9-8
9-2-7 Operation condition secession error
Indoor display
7-SEG DISPLAY DESCRIPTION
C440
Prohibit Operation Condition Error (Heating)
C441
Prohibit Operation Condition Error (Cooling)
Outdoor display
Operation condition secession
LED ON
LED BLINKING
LED OFF
1. Checklist :
1) Check the temperature around the outdoor unit.
2. Troubleshooting procedure
NO
YES
YES
Restart after power off
Terminate the service
Is the operation condition secession
error appeared again?
* Heating mode *
Is the outdoor temperature over 104°F or
under -
22
°F?
* Cooling mode *
Is the outdoor temperature under
19.4
°F?
The temperature condition is too poor to
operate. Wait until temperature is changed
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