Hi

I have 2 of the above units networked together in a comms room.
I went to do a ppm but when I got there they were both alarming on led and beeping. Also controller inside showing alarm. They are cooling and cycling on/off at around 20 oC.
The problem I’ve got is that the front screens on both units are showing no info. (Symbols are there but no figures or bars showing 50/100% cooling, fans, hum etc. They are showing SYS OFF and NO ALARM at the top. If I go into event log there are also no active fault codes.
I haven’t done a power down/reset yet as it was a Friday afternoon.
Is there anywhere I can get some tech info on this or has anyone came across this before.
I’ve tried uploading pics but saying too big.

Thankyou

Ste