Nest - heating comes on at night but not scheduled to ?

[Nic-nfr74]

So we have had a new boiler installed and hooked it back up to our Nest - all working fine and heating and water kick on and off as needed. Except in the middle of the night the heating is coming on - there is no schedule set for this OR min temps to over come

I am at a loss of what else to check now

Any thoughts???

[2 sMoKiN bArReLs]

I had similar with timer for lights.

I did a factory reset & then re input all the schedules. Might be worth a try?

[finlo]

Frost stat?

[Hereward]

How long does it come on for? Most systems have a regular anti-seize function but these don't tend to run for more than 5 minutes.

EDIT: Or you may have inadvertantly programmed a heating slot without realising.

[Nic-nfr74]

finlo said:

Frost stat?

nope that's set at 3 degrees and its been coming on when we have had much warmer temps than that

[Nic-nfr74]

Hereward said:

How long does it come on for? Most systems have a regular anti-seize function but these don't tend to run for more than 5 minutes.

EDIT: Or you may have inadvertantly programmed a heating slot without realising.

that's what I thought - but its on for a few hours at least - woken me up a few times baking hot. Double checked the schedule and I cannot see anything in there either

[Nic-nfr74]

2 sMoKiN bArReLs said:

I had similar with timer for lights.

I did a factory reset & then re input all the schedules. Might be worth a try?

This might be an option to try - going to find that and have a go

[Chilly for June]

Has the nest gone into "learning" mode for some reason due to the change of boiler?