ESIE15-11A
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Part 2. Troubleshooting
1. How to retrieve error code and data?
23/09/16
Page 13
VRV4 indoor units
1.1.3. Access to Service menu
When there is no error displayed but unit is behaving strangely, you can also check some more operational data in the Service
mode.
How to access the Service menu:
In the Service menu you can find below information:
Switching between Mode number 40-41-43 is done by pushing the up and down button. To return to normal operation: push the
test button one time.
Mode
No
Function
Contents and operation method
Remote controller display example
40
Malfunction history
display
Display malfunction history.
The history No. can be changed with the
but-
ton.
41
Display of sensor
and address data
Display various types of data.
Select the data to be displayed with the
button.
Sensor data
0: Thermostat sensor in remote controller.
1: Suction (or level if DDC-controller connected. 00 =
level 1 etc.)
2: Liquid pipe
3: Gas pipe
Address data
8: Cool/heat group address
9: Demand / low noise address
43
Forced fan ON
Manually turn the fan ON by each unit. (When you
want to search for the unit No.)
By selecting the unit No. with the
button, you
can turn the fan of each AHU on (forced ON) individu-
ally.
History No: 1 - 9
1: Latest
Unit 1
Malfunction code
2-U4
Malfunction code
40
(VE007)
Temperature ºC
41
Sensor data display
Unit No.
Sensor type
1 1
2 7
Address
41
Address display
Unit No.
Address type
1 8
1
(VE008)
Unit 1
43
(VE009)
