Installation, Operation & Application Manual
Bosch 2H/2C/Hum Touch-Technology Thermostat
| 19
Bosch Thermotechnology Corp.
|
09.2016
Data subject to change
6.8 Viewing fault codes
When one of the faults listed below causes a hard lockout on the UPM the unit
compressors are disabled and the “Call Service Tech” light is illuminated.
To view UPM’s fault code, go to
. Press
multiple times to the last menu
item.
If no fault history is recorded, screen will show “VIEW Er no”.
VIEW
Figure 39
If fault history is recorded, screen will show “VIEW E{x} {month} {date} {time}”
indicating the fault code, date and time of the fault.
VIEW
Day
Month
Figure 40
You can press
or
button to browse fault history. The thermostat records the
latest 20 faults.
For additional information on fault codes, please refer to the unit
instruction and maintenance manual.
