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12) Troubleshooting CH51, CH60
51
60
Over capacity
EEPROM
Check sum
• Over capacity
Combination
• Check sum error
• Check the indoor unit capacity.
• Check the combination table.
• Check the PCB ASM P/No.
• Check the poor soldering.
Display
code
Title Cause of error Check point & Normal condition
Check Point
• CH 51
1. Check the indoor unit capacity.
• CH 60
1. Check the insertion condition of EEPROM.
2. Check the poor soldering
Troubleshooting Guide
Model Gross max. capacity Max. single indoor unit capacity
A2UW146FA0
A2UW146FA1 21k 12k
A2UW146FA2
A2UW166FA0
A2UW166FA1 24k 12K
A2UW186FA0
A3UW186FA0 30k 18k
A3UW246FA0 33k 24K
A4UW246FA0
A4UW306FA0
39k 24K
A6UW406FA0 52k 24K
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