The boiler temperature is set at 70 degrees but when it fires up for heating it gets to about 45 then shuts down. The flame symbol during heating only shows two bars, out of the four. This is followed by the display of Heating Rem. off time 5 mins. And counts down before firing up again. The rads don’t get hot enough. Any ideas?
Welcome to the forum. Although you can post in any forum, the USA forum is here in case of local regs or laws
View the thread, titled "Vaillant ecoTEC Exclusive 838 problem" which is posted in UK Plumbers Forums on UK Plumbers Forums.
Do you have a remote thermostat what is it set on ?
Lack of flow rate through boiler, so it not getting the differential across the flow & return, it will then enter anti cycling mode.
A
Aire
Do you have a weather compensator or load compensation thermostat?
Yes, a vsmart and the room is 19 degrees and I’ve set it to 22.
My advice sit down with the the user manual for the vsmart and study it if your boiler fires and runs it's being switched off by the controls for some reason, or contact valliant customer service they can possibly get someone to talk you through it . Kop
No, I don’t have any of those.
[automerge]1569866624[/automerge]
TRVs open and hot water is perfect.
It was installed in 2011.
You need a Gsi to attend I would disconnect the vsmart and try the boiler manually you will then know if the vsmart had developed a fault or the boiler is the problem this is not something you can do yourself. Kop
Ok thanks for the advice. What’s a Gsi?
(Gas Safe installer) its against the gas regulation to mess with a gas appliance let someone qualified fix it . Kop
Official Sponsors of Plumbers Talk
Reply to the thread, titled "Vaillant ecoTEC Exclusive 838 problem" which is posted in UK Plumbers Forums on Electricians Forums.
Similar plumbing topics
We recommend City Plumbing Supplies, BES, and Plumbing Superstore for all plumbing supplies.
