Part 4 Trouble Shooting
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[Connector with capacitor in CN_Flash_Writer or CN_Flash]
■ Applied Model : Multi/Single Outdoor PCBA
(Refer to PCB P/no of attached file)
■ Applied S/No : ~ 301xxxxxx (~ Jan, 2013)
1. Symptom
-. Outdoor unit cannot communicate with Indoor unit.
-. Outdoor reset then work normal.
: It happens intermittently
-. LEDs for showing power-on and communication status are not on or not
blinking in outdoor inverter PCBA
2. Causes
-. Noise disturb the outdoor unit communication with indoor unit
3. Improvement
-. Inserting small connector with capacitor in Inverter PCBA of Outdoor Unit
1)Connector can be applied to the list(PCBA P/No) on the next page
2)Guide where you put it on the next page
-. It helps outdoor unit communicate with indoor unit better than before and reduce the noise level
How to measure for Environment Noise
Connector with capacitor in CN_FLASH and CN_CNVSS
6.7 Troubleshooting Outdoor Error
CH 05/53 (Indoor/Outdoor Device Communication Error) → Detection by indoor devices
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