1. The main power is turned on while the transmission wires
between the indoor unit and the outdoor unit are not connected
(open circuit at section A) / Symptom: / Operation of indoor unit
No. 1 and indoor unit No. 3 is possible. / However, “CHECK”
flashes in the remote control display for 3-5 minutes after the
main power is turned on.
- Remote control... “CHECK” flashes
- Indoor unit No. 2... LED2 on the printed circuit board flashes
(both master and slave units)
- Outdoor unit No. 2... LED3 and LED7 on the printed circuit
board flash
2. The main power is turned on while the power supply wires
between the indoor units are not connected (open circuit at
section B) / Symptom: / Operation of indoor unit No. 1 and indoor
unit No. 3 is possible / However, if operation is then started in
this condition, the combination of the 28BB outdoor unit and the
14BB4 indoor unit (master unit) will result in abnormal operation
of indoor unit No. 2. / / If operation continues, an abnormality
will occur on the refrigeration cycle and operation will stop
- Remote control... “CHECK” flashes (indoor unit No. 2
abnormality)
- Indoor unit No. 2... LED2 on the printed circuit board flashes
(both master and slave units)
- Outdoor unit No. 2... The LEDs on the printed circuit board
flash
3. The main power is turned on while the remote control connection
cord is not connected (open circuit at section C) / Symptom: /
128
To Next Page
Loading...
