What to do if the safety thermostat (STL) has shut down my Vaillant ecoCRAFT VKK GB Boiler due to high temperature?
If the safety thermostat (STL) has automatically shut down the boiler due to high temperature, reset the STL by pushing the pin after removing the front cover.
How to troubleshoot no display on the Vaillant ecoCRAFT VKK GB Boiler control panel?
If there is no display on the control panel, check the 4 AT fuse in the boiler controller. Also, verify that the main switch is turned on and that there is an electrical connection of 230 V/50 Hz at the connection plug.
General| Boiler Type | Condensing |
|---|---|
| Fuel Type | Natural Gas |
| Mounting | Floor Standing |
| Fuel | Natural Gas |
| Type | System |
| Efficiency | Up to 98% |
| Warranty | 2 years |
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