Troubleshooting; To Access Push Buttons And 7-Segment Display; Via Service Checker Type 3; Via The Indoor Unit Remote Controller Brc1H - Daikin VRV IV+ Service Manual

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Troubleshooting

2.1 To access push buttons and 7-
segment display
1 Remove the service plate, see
Result: The push buttons and 7-segment display are located on
A1P behind the service plate.
b
a
a Push buttons
b 7-segment display
2.2 To check the error history
2.2.1

Via service checker type 3

With the service checker, it is possible to monitor not only error
codes but also some common retries and stepping down controls:
▪ Unit error
▪ Error code
▪ High pressure retry
▪ Low pressure retry
▪ Discharge pipe retry
▪ Inverter retry
▪ High pressure stepping down control
▪ Low pressure stepping down control
▪ Over current stepping down control
▪ Fin temperature stepping down control
▪ Compressor discharging stepping down control
2.2.2 Via the indoor unit remote controller
BRC1H
To indicate a system error, the controller displays
messages zone (a) of the home screen.
1 Press the middle button
home screen.
Result: An error screen (c) is displayed.
RYYQ+RYMQ+RXYQ8~20U7Y1B
VRV IV+ Heat Pump
ESIE18-14 – 2019.07
"3.13 Plate work" on page 118.
on the
(b) to enter the main menu from the
a
b
2 Press the middle button
Active error codes are also accessible through the Madoka Assistant
for BRC1H.
The active error (d) is shown on the home screen (e).
d e
3 Tap the error message (d).
Result: The detail(s) of the error(s) (f) are shown on the
notifications screen (g).
To check the error history with the Madoka Assistant for BRC1H:
4 Tap the settings icon (h).
Result: The "Unit settings" screen appears.
h i
5 Choose "Errors and warnings" (i).
6 The "Errors and warnings" screen appears.
2 Troubleshooting
c
(b) to return to the home screen.
f g
Service manual
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