Troubleshooting for SkyAir Indoor Unit
SiEBE18-526
280
Troubleshooting
5.10 Malfunction of Suction Air Thermistor
Remote
Controller
Display
C9
Applicable
Models
FFQ-B, FHQ-BU
Method of
Malfunction
Detection
Malfunction detection is carried out by temperature detected by suction air temperature sensor.
Malfunction
Decision
Conditions
When the suction air temperature sensor’s thermistor becomes disconnected or shorted while
the unit is running.
Supposed
Causes
Failure of the sensor itself
Broken or disconnected wire
Failure of indoor unit PCB
Failure of connector contact
Troubleshooting
Check No.02
Refer to P.286
Disconnect the sunction air
temperature sensor (R1T)
from X19A on the indoor unit
PCB and measure the
resistance.
Connect correctly.
Suction air temperature
sensor replacement.
If contact is OK, replace
outdoor unit PCB.
Is the
thermistor normal?
(See note)
NO
YES
(Q0418)
NO
YES
Check contact of connector
Is it normal?
H
See
Check No. 02
for “Thermistor temperature and resistance characteristics”.
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Summary of Contents for Super Multi Plus D-Series
Page 1: ...SiEBE18 526 D Series Service Manual Applied Models zSuper Multi Plus Heat Pump...
Page 12: ...SiEBE18 526 List of Functions 1 Part 1 List of Functions 1 List of Functions 2...
Page 63: ...Refrigerant Flow for Each Operation Mode SiEBE18 526 52 Refrigerant Circuit...
Page 249: ...Instruction SiEBE18 526 238 System Configuration...
