lancer DELTA III 9100 Series, Operation Manual

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12
PROBLEM CAUSE REMEDY
6.14 Compressor does not start (no
hum), but condenser fan motor runs.
A. Compressor relay or overload
malfunctioning.
B. Inadequate voltage.
C. Incorrect wiring.
D. Compressor malfunctioning.
A. Replace compressor relay or
overload.
B. Measure voltage across common
and run terminal on compressor. Volt-
age must not drop below 90% of rated
voltage.
C. Refer to wiring diagram and cor-
rect.
D. Replace compressor.
6.15 Compressor does not start, but
hums.
A. Inadequate voltage.
B. Incorrect wiring.
C. Starting relay malfunctioning.
D. Compressor malfunctioning.
A. Measure voltage across common
and run terminal on compressor.
Voltage must not drop below 90% of
rated voltage.
B. Refer to wiring diagram and
correct.
C. Replace starting relay. Be sure to
use correct relay. Failure to use
correct relay will cause compressor
failure.
D. Replace compressor or deck.
6.16 Compressor starts, but does not
switch off start winding (will run for
only a few seconds before internal
overload switches compressor off).
A. Inadequate voltage.
B. Incorrect wiring.
C. Starting relay malfunctioning.
A. Measure voltage across common
and run terminal on compressor.
B. Refer to wiring diagram and
correct.
C. Replace starting relay. Be sure to
use correct relay. Failure to use
correct relay will cause compressor
failure.
6.17 Compressor starts and runs a
short time, but shuts off on overload.
A. Dirty condenser.
B. Insufficient or blocked air.
flow
C. Inadequate voltage.
D. Incorrect wiring.
E. Defective condenser fan.
motor.
. Refrigerant leak.
G. Compressor malfunctioning.
A. Clean the condenser.
B. Remove all obstructions and allow
for minimum clearances of eight (8)
inches (20.3 cm) over top.
C. Measure voltage across common
and run terminal on compressor. Volt-
age must not drop below 90% of rated
voltage.
D. Refer to wiring diagram and cor-
rect.
E. Replace condenser fan motor.
F. Repair and recharge.
G. Replace compressor.