W-2way eco-i alarm codes – Sanyo AHX0752 User Manual

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Trouble Diagnosis

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3. W-2WAY ECO-i Alarm Codes

P05 Alarm

Alarm code

P05

Alarm meaning

Reverse phase (or missing phase) detected

Alarm conditions

This alarm occurs when a reverse phase or missing phase is detected in the L1-L2-L3 phases.

Probable cause

Reverse phase or missing phase in the L1-L2-L3 phases

Check

Check the wiring at the power terminal plate.

Correction

Switch the phases and reinsert. Check if the result is OK.

Example
Notes

P16 Alarm

Alarm code

P16

Alarm meaning

Compressor 1 (INV) overcurrent alarm

Alarm conditions

This alarm occurs when current trouble or current detection trouble occurs at an inverter frequency
of less than 80 Hz after start (when trouble judgment current is detected 13.5 A or higher in the
primary or secondary current).

Probable cause

There is a strong possibility of a compressor failure.
An alarm occurs for current detection trouble when it is judged that no current is flowing after start
(DCCT is damaged). In this case, the cause is a DCCT failure. The cause may be the effects of
noise in some cases.

Check

Check the power wiring and connector wiring.

Correction

It is possible to resolve this trouble by limiting the maximum frequency.

Example
Notes



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