25
8-3-2. Only compressor does not run.
Check Timer in outdoor unit
Measure resistance of
compressor motor winding.
•
NO
Check compressor motor
capacitor.
•
YES
YES
YES
Overload relay is working.
Refrigerant gas shortage.
Charge refrigerant gas (R407C).
Temperature of compressor is
abnormally high.
Rotor may be locked up.
(OLR 1 to 4)
(C2,C3 or C3,C4)
Operate either indoor unit A or B.
Check to see if the lamp " PW " is on.
Check to see if the other lamp " UP "
lights up as well.
Confirm that the timer dial has been
set to " 3 min " as shown in figure right.
Replace the timer.
YES
YES
NO
3
0
2
1
H3Y
min
UP
PW
