J6" Outdoor Unit: Malfunction Of Thermistor (R6T) For Outdoor Unit; Heat Exchanger; J6" Outdoor Unit: Malfunction Of Thermistor (R6T) For Outdoor Unit  Heat Exchanger - Daikin ALTHERMA HT Service Manual

ESIE09-08B
3.30 "J6 " Outdoor Unit: Malfunction of Thermistor (R6T) for
Outdoor Unit Heat Exchanger
J6
Remote Control
Display
ER*Q 011~016*
Applicable
Models
Malfunction is detected from the temperature detected by the heat exchanger thermistor.
Method of
Malfunction
Detection
When a short circuit or an open circuit in the heat exchange thermistor is detected.
Malfunction
Decision
Conditions
 Defect of thermistor (R6T) for outdoor unit heat exchanger
Supposed
 Defect of outdoor unit PC board (A1P)
Causes
Troubleshooting
 Refer to thermistor resistance / temperature characteristics table on P239.
Troubleshooting
Be sure to turn off power switch before connect or disconnect
connector, or parts damage may be occured.
Caution
Connector
is connected
NO
to X13A of outdoor unit
PC board (A1P)
YES
Resistance
is normal when
measured after
NO
disconnecting the thermistor
(R6T) from the outdoor
unit PC board.
(3.5kW~360kW)
YES
Troubleshooting by Indication on the Remote Controller
Connect the thermistor and turn on again.
Replace the thermistor (R6T).
Replace outdoor unit PC board (A1P).
(V3074)
171