Sanyo CHDX09663, CHDXR07263, CHDXR09663, CHDX07263 P16 Alarm Alarm code, P22 Alarm Alarm code

4. W-2WAY ECO-i Alarm Codes

W-2WAY ECO-i SYSTEM Trouble Diagnosis

P16 Alarm

Alarm code	P16
Alarm meaning	Compressor 1 (INV) overcurrent alarm
Alarm conditions	This alarm occurs when current trouble or current detection trouble occur at an inverter frequency
	of less than 80 Hz after start (when trouble judgment current is detected in the primary or
	secondary current, or when an instantaneous secondary current of 13.5 A or higher is detected.
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.
Check	Check the power wiring and connector wiring.
Correction	It is possible to resolve this trouble by limiting the maximum frequency.
Example	—
Notes	—
P22 Alarm
Alarm code	P22
Alarm meaning	Fan motor trouble
Alarm conditions	Fan motor start failure, fan motor Hall IC input failure
Probable cause	Possible causes are a Hall IC input circuit failure and a fan HIC failure.
Check	Check the fan motor wiring, the Hall IC wiring, and the connector connections. If the wiring and
	connectors are normal, then check that the capacitor of the Hall IC input circuit is securely
	soldered on the outdoor unit control PCB. Also use a tester and measure the resistance between
	fan HIC power (HIC+) and ground (HIC–). If there is a short circuit, there is an HIC malfunction.

(–) (+)

		Fan circuit on the outdoor unit control PCB
Correction	If the fan does not start, the below corrections may be effective.
	(1)	If there is a fan HIC failure or circuit failure, replace the PCB.
	(2)	If the fan motor is locked, replace the fan motor.
Example	—
Notes	Turn OFF the power, and check the continuity of “+” and “–” on the fan circuit PCB.

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