Whirlpool Dishwasher Error Code 13: Meaning and Fixes

Whirlpool dishwasher error code 13 generally points to a heating element or water temperature issue, which can often be resolved by checking power connections or resetting the unit.

What does error code 13 mean on a Whirlpool dishwasher?
Why is my Whirlpool dishwasher showing error code 13?
What are the quick fixes to try first?
What are the next steps if the error persists?
Quick reference table
When should you stop and call a technician?
What should you have ready before you call?
How can you keep error code 13 from coming back?

What does error code 13 mean on a Whirlpool dishwasher?

Error code 13 on a Whirlpool dishwasher typically indicates a water heating or temperature sensing fault within the appliance.

Because error definitions can occasionally vary across specific model lines and production years, you should always confirm the exact code meaning in your owner’s manual or on the manufacturer support page. This fault generally prevents the dishwasher from reaching the proper wash temperature.

The control board detects that water is not heating up to the required temperature during the cycle.
Error definitions can vary by specific model line, so always check your owner’s manual for exact confirmation.
Water temperature sensor issues can trigger this alarm even when the heating element is technically functional.
Faulty wiring harnesses connecting the heater to the control board frequently cause this specific error reading.
Unusually cold incoming water supply temperatures can occasionally trigger unexpected heating timeouts on certain cycles.

Why is my Whirlpool dishwasher showing error code 13?

This code is usually caused by a failed heating element, a loose wiring connection, or a malfunctioning water temperature sensor.

Understanding the underlying root cause helps you avoid unnecessary replacement parts and ensures a safer repair process. Over time, internal components degrade due to mineral buildup or standard electrical wear and tear.

Mineral scale buildup on the internal heating element reduces its thermal efficiency and triggers safety shutdowns.
Loose or corroded electrical wire terminals can interrupt the power supply needed by the heating circuit.
A defective thermistor or temperature sensor fails to report accurate water temperature data to the main control board.
A malfunctioning main control board fails to send the proper voltage signals to initiate the water heating cycle.
Restricted water flow into the tub prevents the heating element from safely submerging and operating correctly.

What are the quick fixes to try first?

Perform a hard power reset and inspect the water supply temperature to clear temporary heating glitches safely.

Before attempting any internal disassembly or testing components, always unplug the appliance or turn off the dedicated circuit breaker at your main electrical panel to prevent shock hazards.

Unplug the dishwasher or switch off the dedicated circuit breaker supplying power to the kitchen appliance.
Wait a full five minutes to allow the main control board capacitors to completely discharge their stored energy.
Restore power by plugging the dishwasher back in or flipping the circuit breaker back to the on position.
Run a short test cycle to determine if error code 13 clears from the digital display screen.
Verify that your household water heater is set to at least 120 degrees Fahrenheit for optimal performance.

What are the next steps if the error persists?

Inspect internal wiring harnesses and test the heating element continuity using a standard digital multimeter.

If a simple power reset fails to clear error code 13, you will need to check the internal electrical components for physical damage. Always disconnect power at the circuit breaker before removing access panels or touching internal wires.

Disconnect the electrical power supply at the home circuit breaker panel before removing any access panels.
Remove the lower front access panels to gain direct visual access to the dishwasher heating element and wiring.
Inspect all wire terminals connected to the heating element for signs of melting, burning, or corrosion.
Set your digital multimeter to ohms and test the heating element terminals for proper electrical continuity.
Securely reattach any loose wiring harnesses and replace damaged components according to manufacturer specifications.

Quick reference table

Use this symptom breakdown table to match your specific dishwasher behavior with the most likely cause and remedy.

Different symptoms related to heating failures can help pinpoint whether the issue lies in the power supply, sensor, or the element itself.

Symptom	Likely cause / fix
Error code appears immediately	Control glitch; perform a five minute circuit breaker reset.
Water stays completely cold	Failed heating element; test continuity with a multimeter.
Cycle stops mid-way	Temperature sensor fault; check thermistor wiring connections.
Faint burning smell detected	Loose wire terminal; turn off power and inspect wiring.

