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52C,P
SERIES
30
FIGURE 56 — FAN MOTOR TROUBLESHOOTING CHART
TYPICAL 208/230 VOLT MOTORS
NOTE: Resistance values are approximate.
TYPICAL 265 VOLT MOTORS
NOTE: Resistance values are approximate.
FIGURE 57 — TYPICAL 52C,P FAN MOTORS
POSSIBLE CAUSE
SYMPTOM
Motor Hums
But Does
Not Start
Makes No Noise
and Does Not
Start
Starts But
Stops After
Short Time
Starts
But Runs
Slow
Runs On
One Speed,
Not On Others
DEFECTIVE BEARING
XXX
CAPACITOR DEFECTIVE
XX
SWITCH DEFECTIVE
XX
LOW LINE VOLTAGE
XXX
SHORTED MOTOR WINDING
XX X
NO POWER TO UNIT
X
INTERNAL THERMOSTAT OPEN
X
MISWIRED
XXX X
FAN STUCK
X
BROKEN MOTOR WIRE
XXX X
MOTOR WINDING GROUNDED
XX
OPEN MOTOR WINDING
XXX X
UNIT 52C,P (BTUH) 7,000/9,000 12,000/15,000
CARRIER MOTOR PART NUMBER HC37GE237 HC37GE238
MANUFACTURER’S
PART NUMBER
5KCP29ECA299A 5KCP29ECA301
MOTOR VOLTAGE
208/230 208/230
MOTOR HORSEPOWER
.075 .125
MOTOR SPEEDS
22
RESISTANCE (OHMS)
BLACK TO WHITE WIRE
101.4 90
RESISTANCE (OHMS)
BLACK TO BROWN WIRE
45.8 71
RESISTANCE (OHMS)
BLACK TO RED WIRE
38.8 32.9
UNIT 52C,P (BTUH) 7,000/9,000 12,000/15,000
CARRIER MOTOR PART NUMBER HC29GE236 HC33GE239
MANUFACTURER’S
PART NUMBER
5KCP29FCA315 5KCP29FCA316
MOTOR VOLTAGE
265 265
MOTOR HORSEPOWER
.075 .125
MOTOR SPEEDS
22
RESISTANCE (OHMS)
BLACK TO WHITE WIRE
144.0 83.7
RESISTANCE (OHMS)
BLACK TO BROWN WIRE
29.3 39.1
RESISTANCE (OHMS)
BLACK TO RED WIRE
82.1 45.2