_& S_a_on Service & Troubleshooting Guide -Home Generator Systems
_'_ Model 1938 (lOkW) Generator Assembly
Checking The Stator Power Winding
Through The Harness
Access Requirements:
• Access to CMA Board (Page 15)
Related Fault Indications:
• Low Voltage ([ • • • ]) Three Blinks
Checking the power winding resistance through the harness
(as shown in figure 39A & B) ensures the integrity of the
winding and the associated wiring.
• Turn the generator circuit breaker "OFF".
• Check between Wire #1 I and Wire #22 or
NEUTRAL.
• Check between Wire/#14 and Wire #22 or
NEUTRAL.
Checking The Battery Charge
Winding (BCW)
Through The Harness
Access Requirements:
• Access to CMA Board (Page 15)
Related Fault Indication:
• Low Battery Voltage ([ • ]) One Blink
Checking the battery charge winding resistance (BCW)
through the harness (as shown in figure 40) ensures the
integrity of the winding and the associated wiring.
• Disconnect Wire #77 from the resistor and check to
Wire #66.
should be measured.
NOTE: Measuring through the harness will not
verify a defective power winding but it will validate a
winding/wiring combination that is serviceable.
To isolatethe power winding:
See "Checking The Stator Power Winding" (Page43).
should be measured
NOTE: Measuring through the harness will not
verify a defective battery charge winding (BCW) but
it will validate a winding/wiring combination that is
serviceable.
To isolate the battery charge winding:
See "Checking The Battery Charge Winding (BCW)"
(Page 44).
42
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