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Good morning, I have the exact same symptoms with the same model of boiler. I had put it down to the nest thermostat I had put in firing it up. Mine is firing for about 6 minutes every hour. Would this explain why my oil levels are lower than I would have thought if this is burning for an extra...

Evening everyone, This is going to be one of those annoying questions which could be how long is a piece of string lol We moved into a new detached single-story bungalow in April. The oil boiler is used for the heating and water with a megaflow cylinder. It's a new build (10 years old) so...

Thanks for the quick reply! Tonight's job will be mounting the link on the wall :)

Good afternoon, We have had our nest and heatlink installed for about a week now and its all working like a dream. We just did the install ourselves and it went without a hitch replacing the old Danfloss programmer with the heatlink. My question is that there is nowhere on the heatlink to...

The programmer was working fine. It was just losing its time and programs with power cuts. As a test we are going to put it back in place and see what happens tomorrow night.

Stem, We tried some stuff while down at the house today with little success. I have attached some pictures of the setup but appreciate you won't be able to tell a lot from them as that's only part of the puzzle. I couldn't find anything that resembled the valve anywhere near the boiler or...

The system is i would say over 20 years old now anyway so i will have a gander and see what is on the boiler and cylinder side the morrow. Pictures will follow. If that valve was the issue would that stop the oil boiler from firing up?

Stem, I will give that a try at the weekend. It's a relatives house so will be down there on Saturday. Ty for confirming the wiring for me, always good to have a second opinion on these things! The system was working ok as far as i understood. She had the HW on constant and the CH on a...

Good morning everyone, Looking for some pointers. As the title says we replaced the old broken one with a new ST9400C. Transferring the wiring didn't seem too bad at all. I have attached a pic of the old wiring. Basically one wire for CH, one for HW and the loop from Live to 2 and 5 for...