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Central Heating

Vaillaint EcoFit pure is heating up despite thermostat being off

Anonymous user 09/03/2024 - 3.17 PM

Good morning, I’ve got a brand new Vaillant boiler installed together with a Mixergy vented tank. The Bypass goes through our bathrooms towel radiator. As an add on I use Hive thermostat and 5 hive Radiator valves in each room one. Despite the thermostat being off, the boiler still fires up and keeps the temperature between 70-80 degrees (temperature is set at 75) and an anti cycling symbol shows up from time to time. I can’t even turn the boiler of besides cutting the main. Any ideas? Thanks in advance

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4 Answers

Picasso Plumbing limited

Rating: 5 out of 5
East Grinstead
Have you checked that the 24rt link has been removed ?
Answered21 December 2020
2

Greentech Heating & Plumbing Ltd

Rating: 4.8 out of 5
Bristol
Yes, sounds like heat link wire has not been removed from 24v /RT terminal on motherboard.
Answered17 January 2021
1

D & R Property and Plumbing Maintenance

Rating: 4.9 out of 5
New Romney
call the installer back to fix it.
Answered21 December 2020
0

Ideal plumbing&heating

Rating: 5 out of 5
Ruislip
Yes if is combi need to remove the link or if is system boiler external controls wiring need be checked mainly motorise valve.
Answered10 January 2021
0