Good day to all,

I have this issue for Thermoking T-1000R. The first 2 times of operations, my 24ft box is able to go down to -20 degC.

As the number of times goes by, the evaporator coil starts to freeze up with ice flakes and the temperature is only able to go down to -3 degC, and the system will stop running due to the alarm.

Any kind souls know how ro tackle this problem?

Thank you.