Pioneer WAE012AMFI15RL Service Manual page 47

Wae-wye series single split dc inverter air conditioner / heat pump systems
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9.4.3 Zero crossing detection error diagnosis and solution(E2)
Error Code
Malfunction decision
conditions
Supposed causes
Trouble shooting:
E2
When PCB does not receive zero crossing signal feedback for 4
minutes or the zero crossing signal time interval is abnormal.
Connection mistake
PCB faulty
45

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