Hello chaps just wondering if anyones cams across this problem before.
I had a service call on the old r22 city multi today, 2 units in the chief executives office not heating.Anyway found the r/c set wrong ran on 24 heating worked fine. Decided to check all other units on heating, found 2 out of 6 wouldnt heat at all yet they will cool staifactory.Im sure the system is ok for gas because the pressures are norm and the furthest units are performing.is it worth swapping the solenoids for heating in the bc box with the cooling ones.Even tried re calibrting all the indoor exp valves.