Description: Broken external temperature thermistor • The input voltage is 4.5 V or more.
Causes: Poor contact in the humidity sensor PCB connector terminals. Defective external temperature thermistor.
Remedy: Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Replace the humidity sensor PCB and check for correct operation.
Code: C7810
Description: Short-circuited external temperature thermistor • The input voltage is 0.5 V or less.
Causes: Defective external temperature thermistor. Defective humidity sensor PCB.
Remedy: Replace the humidity sensor PCB and check for correct operation. Replace the humidity sensor PCB and check for correct operation.