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Trouble​ Shooting

Jiahong - Your Reliable Heating Cable Manufacturer and Partner
The thermostat’s display is dark, it is not lit.

Remove the thermostat and check that the power wiring is correct?

Ask the electrician to check whether the L/N power cable has voltage output.

Is there any visible abnormal change, such as sooting, or signs of injury or damage to certain components, on the thermostat’s relay or front panel? if so,

please contact after sales send back to the original factory for repair or replacement.


The display is lit, but heating is not working.

Is it the real room temperature that can be seen on the display?

If not,the thermostate needs calibration. Calibrate the device according t the description in the instructions manual.

When the thermostat is turned on press the button so that the set value exceeds the room temperature. Is the heating icon appearing on the display in a few seconds with a soft clicking sound?

Does the thermostat control a surface heating system?

YES -Check the controller’s surface limit values as described in the instructions manual.

If necessa, the setting limit value can be increased. If the surface temperature shows an unrealistic value, further examination is required. If there is a piece of furniture, a carpet or other heat insulating material over the floor sensor of the thermostat, remove it so that the affected surface can give off heat. If there is no such a reason, the sensor might be damaged.

NO -the thermostat need to be further examined, So please, contact after sales send back to the original factory for repair or replacement.


After switching on or increasing the temperature value the thermostat clicks, the heating icon is visible, but there is still no heating.

Whether the heating power exceeds the rated power requirement?

YES -the circuit in question is supplemented with a power switching relay. PIease, ask your electrician to check the proper working of the power switching relay, or order our on-site troubleshooting service.

Are the heating power supply wires connected to the built-in relay of the thermostat?

NO -ask your electrician to connect it.

Can you measure voltage on the thermostat’s switched output?

YES -the thermostat functions well.

NO -the thermostat need to be further examined, So please, contact after sales send back to the original factory for repair or replacement.


APP cannot connect.

Check that the phone is properly connected to the Wi-Fi network to ensure that the phone and the device are on the same network.

Reset the connection in the device Wifi Config option.


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