Haier HSU-09HSA03/R2(DB), HSU-12HSA03/R2(DB) manual F19: Power voltage is too high or low, Edition

Haier air conditioner Edition: 20070116

F19: Power voltage is too high or low

Check whether the voltage

between P and N of TerminalYes CN7 of the outdoor is below

120vDC or up 400vDC.

No

The IPM module is damaged and needs replacing

Check whether there is voltage of 187-260VAC between Positions 1 and 2 on the terminal block of the outdoor unit.

Yes

Check whether there is voltage of 187-260VAC between Positions 2 and 4 on the rectifying bridge of the outdoor unit.

Yes

The rectifying bridge or IPM module is damage and replaces a new one.

No Check power supply

No	The reactor of outdoor is
	damage and replaces a new
	one

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