Daikin RZQ140B7W1B [224/326] Malfunction of thermistor system h9 j3 j5 j6

Daikin RZQ140B7W1B [224/326] Malfunction of thermistor system h9 j3 j5 j6
Error Codes: Outdoor Units ESIE05-03
3–76 Part 3 Troubleshooting
3
1
3
4
5
3.12 Malfunction of Thermistor System (H9, J3, J5, J6)
Remote Controller
Display
H9, J3, J5, J6
Method of
Malfunction
Detection
Abnormality is detected according to the temperature detected by each individual thermistor.
Malfunction
Decision
Conditions
When thermistor is disconnected or short-circuited during operation
Supposed Causes
P Faulty thermistor
P Faulty connection of connector
P Faulty outdoor unit PC board (control PC board)
Troubleshooting
Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
YES
YES
NO
Check connectors for
connection.
Connect correctly.
Replace the thermistor.
Replace the outdoor unit PC board
(control PC board).
Remove thermistor from
outdoor unit PC board,
then measure the
resistance using a tester.
H9 : Malfunction of outdoor temperature thermistor system
J3 : Malfunction of discharge pipe thermistor system
J5 : Malfunction of suction pipe thermistor system
J6 : Malfunction of heat exchange thermistor
Normal?
Normal?
NO
* See page 3-107 and page 3-108 for “Thermistor temperature/Resistance characteristics”.
ESIE05-03.book Page 76 Wednesday, April 6, 2005 4:09 PM

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