Product data

HWError Code.doc 02/09/01
• Check CN1 plug for voltage
If voltage is recorded at the CN1 plug and LED does not flash, replace
board.
Insufficient cooling,
Insufficient Heating
(Heat Pump)
• Check for blocked air filter – clean filter
• Outdoor unit obstructed – remove obstruction
• Check temperature setting – use remote to change temperature
• Fan speed too low – change fan speed
• Check operation mode – Change to cooling mode
• Check for open windows and doors
Error code 6 (reversing valve
malfunction) for cooling only
systems
• Check indoor thermistor
• Check refrigerant charge
• Check FJ1 switch on main circuit board (s/b off)
Unit stops during operation
• Off timer is operating
• Room temperature has reached set point