Daikin VRV EMERION REYQ-AATJA Service Manual page 317

SiUS372201EB
Seven-segment display
16I-## _ _ 1 6 0 9 - # #
16J-## _ _ 1 6 1 0 - # #
16L-## _ _ 1 6 1 2 - # #
16M-## _ _ 1 6 1 3 - # #
16N-## _ _ 1 6 1 4 - # #
16O-## _ _ 1 6 1 5 - # #
16P-## _ _ 1 6 1 6 - # #
16Q-## _ _ 1 6 1 7 - # #
16S-## _ _ 1 6 1 9 - # #
16U-## _ _ 1 6 2 1 - # #
16V-## _ _ 1 6 2 2 - # #
16W-## _ _ 1 6 2 3 - # #
20A-## _ _ 2 0 0 1 - # #
30A-## _ _ 3 0 0 1 # # #
31A-## _ _ 3 1 0 1 # # #
31B-## _ _ 3 1 0 2 # # #
31C-## _ _ 3 1 0 3 # # #
43A-## _ _ 4 3 0 1 - 0 0
43B-## _ _ 4 3 0 2 - 0 0
43C-## _ _ 4 3 0 3 - 0 0
43D-## _ _ 4 3 0 4 - 0 0
47A-## _ _ 4 7 0 1 - 0 0
 Depending on operating condition, partial refrigerant shortage may be detected even though
correct refrigerant amount is in the system. Please refer to Refrigerant Shortage Check on page
457 for the analysis.
Part 6 Service Diagnosis
Description
Heat exchanger liquid pipe thermistor
—
1 failure prediction (Tf1)
Heat exchanger liquid pipe thermistor
—
2 failure prediction (Tf2)
Compressor suction thermistor failure
—
prediction (Ts)
Accumulator inlet thermistor failure
—
prediction (TsA)
Receiver gas purge thermistor failure
—
prediction (Tgi)
Liquid pipe thermistor failure
—
prediction (TL)
Heat exchanger gas pipe thermistor 1
—
failure prediction (Tg1)
Heat exchanger gas pipe thermistor 2
—
failure prediction (Tg2)
Subcooling injection thermistor failure
—
prediction (Tm)
Electrical box air outlet thermistor
—
failure prediction (Tjeva)
High pressure sensor failure
—
prediction (HP)
Low pressure sensor failure
—
prediction (LP)
Heat exchanger freeze up prediction
—
Indoor unit electronic expansion valve
leak (evaporator) prediction
_ _ #
Indoor unit thermistor failure
_ _ #
prediction (Th1)
Indoor unit thermistor failure
_ _ # prediction (Th2)
Indoor unit thermistor failure
_ _ # prediction (Th3)
Refrigerant shortage and refrigerant
— leakage prediction (detected during
non-operation)
Refrigerant shortage and refrigerant
— leakage prediction (detected during
cooling operation)
Refrigerant shortage and refrigerant
leakage prediction (detected during
—
cooling and heating simultaneous
operation)
Refrigerant shortage and refrigerant
— leakage prediction (detecting during
heating operation)
Outdoor-indoor communication failure
prediction
—
Possible cause
■ Tf1 sensor failure Refer to J8 troubleshooting.
■ Tf2 sensor failure Refer to J8 troubleshooting.
■ Ts sensor failure Refer to J5 troubleshooting.
■ TsA sensor failure Refer to J5 troubleshooting.
■ Tgi sensor failure Refer to J9 troubleshooting.
■ TL sensor failure Refer to J7 troubleshooting.
■ Tg1 sensor failure Refer to J6 troubleshooting.
■ Tg2 sensor failure Refer to J6 troubleshooting.
■ Tm sensor failure Refer to J7 troubleshooting.
■ Tjeva sensor failure Refer to J9 troubleshooting.
■ HP sensor failure Refer to JA troubleshooting.
■ LP sensor failure Refer to JC troubleshooting.
■ Tb sensor failure Melt frost on the outdoor heat exchanger.
■ Freeze
■ Tb sensor failure Th1: Refer to C9 troubleshooting.
■ Indoor leakage Th2: Refer to C4 troubleshooting.
Th3: Refer to C5 troubleshooting.
LP: Refer to JC troubleshooting.
If the above error is not seen, the corresponding
indoor electronic expansion valve and expansion
valve coil can be considered.
■ Th1 sensor failure Th1: Refer to C9 troubleshooting.
Th2: Refer to C4 troubleshooting.
■ Th2 sensor failure
■ Th3 sensor failure Th3: Refer to C5 troubleshooting.
Th1: Refer to C9 troubleshooting.
■ Th1 sensor failure
■ Th2 sensor failure Th2: Refer to C4 troubleshooting.
■ Th3 sensor failure Th3: Refer to C5 troubleshooting.
■ Th1 sensor failure Th1: Refer to C9 troubleshooting.
■ Th2 sensor failure Th2: Refer to C4 troubleshooting.
■ Th3 sensor failure Th3: Refer to C5 troubleshooting.
■ HP sensor failure HP: Refer to JA troubleshooting.
■ Refrigerant leak or shortage If the above error is not seen, refrigerant shortage
or leakage from the system can be considered. ()
■ Refrigerant leak or shortage Check for refrigerant leakage.
Check for refrigerant shortage. ()
■ Refrigerant leak or shortage Check for refrigerant leakage.
Check for refrigerant shortage. ()
■ Refrigerant leak or shortage Check for refrigerant leakage.
Check for refrigerant shortage. ()
■ Outdoor unit control PCB
failure
■ Indoor PCB failure
■ Outdoor-indoor
communication line failure
Troubleshooting by Error Code
Tech tips
—
310