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Troubleshooting Guide
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Troubleshooting
CH03![](/images/new-backgrounds/1056959/5695979xi5.webp)
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Display | Title |
| Cause of error |
| Check point & Normal condition | ||||||||
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| Communication | • | Open / Short |
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| • Connection of wire | ||||||
03 |
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| • Main PCB Volt. DC12V | |||||||||
Wired R/C | • | Wrong connection |
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| • Noise interference | |||||||||||
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| Wired R/C |
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| Indoor Unit | ||||||
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| 12V |
| S GND | 12V | S GND |
12Vdc
V
Check the Volt.
12Vdc
V
Check the Volt.
Check Point
1.Check the wire connection. (Open / Short) → Repair the connection
2.Check the soldering state of connector. (Soldered poorly) → Repair or Change the PCB.
3.Check the volt. Of main PCB power source. (DC 12V, DC 5V) → Repair or Change the main PCB.
4.Check the installation of wired remote controller. (Noise interference) → Adjust the state of installation
40Ceiling Cassette Air Conditioner