Troubleshooting On Check Mode - Hitachi PC-ARF Technical Catalogue

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4 Individual remote controls

4.2.7.3 Troubleshooting on check mode

Use the OK button on the remote control in the following cases:

1 When the LED run indicator is flashing.

2 To monitor the cause of the problem after a system restart due to a stoppage with

RUN indicator flashing.

3 To perform checks during normal operation or stoppage.

4 To monitor the inlet air and discharge air temperatures.

Check mode 1:

Check mode 2:

button for at least 3 seconds

- The indication will be delayed since the transmission between the remote control and the indoor unit takes around 10 sec-

- All data may be displayed as "FF", "-1" or "255". These temporary values generated by the software do not affect the func-

tions of the device at all.

(The alarm code may also be displayed as "FF").

Unit number and alarm code

For the next 7 seconds.

TCGB0106 rev.0 - 12/2014

Indicating the current data.

Indicating the data saved immediately before the fault.

7-second interval for checking another unit.

Forwards: Press "" to increase from 00 to 01 to 02 ···

Backwards: Press "" to reduce from 15 to 14 to 13

Alarm code identifying the last fault that occurred on

the indicated unit.

Number of the connected unit or of the unit for which

the check mode was previously set.

ADDS: Number of the indoor unit of cycle no. **

RN: No. ** Refrigerant cycle no. **