![background image](http://html.mh-extra.com/html/daikin/vrv-iv/vrv-iv_service-manual_502236027.webp)
2
|
Troubleshooting
Service manual
27
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
2.3.7 E3-02-04-06 – High pressure error
Main error code
Sub error code
Unit
E3
02
Main
04
Sub 1
06
Sub 2
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
Reset
High pressure control (by
sensor) active due to
pressure >safety value
certain times within
certain minutes, see
449].
Unit will stop operating.
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.
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
Possible cause:
Closed stop valve in the refrigerant circuit.
2
Check the required space around the outdoor unit heat exchanger. See
372].
Possible cause:
Insufficient air flow or air by‑pass due to required space
specifications not met.
3
Clean the outdoor heat exchanger. See
374].
Possible cause:
Dirty outdoor heat exchanger.
4
Perform a check of the refrigerant high pressure sensor. See
Possible cause:
Faulty refrigerant high pressure sensor.
5
Check if the refrigerant circuit is correctly charged. See
Summary of Contents for VRV IV+
Page 473: ......
Page 474: ......
Page 475: ......
Page 476: ...ESIE18 15B 2020 05 Copyright 2020 Daikin Verantwortung für Energie und Umwelt ...