What was the symptoms when the power adaptor is bad?
for my case,
Preset to 45 RH. but the cabinet would never reach this preset level even if cabinet kept closed for few days. Hovering around 60 plus.
the manual stated it should reach preset after few hours.
I had a power adaptor change. Now monitoring. It seems to be going down....good sign towards preset level.
Please share your symptom when adaptor fails.