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16-04-2019, 08:45 PM #1
Air conditioning heating but not cooling help needed
So today I had an Fujitsu unit going into heating fine, but when I asked for cooling, it would come on for 20 seconds down to 9 deg Celsius then start blowing ambient air. Fan would ramp right down and turn off.
I tested the pressures and in heating I'm getting 30bar and 35 bar, in cooling I'm getting 7 and 10 bar, tested the reversing valve and that's fine.
Filters and coils clean.
Any ideas would be great.
It's a 15kw running two cassettes, so I have dismissed it being anything yo do with indoor sensors.
Room temp was in the 20'sLast edited by danielc4514; 16-04-2019 at 09:11 PM.