How to troubleshoot an F16 error on a GE dishwasher

One of the more common fault codes on GE dishwashers is the F16 error, which usually indicates a high-temperature-related problem.

Let’s walk through the troubleshooting process so you can get your machine up and running again.

If you find out that you need any replacement parts for your GE dishwasher while you’re troubleshooting, you can enter your model number at AppliancePartsPros.com to order them. Most orders arrive in just two business days, and we have thousands of free guides to show you how to install your new parts.

Disclaimer: The error code information in this article is based on general service manuals and may not apply to your specific appliance model. While we strive to offer helpful advice for DIY appliance repairs, variations in models and configurations can lead to differences in troubleshooting steps, error codes and part replacements. For the most accurate guidance, we strongly recommend consulting the technical sheet for your specific appliance model.

What does the F16 error mean?

The F16 error usually means that an abnormally high water temperature has been detected during a wash cycle. When this happens, the dishwasher’s internal monitoring system trips due to excessive heat in the tub.

Safety precautions

When working on any appliance, remember to keep safety first. Here are some tips to keep in mind:

• Always power off and unplug your appliance or switch off the circuit breaker before you attempt any maintenance or replacement work. This keeps you safe by eliminating any risk of electric shock.
• If the appliance has recently been used, give it plenty of time to cool down before working on it.
• Turn off the water supply at the outlet before beginning repairs. Keep towels ready to catch any residual water in the system when removing parts.
• Take your time while working to prevent accidents and personal injuries. Rushing is the enemy of precision.
• Work in a well-lit area so you can see and access appliance parts.
• Keep your workspace free of clutter and other obstacles. Keep children and pets away from the work area.
• Never work on internal parts with wet hands. Make sure the work area is completely dry.
• Check the user manual to see if there are specific installation or safety instructions related to your appliance or replacement part.
• Be gentle when handling or removing parts. Excessive force might damage the appliance or cause personal injury.
• Wear insulated work gloves to protect your hands from sharp metal parts and debris.
• When working with wires, avoid touching any exposed wires or terminals. If you need to touch a wire, use a non-conductive tool or wear insulating gloves to prevent electrical shock.
• Always take photos or make a note of wiring terminals or other connections before disconnecting them to make reassembly easier.
• Don’t test live voltage with a multimeter if you’re unfamiliar with how to prevent short-circuiting.

Read more: How to Clean a Dishwasher

How to clear the F16 error code

When your GE dishwasher is displaying an F16 error, there are a few areas you can check to find out what’s going wrong.

Step 1: Inspect the thermistor

The thermistor is a sensor that monitors the temperature of the water inside the dishwasher sump during wash cycles. It provides information to the main control board about the tub’s temperature. If the thermistor fails in an open or shorted state, it can cause an F16 error.

1. Unplug the dishwasher from the power outlet.
2. Remove the lower access panel beneath the dishwasher to gain access to the main control board.
3. Find pins 8 and 7 on connector J711 on the control board.
4. Set a multimeter to resistance mode (Ω).
5. Use the multimeter probes to check the resistance between pins 8 and 7.
6. Check the multimeter reading. At room temperature, you should get a resistance of around 10K-11k Ohms.

If the resistance reading is way off from the 11k Ohm reading or if you see an “open” reading, then the thermistor would need to be replaced.

If the thermistor tests good, move on to the next step.

Read more: How To Use A Multimeter To Check Appliance Parts

Step 2: Check the heater assembly

The F16 fault code can also occur due to problems with the heating element or loose/damaged wiring connections associated with it.

Visually inspect all the wiring to the heating element. Make sure connections are secure with no loose or corroded contacts. If you see any burned or damaged points, replace the wiring.

1. Make sure the dishwasher is unplugged.
2. Set a multimeter to continuity mode.
3. Test the heating element wires and terminals for continuity to the metal frame. If there’s continuity at the element or on the wires, replace the specific part.
4. Check the heating element’s resistance by using the probes on the multimeter. The element should have 10 to 15 Ohms of resistance.

If everything else so far has passed testing and inspection, then the main control board should be replaced as a last resort.

Read more: How to clean dishwasher spray arms

More information

Thank you for reading! We hope this guide helped you get your GE dishwasher working again.

If you have any other appliance repair needs or projects, don’t hesitate to explore our other troubleshooting guides and videos.

If you need replacement parts or some extra help with ordering them, grab your model number and head over to AppliancePartsPros.com, where you can chat with a pro, read our DIY blog and more.

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