Pj-10-17-18 - Capacity Setting Mismatch For Fan; Inverter Pcb A7P; Pj-12-13-14 - Capacity Setting Mismatch For Inverter; Pcb A6P - Daikin VRV IV+ Service Manual

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To solve the error code
INFORMATION
It is recommended to perform the checks in the listed
order.
1 Check if the correct spare part is installed for the main PCB.
See "3.9 Main PCB" on page 106. Check dips switch setting for
spare part main PCB.
Possible cause: Incorrect spare part main PCB or incorrect
dips switch setting.
2 Perform a check of the main PCB. See
page 106.
Possible cause: Faulty main PCB.
3 Perform a check of the fan inverter PCB A4P. See
inverter PCB" on page 92.
Possible cause: Faulty fan inverter PCB A4P.
INFORMATION
If all procedures listed above have been performed and the
problem is still present, contact the helpdesk.
2.3.107 PJ-10-17-18 – Capacity setting mismatch
for fan inverter PCB A7P
Main error code Sub error code
PJ 10
17
18
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
Main PCB detects Unit will stop
other type PCB than operating.
set in EEPROM or
wrong dip switch
setting on spare part
main PCB.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed
order.
1 Check if the correct spare part is installed for the main PCB.
See "3.9 Main PCB" on page 106. Check dips switch setting for
spare part main PCB.
Possible cause: Incorrect spare part main PCB or incorrect
dips switch setting.
2 Perform a check of the main PCB. See
page 106.
Possible cause: Faulty main PCB.
3 Perform a check of the fan inverter PCB A7P. See
inverter PCB" on page 92.
Possible cause: Faulty fan inverter PCB A7P.
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
2.3.108 PJ-12-13-14 – Capacity setting mismatch
Main error code
PJ
"3.9 Main PCB" on
"3.6 Fan
Trigger
Main PCB detects
other type PCB than
set in EEPROM or
wrong dip switch
setting on spare part
main PCB.
To solve the error code
Unit
Main
1 Check if the correct spare part is installed for the main PCB.
Sub 1
Sub 2
2 Perform a check of the main PCB. See
3 Perform a check of the inverter PCB A6P. See
Reset
Manual reset via user
interface.
Power reset at
outdoor unit.
2.3.109 U0-05 – Refrigerant shortage detection
Trigger
Refrigerant shortage
detection during
cooling.
To solve the error code
"3.9 Main PCB" on
1 Check that all stop valves of the refrigerant circuit are open.
"3.6 Fan
2 Perform a check of all expansion valves. See
3 Perform a check of the refrigerant low pressure sensor. See
for inverter PCB A6P
Sub error code
12
13
14
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.
See "3.9 Main PCB" on page 106. Check dips switch setting for
spare part main PCB.
Possible cause: Incorrect spare part main PCB or incorrect
dips switch setting.
page 106.
Possible cause: Faulty main PCB.
PCB" on page 99.
Possible cause: Faulty inverter PCB A6P.
INFORMATION
If all procedures listed above have been performed and the
problem is still present, contact the helpdesk.
Effect
Unit keeps running.
INFORMATION
It is recommended to perform the checks in the listed
order.
See "4.2 Refrigerant circuit" on page 133.
Possible cause: Closed stop valve in the refrigerant circuit.
valve" on page 89.
Possible cause: Faulty expansion valve.
"3.16 Refrigerant low pressure sensor" on page 126
2 Troubleshooting
Unit
Main
Sub 1
Sub 2
Reset
Manual reset via user
interface.
Power reset at
outdoor unit.
"3.9 Main PCB" on
"3.8 Inverter
Reset
Auto reset.
"3.5 Expansion
Service manual
51