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28-02-2018, 08:18 PM #3
Re: LG Multisplit indoor unit stopping
So, took me a while to get all the info...
Indoor Circuit A is an MB12AHL ~12m piping length
Indoor Circuit B is an E12SQ ~ 6m piping length
ODU is an MU4M27
Been doing a bit more troubleshooting;
When heating on circuit B - it heats, but nothing like it should do.
If however I run up circuit A to heating... the heat output from B increases dramatically - A also heats.
If I run the fan on circuit A while B is heating - I get heat from this unit as well which I wouldn't have expected.
Im beginning to wonder if the control lines for A & B are simply the wrong way round in the ODU
Im not suspecting a leak - the heat output is there, its just not provided to B unless A is running also
Confused to say the least!!