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Daikin VRV III-S RXYMQ36 48PVJU Service Manual Page 156

60 hz.
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SiUS34-907
J3
3.22 "
" Malfunction of Discharge Pipe Thermistor (R2T)
J3
Remote
Controller
Display
Applicable
RXYMQ36 · 48PVJU
Models
Method of
Malfunction is detected from the temperature detected by discharge pipe temperature thermistor.
Malfunction
Detection
Malfunction
When a short circuit or an open circuit in the discharge pipe temperature thermistor is detected.
Decision
Conditions
 Defect of thermistor (R2T) for outdoor unit discharge pipe
Supposed
 Defect of outdoor unit PCB (A1P)
Causes
 Defect of thermistor connection
Troubleshooting
Be sure to turn off the power switch before connecting or disconnecting the connector, or parts may be damaged.
Caution
Confirm which thermistor is abnormal
using outdoor unit "monitor mode".
(Refer to P.105, 106)
connected to X12A of outdoor
measured after disconnecting
the thermistor R2T from the
The alarm indicator is displayed when the fan is being used also.
∗ Refer to "Thermistor Resistance / Temperature Characteristics" table on P.241.
Troubleshooting
Connector is
NO
unit PCB (A1P).
YES
Resistance
is normal when
NO
outdoor unit PCB.
(5.0kW to
640kW)
YES
Troubleshooting by Indication on the Remote Controller
Connect the connector and turn
on again.
Replace the thermistor (R2T).
Replace the outdoor unit PCB
(A1P).
147

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  • cp shukla Feb 16, 2016 06:50:
    RXYQ18PAY6 service manual & vrv Fulform