Bosch C-IR 20 Notice D'installation Et D'utilisation page 47

6 Diagnosis and troubleshooting
6.1 Troubleshooting
Error
My thermostat does not start
Warning logo is displayed
C-IR 20 – 6721851970 (2023/10)
Diagnosis and troubleshooting
Measures
Supply problem
• Check if the product is correctly
wired.
• Press the Reset button through the
small hole under the product on the
bottom right corner.
• In the case of uneven walls or
inadequately embedded wiring
boxes, excessive fastening of the
installation screws may result in loss
of contact with the power supply of
the display.
General problems
• Press the warning logo on the bottom
right corner.
More information on the fault is displayed
i.e. the sensor or the fault type (error,
floor limit,...). If the error refers to the
sensor:
• Check the sensor connections
• Check Regulation type (Air/Floor/Air
+ Floor,...)
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