J3" Outdoor Unit: Malfunction Of Discharge Pipe Thermistor (R2T) - Daikin ALTHERMA HT Service Manual

ESIE09-08B
3.26 "J3 " Outdoor Unit: Malfunction of Discharge Pipe
Thermistor (R2T)
J3
Remote Control
Display
ER*Q 011~016*
Applicable
Models
Malfunction is detected from the temperature detected by discharge pipe temperature
Method of
thermistor.
Malfunction
Detection
When a short circuit or an open circuit in the discharge pipe temperature thermistor is detected.
Malfunction
Decision
Conditions
 Defect of thermistor (R2T) for outdoor unit discharge pipe
Supposed
 Defect of outdoor unit PC board (A1P)
Causes
Troubleshooting
 Refer to thermistor resistance / temperature characteristics table on P240.
Troubleshooting
Be sure to turn off power switch before connect or disconnect
connector, or parts damage may be occured.
Caution
Connector
is connected to
NO
X12A of outdoor unit PC
board (A1P).
YES
Resistance is
normal when
measured after
NO
disconnecting the thermistor
R2T from the outdoor unit PC
board.
(5.0kΩ~640kΩ)
YES
Troubleshooting by Indication on the Remote Controller
Connect the thermistor and turn on
again.
Replace the thermistor (R2T).
Replace outdoor unit PC board
(A1P).
(V3072)
167