Troubleshooting
3-2
4-1
4. Troubleshooting
4-1. Things to check before diagnosis
4-1-1. Errors displayed on the Wired Remote Controller
Error codes for the Wired Remote Controller and the product connected to your Wired Remote Controller will be
displayed in the LCD display.
■ Wired remote controller error codes
Indication
Description
Remarks
Communication error between wired remote controller and indoor/ERV units
after successful communication.
(communication stop for 3 minutes after detection)
No communication between Main and Sub Wired Remote Controllers.
(communication stop for 3 minutes after detection)
When tracking between the Wired Remote Controller and indoor units /
ventilators (ERV) is not complete for more than 5 minutes.
(Including communication error between indoor units and outdoor units)
Over 16 indoor units and ventilators (ERV) installed.
Reset is required after checking the number of installed indoor units and
ventilators (ERV).
Temperature sensor Open/Short error
Can be detected by
the product with
a temperature
sensor.
EEPROM error
• For the error codes for your indoor/outdoor units and ventilator(ERV), refer to the installation manual of each
device.
NOTE