Different scenario. Our Mini pro 2 was installed, 4th Feb 2022, so just under 3 years ago. No problems at all.
Until the first night of the recent cold snap, 3rd January just gone. Didn`t charge at the normal time, woke up to the dreaded flashing red light. Called EO, explained what the issue was. They gave me 2 options.
1-Replace with Mini pro 3 and charge me £300.
2-£250 and they send a man out to diagnose and fix problem , but with no guarantee there would be a fix!
Obviously, I picked option 1.
However, our current Mini pro 2, after I did absolutely nothing, has worked faultlessly since.
The replacement MP3 has just been delivered. They won`t need paying until the engineer installs.
Quandary.
Do I return the MP3 and hope all is actually well and the reason for the failing was the sudden cold snap.
Or fork out the £300 and replace the unit, with a new improved version? Guarantee for a further 3 years too!