Error, fault and alarm codes of products - what each code means, its causes and what to do - read from the manufacturers’ manuals, with the manual page each answer comes from.
Reverse VDD (electric air clean power supply circuit abnormal) The manual's first action is: “-Check if front panel and door are closed. -Check if main switch for open/close operation is opened. -Controller PCB defect…
Wire remote controller error indicates communication failure between evaporator and wire remote controller. The manual's first action is: “-Check wiring between evaporator and wire remote controller. Check for DC 12V …
Outdoor unit discharge temperature 1 error The manual lists no action for this code.
Outdoor unit inverter PCB error The manual lists no action for this code.
The outdoor unit main PCB has an error. The manual lists no action for this code.
The indoor unit fan motor 1 has an error. The manual lists no action for this code.
Indoor unit heat exchanger temperature thermistor error The manual lists no action for this code.
Indoor unit room temp. thermistor error The manual lists no action for this code.
The indoor unit manual auto switch error has occurred. The manual lists no action for this code.
12.1 on the Fujitsu General 410A is listed in the manual as: Indoor unit main PCB error. The manual lists no action for this code.
The system detected an external communication error. The manual lists no action for this code.
Remote controller communication error The manual lists no action for this code.
Serial communication error between indoor/outdoor units The manual lists no action for this code.
Outdoor unit discharge temperature 1 error The manual lists no action for this code.
The outdoor unit 4-way valve has an error. The manual lists no action for this code.