H85

Malfunction Decision Conditions

  • Initial Setting: Main PCB does not receive WLAN module data for 90 secs.
  • Normal Control: Main PCB does not receive WLAN module data for 10 mins repeating 2 times.
    • 5V power to WLAN module is turned off for 2s.
    • After 2s, 5V power to WLAN module is turned on & start initial setting.
    • WLAN LED Off & Timer LED blinking.

Malfunction Caused

  • Faulty lead wire connector connection.
  • Faulty indoor unit PCB.
  • Faulty WLAN module.

Troubleshooting

When abnormality indication starts again.
⚠
Caution For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component.
↓
Turn ON WLAN function. 5V supplied to WLAN module?
(Pin 1 & Pin 8)
NO
→
  • Replace main PCB.
YES
↓
  • Connector plug in properly.
    Check WLAN module lead wire continuity
NO
→
  • Properly plug in connector.
    Change the lead wire.
↓
▼
  • Replace WLAN module.
↓
▼
  • Comfort Cloud operation normal and WLAN LED is ON?
NO
→
  • Change the main PCB.
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