Trane Flex II Series Installation Operation & Maintenance page 42

Symptom Cooling
x
x
M Frost in the
compressor
x
intake pipe
x
x
N Abnormal
x
noise detected
x
in the system
O The unit does
x
not start
Who can take
corrective action
U = User
S = specialised
personnel
Expansion device that is not
s
working properly
Water circulation pump blocked
s
s Water circulation pump defective
Low refrigerant charge
s
The liquid filter is clogged
s
Compressor noisy
s
The panel vibrate
s
Phases of the supply network
s
reversed
Probable cause
Verify and replace.
Unlock the pump.
Check the pump and replace if
necessary.
See point G.
Replace.
Check and replace if necessary.
Fasten properly.
Invert two phases.
Possible remedy
42