Replacement Treadmill Motor Controller MC2100ELS-18W or MC2100ELS-50W - Lower Control Board Power Supply Product overview Direct replacement lower control board and power supply board for treadmills that use the MC2100ELS-18W or MC2100ELS-50W controller modules. Supplied as one new control board. Each unit is tested and verified working before shipping. Designed for 220V systems. 90 day limited warranty. Key benefits Restores treadmill function quickly by replacing a failed controller board. Saves time and diagnostic guesswork with a pretested, ready-to-install unit. Compatible with treadmill models that require MC2100ELS-18W or MC2100ELS-50W controllers, including select ICON and ProForm models that use these part numbers. Compact lower control board form factor fits into the original controller bay and connects to existing motor, sensors, and console wiring. Specifications and attributes Part numbers: MC2100ELS-18W or MC2100ELS-50W. Package contents: 1 piece control board. Condition: New; tested functional prior to shipment. Voltage compatibility: 220V. Warranty: 90 days from date of delivery. How to identify a failed controller E01 - Communication failure: usually indicates a communication breakdown between the controller and console or a sensor fault. Check wiring harnesses and sensor connections. E02 - Controller fault: indicates the controller may be faulty. Before replacing the controller, test the motor independently to confirm the motor is functioning properly. E03 - Sensor fault: often the treadmill will start and run for a few seconds before stopping. Inspect and test incline and speed sensors and wiring for continuity or damage. E04 - Over-current fault: typically indicates burned or shorted components on the controller board. Visual inspection may reveal damaged parts on the board and replacement is usually required. Practical use scenarios Home repair: Replace a failed lower control board to restore treadmill speed and incline functions after error codes point to controller failure. Service shop: Stock the MC2100ELS-18W and MC2100ELS-50W boards for fast turnaround repairs on compatible treadmill models that operate on 220V. Diagnostic confirmation: Swap in the tested control board to determine whether the issue is the original controller or another component such as the motor or a sensor. Installation notes Power off and disconnect the treadmill from mains before attempting any replacement. Match part number and connectors to the original board. If unsure, verify compatibility with the treadmill model that uses MC2100ELS-18W or MC2100ELS-50W. If E02 or E04 errors are present, test the motor and wiring before finalizing repair to ensure the replacement board will not be damaged by an underlying fault. What is included One MC2100ELS control board (18W or 50W version as ordered), tested and ready for installation. Warranty and support 90 day warranty covering manufacturing faults. Unit is supplied new and tested prior to shipping. This replacement controller provides a straightforward way to restore a treadmill that uses the MC2100ELS-18W or MC2100ELS-50W lower control board, with clear diagnostic guidance to help identify whether controller replacement is the correct solution.