Compressor Cooling wrong unit

[Aryne]

Hi!

I am a layman desperate for an answer. I turn on one aircon and it will not cool. I go to the other room and find the aircon that is turned off (not switched on for days) is so cold it has condensation.

I had a professional look at it a week ago. He opened some valves and told us to leave them running until they came good. That seemed to work initially, but now I'm dealing with the problem above.

I can't find any info beyond a blogger telling me to clean the filter. All new units, four in total. The other two units have not had any issues.

Many thanks,

Aryne

[Brian_UK]

Unit interconnecting piping needs to be checked for correct pairing.

Also electrical wiring including remote controls needs checking.

[Tayters]

There's more units fitted like that than you'd think, only noticeable when one of them is turned off.

Like Brian says, Unit A inside is piped to A outside but the interconnecting cable goes to B outside. Outdoor unit sees B calling for coolling so that's why it will eventually freeze up.
Get the installing company back to commission it a bit more thoroughly or if your are desperate and competent swap outdoor interconnect of those two units and try each indoor one at a time.
Cheers,
Andy.

[martinw58]

the interconnecting cables are crossed system a is wired to system b and b to a

[Aryne]

Thank you so much!! Really appreciate it!

[Aryne]

Thanks very, very much guys! I will call them up and let them know. You're angels!!