United Technologies Carrier Transicold 69UG15, Operation And Service

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4–5 T-360
4.3 ALTERNATING CURRENT GENERATOR
Charger does not charge Open BCF3, BCF4, or BCF5 Replace
Charger is not receiving AC input Use voltmeter to confirm charger is
receiving 360-500 VAC. If not,
check input connections/fuses.
Charger output is not connected to 12 volt
battery Check output wiring connections to
battery.
Charger is bad Replace
Low output voltage measured
across charger output Battery not connected to charger. It is nor-
mal to measure 12 volts or less across
charger output with no battery connected Check charging leads from charger
to battery
Reverse polarity connection to
battery has caused charger to
stop charging Internal DC fuse blown and possible dam-
age to current carrying components Replace
Table 4–8 Alternating Current Generator
Condition Possible Cause Remedy/Reference Section
No voltage Loss of rotor magnetism Replace
Circuit breaker tripped Check CB1
Open in stator windings Replace
Short circuited Replace
Worn drive gear stripped Check/Replace
Contactor not engaged Replace
Low voltage Low engine speed Section 5.4.9
High resistance connections - connections
are warm or hot Tighten
Loss of rotor magnetism Replace
Fluctuating voltage (May be in-
dicated by flickering lights) Fluctuating speed Section 5.4.9
Irregular speed of engine Engine Manual
Loose terminal or load connections Tighten
Bad bearing causing uneven air gap Replace
High voltage Excessive engine speed Section 5.4.9
Table 4–7 Battery Charger (Solid State)
Condition Possible Cause Remedy/Reference Section