(3) Serial Communication Error Identification Procedure
If the lamps on the main body show the following conditions after the completion of
In such a case, identify the breakdown section by using the following procedure.
NOTE Refer to "Method of
Lamp Operation Timer
Condition
E01
E12
< Before the Operation >
High Power
: Off
: Blinking
: Illuminated
Warning
For terminal strip short circuit work or
Release the terminal strip short circuit after the completion of
Caution
Do not perform the
Prohibit
< Convenient Tool for | Cable | Alligator Clip | |
Alligator Clip | |||
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< Check Items before Troubleshooting Serial Communication Start >
After confirming that the following errors do not exist, start the "Troubleshooting Serial Communication" in "Condition: E01 and E12".
1. | Mis | 6. | Reactor failure (defective insulation, etc.) |
2. | AC power failure | 7. | |
3. | Blown fuse | 8. | Overload Relay failure |
4. | Power Relay failure | 9. | Magnetic Coil failure (defective insulation, |
5. | Outdoor Fan Motor failure (defective insulation, etc.) | 10. Compressor failure (defective insulation, etc.) |
(3-1) Condition: E01
Troubleshooting Serial Communication
Is the voltage of about DC12V
or more given between the terminals
2 and 3 on the outdoor unit terminal strip
(Serial Communication Line) ?
(Fig. 1)
Yes
A
( Continued to the next page A. )
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B
( Continued to the next page B. )
34