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Daikin VRV III-S RXYMQ36 48PVJU Service Manual Page 155

60 hz.
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Troubleshooting by Indication on the Remote Controller
H9
3.21 "
" Malfunction of Thermistor (R1T) for Outdoor Air
H9
Remote
Controller
Display
Applicable
RXYMQ36 · 48PVJU
Models
Method of
Malfunction is detected from the temperature detected by the outdoor air thermistor.
Malfunction
Detection
Malfunction
When the outside air temperature thermistor has short circuit or open circuit in operation
Decision
Conditions
 Defective thermistor connection
Supposed
 Defect of thermistor (R1T) for outdoor air
Causes
 Defect of outdoor unit PCB (A1P)
Troubleshooting
Caution
Be sure to turn off the power switch before connecting or disconnecting the connector, or parts may be damaged.
Confirm which thermistor is abnormal
using outdoor unit " monitor mode".
(Refer to P.105, 106)
connected to X11A of outdoor
measured after disconnecting
the thermistor (R1T) from
the outdoor unit PCB.
∗ Refer to "Thermistor Resistance / Temperature Characteristics" table on P.241.
146
Connector is
NO
PCB (A1P).
YES
Resistance
is normal when
NO
(3.5kW to
360kW)
YES
Connect the connector and turn
on again.
Replace the thermistor (R1T).
Replace the outdoor unit PCB
(A1P).
Troubleshooting
SiUS34-907

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