Troubleshooting
Page 92
5.2 E2/E3/E4 for ceiling&floor type and super slim cassette type&E4/E5/F2 for A6 duct
type (Open circuit or short circuit of temperature sensor diagnosis and solution)
Description: If the sampling voltage is lower than 0.06V or higher than 4.94V, the LED will display the failure.
Recommended parts to prepare:
• Wiring mistake
• Faulty sensor
• Faulty PCB
Troubleshooting and repair:
Check the connection betw een
tem perature sensor and PC B.
Replace th e indoor PC B or th e
outdoor electronic control box.
Is it w ith in a c c e p ta b le
param eters?
Is it p r o p e r ly w ire d ?
Ensure proper connections.NO
M easure the resistance value
o f th e se n so r.
YES
Repla ce th e Sensor.NO
YES
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