Outdoor Unit Heat Exchanger - Daikin ALTHERMA HT ERSQ 011 AA Service Manual

ESIE09-08A
3.30 "J6 " Outdoor Unit: Malfunction of Thermistor (R6T) for

Outdoor Unit Heat Exchanger

J6
Remote Control
Display
Applicable Models ER*Q 011~016*
Method of
Malfunction is detected from the temperature detected by the heat exchanger thermistor.
Malfunction
Detection
Malfunction When a short circuit or an open circuit in the heat exchange thermistor is detected.
Decision Conditions
 Defect of thermistor (R6T) for outdoor unit heat exchanger
Supposed Causes
 Defect of outdoor unit PC board (A1P)
Troubleshooting
 Refer to thermistor resistance / temperature characteristics table on P251.
Troubleshooting
Be sure to turn off power switch before connecting or disconnecting connector,
otherwise parts may be damaged.
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).
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