Daikin VRV III-S RXYMQ36 48PVJU, Руководство по обслуживанию

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Troubleshooting by Indication on the Remote Controller SiUS34-907
148 Troubleshooting
3.23 “
J5
” Malfunction of Thermistor (R3T, R5T) for Suction Pipe
1, 2
Remote
Controller
Display
J5
Applicable
Models
RXYMQ36 · 48PVJU
Method of
Malfunction
Detection
Malfunction is detected from the temperature detected by the thermistor for suction pipe 1, 2.
Malfunction
Decision
Conditions When a short circuit or an open circuit in the thermistor for suction pipe 1, 2 are detected
Supposed
Causes

Defect of thermistor (R3T or R5T) for outdoor unit suction pipe

Defect of outdoor unit PCB (A1P)

Defect of thermistor connection
Troubleshooting
∗
Refer to “Thermistor Resistance / Temperature Characteristics” table on P.241.
Replace the thermistor (R3T or
R5T).
Resistance
is normal w hen
meas u red after disconnecting
the thermistor (R3T or R5T)
from the o u tdoor u nit PCB.
(3.5k
W
to
360k
W
)
Connector is
connected to X12A of o u tdoor
u nit PCB. (A1P)
Replace the o u tdoor u nit PCB
(A1P).
N O
Connect the connector and t u rn
on again.
N O
YES
Caution
Be s u re to t u rn off the po w er s w itch b efore connecting or disconnecting the connector, or parts may b e damaged.
Confirm w hich thermistor is a b normal
u sing o u tdoor u nit "monitor mode".
(Refer to P.105, 106)
YES