HE25S. Sometimes the CH side does not shut down when th... [Read more]

TYBOX 827 RF Service due reset?

I have a Delta Dore Tybox 827Rf connected to a Greenstar 30CDI boiler, now the bolier has been serviced and th... [Read more]

Saunier Duval F35E auto-vents down to code 21 in minutes?

7 year old boiler, noticed code 21 (radiator circuit pressure low) so she opened the filling loop but left it ... [Read more]

Why does my Boiler fire up when timed to be Off?

Help! I have a Digistat RF3 Transmitter and SCR receiver. My problem is that my Boiler fires up when timed t... [Read more]

ferroli he25s?

My boiler has shut down and is showing a flashing red code A 26.....what does this mean as this code is not in... [Read more]

Drayton Rf2 digital wireless unit going haywire?

Hi all, have had probs with this unit a couple of yrs ago and had to reset the thermostat to the scr but came ... [Read more]

How to fit a water flow switch on a Worcester 28i RSF?

Hi, ive got a new flow swith to fit on my Worcested 28i RSF as i have no hot water. What do i need to do to... [Read more]

pump wont shut off ferroli hc31c?

hi we have a ferroli he31c and the pump motor wont shut off,there is heating,there is hot water , there are n... [Read more]