Durastar - Error Display (Indoor)

Article ID: 724

Last updated: 16 Aug, 2023

Durastar Mini-Splits

Re: Indoor Diagnostic/Error Codes

When the indoor unit encounters a recognized error, the operation lamp will flash in a corresponding series, the timer lamp may turn on or begin flashing, and an error code will be displayed. These error codes are described in the following tables:

Operation	Timer	Display	Description
--	--	dF	Defrost
--	--	cF	Warming in Heat Mode
--	--	SC	Self Clean
--	--	CL	Clean Filter
--	--	nF	Replacing Filter
--	--	FP	Heating in Room Temperature Below 8 deg. C
--	--	FC	Forced Cooling
--	--	AP	AP Mode of WIFI Connection
--	--	CP	Remote Switched Off
1 Blink	Off	E0	Indoor unit EEPROM parameter error
2 Blink	Off	E1	Indoor / outdoor units communication error
3 Blink	Off	E2	Zero-crossing signal detection error (for some models)
4 Blink	Off	E3	The indoor fan speed is operating outside of the normal range
5 Blink	Off	E4	Indoor room temperature sensor T1 is in open circuit or has short circuited
6 Blink	Off	E5	Evaporator coil inlet temperature sensor T2 is in open circuit or has short circuited
8 Blink	Off	EE	Water-level alarm malfunction (for some models)

1 Blink	On	F0	Current overload protection
2 Blink	On	F1	Outdoor room temperature sensor T4 is in open circuit or has short circuited
3 Blink	On	F2	Condenser coil temperature sensor T3 is in open circuit or has short circuited
4 Blink	On	F3	Compressor discharge temperature sensor TP is in open circuit or has short circuited
5 Blink	On	F4	Outdoor unit EEPROM parameter error
6 Blink	On	F5	The outdoor fan speed is operating outside of the normal range (for some models)
7 Blink	On	F6	Evaporator coil outlet temperature sensor T2B is in open circuit or has short circuited
11 Blink	On	fa	Communication error between indoor two chips (for some models)

1 Blink	Flash	P0	IPM malfunction or IGBT over-strong current protection
2 Blink	Flash	P1	Over voltage or over low voltage protection
3 Blink	Flash	P2	High temperature protection of IPM module or High pressure protection or Top temperature protection of compressor
4 Blink	Flash	P3	Low ambient temperature protection
5 Blink	Flash	P4	Inverter compressor drive error
6 Blink	Flash	--/P5	Indoor units mode conflict
7 Blink	Flash	P6	Low pressure protection
8 Blink	Flash	P7	Outdoor IGBT sensor is faulty(for some models)

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Article ID: 724

Last updated: 16 Aug, 2023

Revision: 7

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