Hiyas,
Can anyone send me a wiring diagram for this machine?
I’ve inherited the job, runs ok, defrost timer switches off and it never switches on again. (Has had 3 engineers to it and new defrost timer was fitted, wiring mixed up?)
Any ideas on the likely cause if it’s not a wiring mix up?
There should be a small wiring diagram on the side of the timer, neutral for the timer motor, a live common feed, normally closed to the compressor/stat and normally open to the defrost system. (except during the defrost phase obviously)
It sounds like the common live & supply to compressor are reversed, quick check with a multimeter will confirm.