Daikin VRV III REYQ8PY1, Service Manual

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Si37-701 Troubleshooting by Remote Controller
Troubleshooting 223
2.6 Test Run Mode
Operating the INSPECTION/TEST button on the remote controller will make it possible to put
the system into test run mode.
(1) Test run mode setting
The test run mode setting can be made by conducting the following operation.
Press the RUN/STOP button after the completion of test run mode setting, and a test run
starts.
(The remote controller will display "TEST RUN" on it.)
2.7 Remote Controller Self-Diagnosis Function
The remote controller switches are equipped with a self diagnosis function so that more
appropriate maintenance can be carried out. If a malfunction occurs during operation, the
operation lamp, malfunction code and display of malfunctioning unit No. let you know the
contents and location of the malfunction.
When there is a stop due to malfunction, the contents of the malfunction given below can be
diagnosed by a combination of operation lamp, INSPECTION display of the liquid crystal display
and display of malfunction code. It also lets you know the unit No. during group control.
Normal
operation
mode
Test run
mode
Press the CHECK/TEST
button 4 times.
Operation lamp
ON/OFF button
Display of indoor unit for
which a malfunction has
been detected
Malfunction code
(VL050)
Inspection display