Panasonic CS-A24BB4P, Service Manual

Page: 127 / 208

not illuminate and the unit does not operate at all
- Outdoor unit... The LEDs on the printed circuit board flash
and operation stops
3. The main power is turned on while the remote control connection
cord is not connected (open circuit at section C) / Symptom:
- Remote control unit.. . Display of “No power supply”
- Indoor unit (master)... LED1 on the printed circuit board stays
illuminated and the unit does not operate
- Indoor unit (slave)... LED1 on the printed circuit board stays
illuminated and the unit does not operate
- Outdoor unit... LED1 on the printed circuit board stays
illuminated and the unit does not operate
Remedy
1. Turn off the main power. /
2. Connect the disconnected wires correctly. /
3. Turn on the main power. /
4. After 1 minute, start the operation using the remote control. /
(Indoor units’ operation will start according to the remote control
setting.) / (Outdoor unit operation will start after 3-5 minutes.)
/ If slave units do not operate even after the wiring has been
corrected (automatic addressing is not possible)
1. Check that DIP switches 1 to 4 and DIP switch 8 are all set to
OFF, and then stop operation. /
2. Press the ADDRESS RESET button (SW3) at the outdoor unit for
approximately 4 seconds / (The self-diagnosis LEDs 2 to 8 will
illuminate in order, and the system is reset once they are all
illuminated.)
/ The above procedure cannot be used to carry out automatic
address resetting during group control. /
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