Skip to content
Appliance Error Codes

Error Code E51 on TCL TWF100-B101WH Washer | Causes & Fix

Error E51 on TCL : Motor fault — inverter signal lost. Follow the troubleshooting steps below to diagnose and fix this washer issue. ## What Error Code E51 Means on a TCL TWF100-B101WH Error E51 on the TCL TWF100-B101WH washer indicates a motor fault. TCL front-load washers use brushless inverter motors. The control board monitors motor speed via a Hall-effect sensor. If the speed signal is absent, erratic, or the motor draws excessive current, E51 is raised and the programme stops. Causes include a faulty Hall sensor, a loose motor wiring connector, or an inverter board fault. When E51 appears, the TCL washer pauses normal operation to protect internal components from potential damage. Not every E51 fault requires a professional engineer — many are resolved through careful inspection and routine maintenance. Work through each diagnostic step below in sequence, starting with the simplest check, to identify the root cause efficiently before considering part replacement or arranging a service call. ## Symptoms - E51 on display

  • Drum not rotating
  • Motor making noise but drum stationary ## Common Causes - Motor fault — inverter signal lost ## Tools You May Need - digital multimeter
  • Torx T20 screwdriver ## Step-by-Step Repair Guide | Step | Action | Result | |------|--------|--------| | 1 | Unplug the machine. Remove the back panel and check motor wiring connectors — reseat any loose plugs. | Wiring inspected — continue to step 2 if the issue persists. | | 2 | Inspect the motor for visible damage (burn marks, smell). | Motor inspected — continue to step 3 if the issue persists. | | 3 | Test motor winding resistance: typically 5–15 Ω per phase. OL indicates failed winding. | Resistance measured — continue to step 4 if the issue persists. | | 4 | Test Hall sensor supply voltage — should be ~5 V DC from the control board. | Hall sensor tested — continue to step 5 if the issue persists. | | 5 | If motor and Hall sensor test good, the inverter board on the control module may be faulty. | Inverter board diagnosis — if the fault remains, contact a qualified technician. | ## Safety Precautions Unplug before accessing the motor. Do not attempt to run the motor outside the machine casing. ## Estimated Repair Time and Difficulty Most washer error code E51 faults can be assessed and addressed in 30–90 minutes using the steps above. The diagnostic process requires only basic tools: a multimeter and standard screwdrivers cover the majority of checks described here. If a replacement part is required, allow 1–5 working days for delivery. A trained technician with access to the correct diagnostic equipment will typically resolve this type of fault within a single service visit. ## When to Call a Technician Contact a TCL authorised service technician if: the fault persists after following all the steps above; if PCB-level or refrigerant-circuit work is required; or if you are not comfortable working with electrical or mechanical components. When calling, have the full model number, the error code displayed, and a brief description of any sounds or symptoms you noticed before the fault appeared — this helps the technician prepare the correct parts and tools. ## Frequently Asked Questions Q: Is E51 safe to ignore? No — operating with a motor fault can cause further damage to the inverter board or motor. Stop using the machine until repaired. Q: Can overloading the washer cause E51? Yes — consistently overloading can cause motor overcurrent events that trigger E51. Ensure loads do not exceed the rated maximum weight. Q: Does E51 require a specialist? Motor winding and Hall sensor tests are DIY-accessible. Inverter board replacement or refrigerant circuit work requires professional expertise. ### Is it safe to keep using my TCL with error E51? If error E51 does not indicate an immediate safety hazard such as a gas leak, electrical short, or water flooding, you can continue limited use while monitoring the appliance. However, running the washer with an active error code increases the risk of further damage. Address the underlying issue as soon as possible. For high-severity errors, disconnect the appliance and contact a qualified technician. ### How much does it cost to fix error E51 on a TCL ? Repair costs for error E51 on the TCL washer depend on the root cause. DIY fixes such as cleaning filters, resetting the unit, or reconnecting loose wires cost nothing beyond basic tools. If a component replacement is needed, parts and labor from a certified technician are the main expenses. Contact a TCL-authorized service provider for an accurate estimate based on your specific situation. ### What does error code E51 mean on a TCL washer? Error code E51 on TCL washer models indicates Motor fault — inverter signal lost. This error is detected by the appliance’s internal diagnostic system and displayed to alert the user that attention is needed. Refer to the troubleshooting steps above for guidance on resolving this issue. ### Is it safe to keep using my TCL with error E51? If error E51 does not indicate an immediate safety hazard such as a gas leak, electrical short, or water flooding, you can continue limited use while monitoring the appliance. However, running the washer with an active error code increases the risk of further damage. Address the underlying issue as soon as possible. For high-severity errors, disconnect the appliance and contact a qualified technician. ### How much does it cost to fix error E51 on a TCL ? Repair costs for error E51 on the TCL washer depend on the root cause. DIY fixes such as cleaning filters, resetting the unit, or reconnecting loose wires cost nothing beyond basic tools. If a component replacement is needed, parts and labor from a certified technician are the main expenses. Contact a TCL-authorized service provider for an accurate estimate based on your specific situation. ### What does error code E51 mean on a TCL washer? Error code E51 on TCL washer models indicates Motor fault — inverter signal lost. This error is detected by the appliance’s internal diagnostic system and displayed to alert the user that attention is needed. Refer to the troubleshooting steps above for guidance on resolving this issue.