E3-02-04-06 - High Pressure Error; E3-07 - High Pressure Switch Reset Error; E3-13-14-15 - Liquid Stop Valve Check Error - Daikin VRV IV+ Service Manual

2 Troubleshooting
2.3.6 E3-02-04-06 – High pressure error
Main error code Sub error code
E3 02
04
06
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
High pressure control Unit will stop
(by sensor) active operating.
due to pressure
>safety value certain
times within certain
minutes, see
"6.6 Safety
devices" on
page 183.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed
order.
1 Check that all stop valves of the refrigerant circuit are open.
See "4.2 Refrigerant circuit" on
Possible cause: Closed stop valve in the refrigerant circuit.
2 Check the required space around the outdoor unit heat
exchanger. See "4.3 External factors" on
Possible cause: Insufficient air flow or air by‑pass due to
required space specifications not met.
3 Clean the outdoor heat exchanger. See
page 140.
Possible cause: Dirty outdoor heat exchanger.
4 Perform a check of the refrigerant high pressure sensor. See
"3.15 Refrigerant high pressure sensor" on
Possible cause: Faulty refrigerant high pressure sensor.
5 Check if the refrigerant circuit is correctly charged. See
"4.2 Refrigerant circuit" on page 133.
Possible cause: Refrigerant overcharge.
6 Check for the presence of non‑condensables and/or humidity in
the refrigerant circuit. See "4.2 Refrigerant circuit" on
Possible cause: Non‑condensables and/or humidity in the
refrigerant circuit.
7 Check if the refrigerant circuit is clogged. See
circuit" on page 133.
Possible cause: Clogged refrigerant circuit.
8 Perform a check of the condenser side expansion valve. See
"3.5 Expansion valve" on page 89.
Possible cause: Faulty condenser side expansion valve.
9 Perform a check of the main PCB. See
page 106.
Possible cause: Faulty main PCB.
Service manual
14
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Unit
Main
Sub 1
Sub 2
Reset
If field setting 2-15=1
(default): Via the
indoor unit remote
controller, cycle OFF
& ON.
If field setting 2-15=0:
Press BS3 on main
PCB on outdoor unit,
and then via indoor
unit remote controller,
cycle OFF & ON.
page 133.
page 138.
"5 Maintenance" on
page 124.
page 133.
"4.2 Refrigerant
"3.9 Main PCB" on
INFORMATION
If all procedures listed above have been performed and the
problem is still present, contact the helpdesk.
2.3.7 E3-07 – High pressure switch reset error
Trigger Effect
High pressure switch Unit will stop
did not reset and it operating.
stays activated.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed
order.
1 Check that all stop valves of the refrigerant circuit are open.
See "4.2 Refrigerant circuit" on
Possible cause: Closed stop valve in the refrigerant circuit.
2 Perform a check of the high pressure switch. See
pressure switch" on page 97.
Possible cause: Faulty high pressure switch.
3 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.
2.3.8 E3-13-14-15 – Liquid stop valve check
error
Main error code Sub error code
E3 13
14
15
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
Pressure builds up Unit will stop test run. Eliminate the cause,
quickly on test run
operation.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed
order.
1 Check that all stop valves of the refrigerant circuit are open.
See "4.2 Refrigerant circuit" on
Reset
If field setting 2-15=1
(default): Via the
indoor unit remote
controller, cycle OFF
& ON.
If field setting 2-15=0:
Press BS3 on main
PCB on outdoor unit,
and then via indoor
unit remote controller,
cycle OFF & ON.
page 133.
"3.7 High
"3.9 Main PCB" on
Unit
Main
Sub 1
Sub 2
Reset
repeat test operation
procedure.
page 133.
RYYQ+RYMQ+RXYQ8~20U7Y1B
VRV IV+ Heat Pump
ESIE18-14 – 2019.07