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Carrier 42QZA009DS-1 - Page 72

Carrier 42QZA009DS-1
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69
Pic 2: IPM or outdoor main PCB
Self-Check
Power,
Operating
Self-Check
Operating
els)
Pic 2: IPM or outdoor main PCB
Pic 1: check the voltage of N to S
(Vs), is it moving alternately
between positive value and negative
value?

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