When should you stop and call a technician?

Stop troubleshooting and call a professional if you encounter damaged control boards or sealed system electrical issues.

Attempting advanced electrical repairs without proper training can result in severe injury or permanent damage to your appliance. Knowing your limitations ensures safety and protects your kitchen investment.

Call a professional immediately if you detect frayed wiring or burn marks on the main control board.
Stop troubleshooting if replacing the external wire connections and resetting power fails to resolve error code 13.
Contact a technician when specialized diagnostic tools are required to test complex electronic component assemblies.
Enlist expert help if your appliance is still covered under an active manufacturer warranty or extended protection plan.
Avoid attempting repairs yourself if you feel uncomfortable working with household electrical circuits and wiring.

What should you have ready before you call?

Gather your exact appliance model number, serial number, warranty paperwork, and a list of troubleshooting steps tried.

Having accurate information ready when you contact customer support or a repair technician speeds up the diagnostic process significantly. You can typically find the model and serial number sticker framed along the inner edge of the dishwasher door.

Locate and write down the complete Whirlpool model number found on the inner tub door frame.
Note the unique serial number of your specific appliance for parts compatibility verification.
Gather your original purchase receipt or warranty documentation to check for active coverage terms.
Prepare a clear summary of the troubleshooting steps you already tried, including power resets.
Write down any secondary symptoms or error codes that appeared alongside error code 13.

How can you keep error code 13 from coming back?

Maintain your dishwasher regularly by using quality rinse aids, cleaning filters, and running monthly cleaning cycles.

Preventative maintenance keeps mineral scale and detergent residue from building up on sensitive internal heating components. Simple cleaning habits drastically improve the long-term reliability of your dishwasher.

Run a monthly cleaning cycle using specialized dishwasher cleaner to dissolve hidden mineral scale deposits.
Periodically clean the bottom filter mesh to ensure proper water flow and circulation through the system.
Use a high-quality rinse aid to prevent hard water spots and residue buildup on the heating element.
Ensure your home water heater is properly adjusted to prevent excessive mineral precipitation inside the tub.
Avoid overloading dish racks so that water and detergent can circulate freely around all interior components.

Frequently Asked Questions

What should I do if Whirlpool dishwasher error code 13 returns immediately after a power reset?

If the error code returns right away, the heating element or thermistor likely has a permanent hardware failure. You should inspect the internal wiring harnesses for loose connections or test the heating element with a digital multimeter for continuity. If components test faulty, they must be replaced.

Can I still run my dishwasher if error code 13 is displayed on the screen?

Running your dishwasher with an active heating error is not recommended because dishes will not sanitize properly without hot water. Furthermore, running cycles with a faulty heating circuit can sometimes place extra strain on the electronic control board. It is best to resolve the root cause before washing more loads.

Where is the heating element located on a Whirlpool dishwasher?

On most modern Whirlpool dishwasher models, the heating element is visible as a metal loop running along the bottom of the interior tub floor. Accessing the wiring connections or terminals typically requires removing the lower front kickplate panel underneath the appliance door.

Does hard water cause Whirlpool dishwasher error code 13?

Yes, hard water causes heavy mineral and calcium scale accumulation directly on the surface of the heating element. This insulating crust prevents the element from transferring heat efficiently to the water, which can trigger temperature fault codes over time.

How much does it typically cost to fix a heating error on a Whirlpool dishwasher?

Repair costs vary depending on your geographic location and whether you hire a professional technician or complete the work yourself. Purchasing a replacement heating element or thermistor usually ranges from moderate to low cost, while labor fees will vary by local service rates.

Bottom Line

Start by performing a simple five-minute power reset at your circuit breaker to clear any temporary glitches causing error code 13. If the code persists, carefully inspect your water temperature and internal wiring connections before seeking professional repair assistance.

Sources

Whirlpool Support
Whirlpool Owner’s Manual
Manufacturer Support Page