J7" Outdoor Unit: Malfunction Of Thermistor (R7T) For Outdoor Unit Liquid Pipe - Daikin ERQ Service Manual

Troubleshooting by Indication on the Remote Controller
J7
3.27 " " Outdoor Unit: Malfunction of Thermistor (R7T) for
Outdoor Unit Liquid Pipe
J7
Remote
Controller
Display
Applicable
ERQ 125 ~ 200 A7V1
Models
Method of Malfunction is detected from the temperature detected by the liquid pipe thermistor.
Malfunction
Detection
Malfunction
When a short circuit or an open circuit in the heat exchange thermistor is detected.
Decision
Conditions
Supposed
Causes
Troubleshooting
∗ Refer to thermistor resistance / temperature characteristics table on P232.
196
Defect of thermistor (R7T) for outdoor unit liquid pipe
Defect of outdoor unit PC board (A1P)
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Connector
is connected to X13A of
outdoor unit PC board
(A1P).
YES
Resistance
is normal when
measured after
disconnecting the thermistor
(R4T) from the outdoor
unit PC board.
(3.5kΩ~
360kΩ)
YES
NO
NO
: http://splitoff.ru/tehn-doc.html
ESIE09-05
Connect the thermistor and turn
on again.
Replace the thermistor (R6T).
Replace outdoor unit PC board
(A1P).
(V3074)
Troubleshooting