Troubleshooting
TS05-IDU: Open circuit or short circuit of indoor temperature sensor(T1, T2) diagnosis and
solution
Description: If the sampling voltage is lower than 0.06V or higher than 4.94V, the LED displays the failure code.
Recommended parts to prepare:
• Connection wires
• Sensors
• Indoor main PCB
Troubleshooting and repair:
Check the connection between
temperature sensor and PCB.
Replace the indoor main PCB
Is it within acceptable
parameters?
Is it properly wired? Ensure proper connections.
NO
Measure the resistance value
of the sensor.
YES
Replace the sensor.
NO
YES
Note: This picture and the value are only for reference, actual appearance and value may vary.
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