Ferroli Boiler - Hot Water/No Central Heating

pennypincher3562

Hi

Just tried to turn on the central heating, and it's dead. Luckily, don't really need it at this time of year.

I've got a Ferroli Maxima boiler. It's giving no error messages, and the hot water is fine.

When, I turn up the thermostat in the living room, the display responds normally, but the heating is apparently 'dead', no noises, nothing.

Any ideas what I should investigate first?

Cheers
PennyPincher3562

booty40uk

Is it a wired or wireless stat?

pennypincher3562

Hi Booty40

Im pretty sure its a wired thermostat. It's a Danfoss TP5, which must be about 10 years old.

Cheers
PennyPincher3562

southcoastrgi

change the battery

pennypincher3562

Hi SouthCoastRGI

I will give that a go, but I thought if battery was dead, the thermostat would not display?

Will give it a go anyhow.

Cheers
PennyPincher3562

booty40uk

+1 for above to start with.

pennypincher3562

Hi

It was a good suggestion to try the batteries first. I have put a new set in, and I'm afraid it's still dead :-(

Any other ideas would be appreciated.

Cheers
PennyPincher3562

john-306

Same problem here with Danfoss TP5 but no solution unfortunately
http://www.diynot.com/forums/viewtopic.php?p=1649791


Maybe a reset?

pennypincher3562

Hi John-306

I'm afraid the reset hasn't worked. I'll probably end up contacting Danfoss for their recommendation.

Cheers
PennyPincher3562

pennypincher3562

I've noticed that the thermostat is still trying to run it's programming, so I'm thinking the problem may not lie with the thermostat.

After doing some research on the internet, the problem sounds like it might be the 3 way diverter valve? I have to admit, I've no idea what a diverter valve looks like, or where it's located, but will try and find it tomorrow.

PennyPincher3562

southcoastrgi

is it a combi boiler or heat only with a cylinder in the airing cupboard ?