Maytag Washer Error Code F13

Maytag Washer Error Code F13 — What It Means

The F13 error code on a Maytag washer typically indicates a fault related to temperature sensing or control-board communication. Depending on the model, F13 often appears when the washer detects a problem with the water temperature sensor (thermistor), the heater circuit, or when the main control board and sensors are not communicating correctly. When this error occurs, you may experience failed or incomplete wash cycles, extended cycle times as the machine retries or attempts to reach a target temperature, clothes that aren’t washed at the expected temperature, or the washer may lock out certain functions for safety. In some cases the machine will not advance past a diagnostic or drain step. Left unresolved, the root causes can lead to repeated cycle failures and — rarely — potential overheating or electrical hazards if a failed heater or shorted component is involved.

Common Causes

• Defective water temperature sensor (thermistor) or NTC sensor
• Faulty main control board or communication error between modules
• Damaged or corroded wiring harness and connector pins
• Failed heating element or heater relay (on models with internal heaters)
• Intermittent door lock or lid switch causing diagnostics to misreport
• Faulty pressure switch or water level sensor affecting cycle logic
• Software or firmware glitch that requires a power cycle or service update
• Drain or motor issues that cause the machine to abort cycles and flag codes

Troubleshooting Steps

1. Power safety first: unplug the washer or switch off the circuit breaker before inspecting or working on the appliance.
2. Clear the code: restore power and run a diagnostic or press the clear/reset procedure in your owner’s manual to see if F13 reappears.
3. Check for obvious signs: inspect the control panel and rear access panels for burn marks, water leaks, or loose connectors.
4. Inspect wiring harnesses: disconnect and reseat wiring connectors to the control board, thermistor, and heater. Look for corrosion, bent pins, or damaged insulation.
5. Test the temperature sensor: locate the thermistor and measure resistance with a multimeter at room temperature. Compare to the expected ohms in the service manual; large deviations indicate a bad sensor.
6. Test the heating element and heater circuit (if equipped): check continuity of the element and for short to ground. Inspect heater relay on the control board for signs of failure.
7. Run diagnostic mode: put the washer into its service diagnostic cycle (per model instructions) to view live sensor readings and pinpoint failing components.
8. Swap or replace suspect parts: if tests confirm a bad thermistor, harness, or control board, replace the defective component with OEM parts.
9. Update controls: if the washer exhibits intermittent communication faults and hardware checks out, ask a technician about firmware or control board updates for your model.
10. If the code persists after above checks, call an authorized Maytag technician to perform advanced diagnostics or replace the main control board.

Maintenance / Prevention Tips

• Keep the washer in a dry, well-ventilated area to prevent moisture-related corrosion at connectors.
• Regularly inspect the rear panel and around connectors for signs of water leaks and address leaks immediately.
• Use a high-quality water softener if you have hard water — mineral buildup can affect sensors and heating elements.
• Run a monthly cleaning cycle with a washer cleaner to reduce residue buildup that can affect sensors and drains.
• Avoid overloading the washer; excess vibration or mechanical strain can loosen connectors over time.
• When moving the washer, secure wiring and panels to prevent pinched harnesses or damaged connectors.
• Inspect and clean the door boot and seal area to prevent water from entering electronic enclosures.
• Check the detergent drawer and dispenser area for clogs that can cause water to pool in unwanted places.
• Have a technician inspect and test the heater element and thermistor periodically on models with internal heaters.
• Replace brittle or aging wiring harnesses before they fail if you see cracked insulation during inspections.
• Choose appropriate detergents and avoid excessive sudsing, which can confuse sensors and pressure switches.
• Run diagnostic mode annually or when you notice irregular behavior to catch issues early.
• Ensure the washer sits level to reduce mechanical stress on components and connectors.
• Keep pets and children away from the back of the washer where wiring is accessible.
• Document any recurring errors and repairs to help service technicians identify persistent issues faster.

FAQs

Q: Will resetting the washer clear an F13 code permanently?

A: Resetting power or running a factory reset can clear the code temporarily, but if an underlying fault remains (bad sensor, wiring, or control board), the F13 code will likely return. Use reset as a first step in troubleshooting but follow up with tests.

Q: Can I keep using the washer if F13 appears intermittently?

A: Occasional error flashes may not immediately damage the machine, but continued use risks failed cycles and potential safety issues if a heater or electrical component is involved. Limit use and troubleshoot when you can.

Q: How much does it cost to repair an F13-related issue?

A: Costs vary widely by cause — sensor replacements are generally lower cost, while a main control board replacement is more expensive. Labor rates and part availability also affect price. Get a quote from an authorized service provider for an accurate estimate.

Q: Can I replace the thermistor or control board myself?

A: If you have basic electrical skills, a multimeter, and follow safety procedures (unplug the washer), you can replace accessible parts like the thermistor or wiring harness. Replacing a main control board is more advanced and may require programming or exact part matching — many users prefer professional service for that.

Conclusion / Safety Notice

Errors like F13 warrant prompt attention. Always disconnect power before inspecting or working on electrical components, and use proper tools and ESD precautions when handling control boards. If you are uncomfortable with electrical diagnosis, observe damaged wiring, or suspect a major control-board failure, contact an authorized Maytag technician. A trained professional can safely diagnose and replace parts and verify the repair with diagnostic tests.

If you do attempt simple troubleshooting yourself, document each step and stop if you encounter exposed wiring, burn marks, or uncertain test results — these are clear signs to call a professional.