C4", "C9" Thermistor Abnormality - Daikin SkyAir Service Manual

SiBE28-804

5.14 "C4", "C9" Thermistor Abnormality

Remote The table below describes the two thermistor abnormalities.
Controller
Error
Display
C4
C9
LED indications The table below shows the LED indications.
Operation
Normal
Malfunctioning
Error generation The error is generated when during compressor operation:
Supposed The possible causes are:
Causes
Checking Refer to P227.
thermistors
Troubleshooting
Description
Malfunctioning heat exchanger thermistor system.
Malfunctioning suction air thermistor system.
Thermistor input > 4.96 V, or
Thermistor output < 0.04 V.
Malfunctioning connector connection
Malfunctioning thermistor
Malfunctioning PC board
Broken or disconnected wire.
Troubleshooting by Remote Controller Display / LED Display
HAP (green)
5
5
HBP (green)
5
5
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