Maintenance, Troubleshooting And After-Sale Service - Hitachi HCWA21NEWH Installation And Operation Manual

Maintenance, troubleshooting and after-sales service
Maintenance
Wipe the LCD or the body of the wired controller with a dry cloth.
If the dirt on the surface cannot be removed, soak the cloth in neutral detergent diluted with water,
squeeze the cloth tightly and clean the surface. Wipe the surface with a dry cloth.
Do not use any thinner, organic solvents, or strong acid.
Troubleshooting and After-sales Service
When the air conditioner malfunctions,
occurring, please consult your local dealer or after-sales service.
Error code
Error indicator
will be displayed on the LCD, indicating that error is
15