Toshiba A09-01P Outdoor Alarm indication, Alarm Indications cont, Quick Reference Guide - Page

	Quick Reference Guide - Page 30
Alarm Indications (cont)
A09	Overheat preventive operation malfunction Auto-reset: When operation mode is changed
A11	Release preventive operation malfunction This alarm occurs when the Hydro Unit enters the forced-
	stop zone 10 times.
	Self-hydro unit is stopped due to alarm of other hydro unit. When alarm occurs in an hydro unit in the
	group, other hydro units must also be stopped with refrigerant control.
P31	When alarm E03, L03 or L07 occurs in the header unit in the group, other hydro units must also be
	stopped
	because they do not know which header unit (remote controller) to follow.
	Auto-reset: When the first alarm is reset

Outdoor Alarm indication

Alarm	Main failure part	Description
indication
F04	Outdoor unit discharge	When open- or short-circuit of discharge temperature sensor TD is
	temperature sensor TD
		detected
	defect
F06	Outdoor unit temperature	When open- or short-circuit of heat exchanger temperature sensor
	sensor TE or TS defect	TE or TS is detected
F08	Outdoor unit outside air	When open- or short-circuit of outside air temperature sensor TO is
	temperature sensor TO
		detected
	defect
H01	Compressor breakdown	When min-Hz is reached by current release control or when short-
		circuit current (Idc) is detected after direct current excitation
H02	Compressor locked	When compressor lock is detected
H03	Current detector defect	When abnormal current is detected in AC-CT or phase loss is
		detected
H06	Low-pressure system defect	Ps pressure sensor defect or low-pressure protective operation
L29	Other outdoor unit faults	Other outdoor unit faults: 1) Inter-MCU communication error between
		IPDU and CDB 2) abnormal GBT heat sink temperature
L31	Phase sequence error, etc.	When phase sequence of 3-phase power supply is incorrect
		(thermostat OFF operation continued), etc.
P03	Abnormal outdoor unit	When abnormal temperature is detected by discharge temperature
	discharge temperature	release control
P04	High-pressure system	When high-pressure switch , IOL is activated or when abnormality is
	defect	detected by high-pressure release control by TE
P22	Outdoor unit fan defect	When over current or lock in outdoor unit fan drive circuit is detected
P26	Inverter Idc operation	When short-circuit protection is activated for compressor driver
		devices (G-Tr, IGBT)
P29	Position detection error	When compressor motor position detection error is detected