fridge doctor
05-12-2007, 05:17 PM
Hi guys,
I've been to a medium size single phase wall split today (General Electric). Indoor unit makes all the right noises etc. Outdoor unit does nothing. After the usual checks I was thinking indoor board not sending signal, because at the outdoor terminal board I only had Neutral and One Live which was to the coil on the compressor contactor. So back inside I checked the terminals going outside. Found I had Neutral and Four lives at 230v. Double check, yes definitely only one live outside at the isolator.
Pulled the front of the indoor away from the wall and found the flexible cable is terminated with connector strip into a SWA cable of 7 cores (one spare). The other end of which is in the isolator.
I checked the connector strip, it is clean, dry, rust free, tight, wires are bright and shiny. Disconnected from isolator applied power, same as before - only one live out of 4. Disconnected two of the 'missing lives' and connected them together looking for continuity at the other end - nothing ! But this is a 2 metre run of SWA which has been encased in a concrete wall and is just 2 years old. Everything points to 3 broken wires but it just can't be possible.... Oh yes, one other thing, when I flipped it from heat to cool, one of the other terminals did become live, but the original one went to 0v. So let's say number 2 had been live at the outdoor, and 3,4,5 were dead. Then 3 became live and 2,4,5 were dead even though as I said I have 2,3,4,5 all showing live exiting the indoor unit !!
I am certain the terminal ends are making good contact in all cases, and I think it virtually impossible for there to be a break in the cable, can anyone offer any ideas please ?
Wit's end
I've been to a medium size single phase wall split today (General Electric). Indoor unit makes all the right noises etc. Outdoor unit does nothing. After the usual checks I was thinking indoor board not sending signal, because at the outdoor terminal board I only had Neutral and One Live which was to the coil on the compressor contactor. So back inside I checked the terminals going outside. Found I had Neutral and Four lives at 230v. Double check, yes definitely only one live outside at the isolator.
Pulled the front of the indoor away from the wall and found the flexible cable is terminated with connector strip into a SWA cable of 7 cores (one spare). The other end of which is in the isolator.
I checked the connector strip, it is clean, dry, rust free, tight, wires are bright and shiny. Disconnected from isolator applied power, same as before - only one live out of 4. Disconnected two of the 'missing lives' and connected them together looking for continuity at the other end - nothing ! But this is a 2 metre run of SWA which has been encased in a concrete wall and is just 2 years old. Everything points to 3 broken wires but it just can't be possible.... Oh yes, one other thing, when I flipped it from heat to cool, one of the other terminals did become live, but the original one went to 0v. So let's say number 2 had been live at the outdoor, and 3,4,5 were dead. Then 3 became live and 2,4,5 were dead even though as I said I have 2,3,4,5 all showing live exiting the indoor unit !!
I am certain the terminal ends are making good contact in all cases, and I think it virtually impossible for there to be a break in the cable, can anyone offer any ideas please ?
Wit's end