To prevent damage from overheating, never shut down the unit by pulling the electrical disconnect while the heater is active. Use the Fn key to select a cooling sequence (e.g., "cool down stop") and wait for the pump to stop before turning off the main power.
: Actual and set values are displayed simultaneously on the main screen for easy comparison. Wittmann Tempro Plus D 360 Manual
(found on the nameplate near the power cord) to download the exact wiring diagrams and parameter lists for your specific build. Do you have a specific error code on your screen right now, or are you looking for the wiring schematics for a repair? To prevent damage from overheating, never shut down