Sometimes it helps to plug a thermostat environment to enable / disable a function climate control unit HCC.
Below are the details for proper installation:
If the power is on and unit still it does not work or does not display anything, then the internal device fuse may be defective or burned.
In this case, open the device, remove the old fuse and check it.
Replace the defective fuse with a new one, locate the external source of the error (eg. Pump) and exchange.
Subsequently, the controller and check the function of the switch outputs in manual mode.
Only use the supplied spare fuse or a fuse with the following characteristics: T2A 250V
Le units of HCC series and TDC SOREL they can be reprogrammed via the update card with new or different software.
The update should only be done if the installed software is defective or produces problems.
The opening of the contact is done by simply pressing the screwdriver into the terminal with movement from top to bottom (see image).