BFT Deimos gate won't close

[Arthur_k99]

My gate opens, but then won't close fully.

I've a BFT Deimos bt qsc d ma sliding gate for several years that it has been working without any problem.
But for the last few days that I can open the gate, then it won't be close fully. It stop closing at halfway.
This problem is only happens during our autumn cold weather at the morning and evening.
I've checked that the photocells were not block by any object.
When I put the gate into manual mode, and push the gate to close that it moves smoothly without any problems.
The gate can open and close fully during the warm weather at midday.

Thanks in advance for your assistance.