Carrier Cassette Air Conditioner Fault Codes
Once a failure occurs with the indoor unit in operation, the green unit LED flashes at intervals of 0.5 seconds.
The fault code is deduced from the number of times the green LED flashes, blocking unit operation. Between one flash cycle and the next one, a pause of 5 seconds elapses.
Unit operation and maintenance
Read this instruction manual thoroughly before using the unit.
• This unit complies with UL 1995 directive (Usa and Canada).
• Check that the main power supply voltage and frequency are as
required for the unit; the power source must be sufficient to
operate all other appliances connected to the same line.
Also ensure that local building codes and NEC (National electrical
code) requirements have been followed for the main supply circuit.
• To avoid personal injury or damage to unit,do not service until all
power sources are shut down, locked out, and tagged out.
Failure to do so could result in personal injury or unit damage.