DENSO CORPORATION CLASSIC PLUS 26 - Manual (Page 39)

TROUBLESHOOTING AND REPAIR
31
13. Inspection of Drain Switch
Check for continuity between terminals 1 and 2.
Continuity should exist. With switch depressed,
continuity should not exist between terminals 1
and 2. If continuity is not as specified above,
replace the switch.
14. Inspection of Fan Motor
Measure resistance across the terminals of the
fan motor.
Terminals (at 77˚F (25˚C))
J6 - CF1
Approx. 6.8
Ω
J5 - CF1 Approx. 10.5
Ω
CF1 - CF2 Approx. 19.0
Ω
If the measured resistance is not equal to these
standard values, replace the fan motor.
15. Inspection of Compressor Motor
Measure resistance across the terminals of the
compressor motor.
Terminals (at 77˚F (25˚C ))
R - C Approx. 0.94
Ω
C - S Approx. 1.96
Ω
S - R Approx. 2.90
Ω
If the measured resistance is not equal to these
standard values, replace the compressor. The
compressor has a built-in overload relay. The
overload relay should be operational if the above
resistance is obtained under normal temperature.
2
NC
C
1
DS2
DS1
To J103
DRAIN
SWITCH
TOP OF
BASE
PLATE
Inspection of Drain Switch
Inspection of Compressor Motor
CF1 (White)
CF2 (Brown/White)
J5 Low (Red)
J6 High (Black)
Ground
(Green/Yellow)
Inspection of Fan Motor