Error Codes - Sanden Eco Plus FQS - FQV Installation Manual

When an error occurs, a red LED on the operation panel turns on and an error code is displayed on the LED display.

The panel does not turn to the display sleep mode while the error code is shown.

Covering model numbers for residence:

Below is the list of the error codes. If the corrective action does not solve the error problem, a malfunction of the PCB is highly likely.

Error code	Error contents	Error code	Error contents
H9	HP ambient temperature thermistor error	FS	Communication error between main PCB to control PCB
HC	HP water outlet temperature thermistor error	E8	High inlet current error
J3	HP discharge temperature thermistor error	H8	Current error
JS	HP suction temperature thermistor error	L4	High temperature of module error
J6	HP Heat exchanger temperature thermistor error	LS	High outlet current error
J8	HP water inlet temperature thermistor error	P4	Module temperature thermistor error
H7	Tank temperature thermistor error	U2	High voltage error
E6	Compressor booting error	HJ	Water circuit error
H6	Compressor revolution error	EC	High water outlet error
uo	Refrigerant leakage error	E9	Water pump error
E1	Main PCB error	E7	Fan motor locked
E2 L7	Control PCB error	F3	Discharged temperature error

If you have any question about the Sanden Eco® PLUS Hot Water Heat Pump System which is not listed in our FAQ, please don't hesitate to email us info@pure-electric.com.au and we'll find the answer for you.