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perezdavidAug 5, 2025
What to do if DoorHan DCUH-1 leveler does not rise and the pump isn't working?
- WWilliam TaylorAug 6, 2025
If the DoorHan Control Unit leveler isn't rising and the pump isn't working, here are a few things you can check: * **No supply voltage:** Check the electrical wires and the voltage in the socket. * **Faulty power switch:** Replace the main power switch. * **Blown fuse:** Replace the fuse (FU1, FU2). * **Faulty contactor or no power to the contactor coil:** Replace the main board. * **No jumper on terminals for safety devices:** Set the jumper. * **Interlock switch open:** Check the interlock. * **Leveler not responding to the control button:** Replace the control board.
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