J3-19-25-31 - Discharge Thermistor R22T Short Circuit; J3-38-42-44 - Compressor Body Thermistor R9T Open Circuit; J3-39-43-45 - Compressor Body Thermistor R9T Short Circuit - Daikin VRV IV+ Service Manual

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Trigger Effect
Compressor (M2C) Unit will stop
discharge thermistor operating.
R22T open circuit or
out of range.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed
order.
1 Perform a check of the discharge pipe thermistor. See
"3.17 Thermistors" on page 128.
Possible cause: Faulty discharge pipe thermistor or
connector fault.
2 Perform a check of the main PCB. See
page 106.
Possible cause: Faulty main PCB.
INFORMATION
If all procedures listed above have been performed and the
problem is still present, contact the helpdesk.
2.3.42 J3-19-25-31 – Discharge thermistor R22T
short circuit
Main error code Sub error code
J3 19
25
31
INFORMATION
Main, Sub 1 and Sub 2 indications are relevant in multiple
outdoor unit configurations. Main outdoor unit is the unit to
which F1‑F2 IN transmission line is connected. Main, Sub
1 and Sub 2 outdoor units can be identified by field setting
1‑00.
Trigger Effect
Compressor (M2C) Unit will stop
discharge thermistor operating.
R22T short circuit or
out of range.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed
order.
1 Perform a check of the discharge pipe thermistor. See
"3.17 Thermistors" on page 128.
Possible cause: Faulty discharge pipe thermistor or
connector fault.
2 Perform a check of the main PCB. See
page 106.
Possible cause: Faulty main PCB.
INFORMATION
If all procedures listed above have been performed and the
problem is still present, contact the helpdesk.
RYYQ+RYMQ+RXYQ8~20U7Y1B
VRV IV+ Heat Pump
ESIE18-14 – 2019.07
2.3.43
Reset
Manual reset via user
interface.
Main error code
Automatic reset when
J3
thermistor read-out is
within range.
Trigger
Compressor (M2C)
"3.9 Main PCB" on
body temperature
thermistor R9T open
circuit or out of range.
To solve the error code
1 Perform a check of the compressor body thermistors. See
Unit
Main
Sub 1
2 Perform a check of the main PCB. See
Sub 2
Reset 2.3.44
Manual reset via user
interface.
Main error code
Automatic reset when
J3
thermistor read-out is
within range.
Trigger
Compressor (M2C)
"3.9 Main PCB" on
body temperature
thermistor R9T short
circuit or out of range.
To solve the error code
J3-38-42-44 – Compressor body
thermistor R9T open circuit
Sub error code
38
42
44
INFORMATION
Main, Sub 1 and Sub 2 indications are relevant in multiple
outdoor unit configurations. Main outdoor unit is the unit to
which F1‑F2 IN transmission line is connected. Main, Sub
1 and Sub 2 outdoor units can be identified by field setting
1‑00.
Effect
Unit will stop
operating.
INFORMATION
It is recommended to perform the checks in the listed
order.
"3.17 Thermistors" on page 128.
Possible cause: Faulty compressor body thermistor or
connector fault.
page 106.
Possible cause: Faulty main PCB.
INFORMATION
If all procedures listed above have been performed and the
problem is still present, contact the helpdesk.
J3-39-43-45 – Compressor body
thermistor R9T short circuit
Sub error code
39
43
45
INFORMATION
Main, Sub 1 and Sub 2 indications are relevant in multiple
outdoor unit configurations. Main outdoor unit is the unit to
which F1‑F2 IN transmission line is connected. Main, Sub
1 and Sub 2 outdoor units can be identified by field setting
1‑00.
Effect
Unit will stop
operating.
INFORMATION
It is recommended to perform the checks in the listed
order.
2 Troubleshooting
Unit
Main
Sub 1
Sub 2
Reset
Manual reset via user
interface.
Automatic reset when
thermistor read-out is
within range.
"3.9 Main PCB" on
Unit
Main
Sub 1
Sub 2
Reset
Manual reset via user
interface.
Automatic reset when
thermistor read-out is
within range.
Service manual
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