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Error code reference

Jenn-Air Dishwasher Error Code 6-6

Fill valve triac on control shorted, or fill valve mechanically stuck open.

Jenn-Air codesJenn-Air dishwasher codes

Fill valve triac on control shorted, or fill valve mechanically stuck open.

First step from the service manual

If still filling while door is open, fill valve is mechanically stuck open. If no fill with the door open, check operation in Service Diagnostics Test Cycle. Advance Service Cycle until detergent dispenser opens. Fill valve should be off. Listen to see if dishwasher is still filling. If still filling, unplug dishwasher or disconnect power and replace control.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What 6-6 means on a Jenn-Air dishwasher

Error code 6-6 on a Jenn-Air dishwasher indicates that the main control board has detected a problem with the fill valve circuit. Specifically, the control has identified either a shorted triac on the control board that drives the fill valve, or a fill valve that is mechanically stuck in the open position and cannot be shut off by the control. Both conditions result in uncontrolled water filling, which the control flags with this code. Distinguishing between the two failure modes is critical before ordering parts.

For homeowners, this code means your dishwasher is either allowing water to flow in when it should not, or the control board has an internal electrical fault that keeps the fill valve circuit energized. A fill valve stuck open is a physical failure of the valve itself, while a shorted triac is a failure inside the control board. Either way, the dishwasher cannot properly manage water intake, which can lead to overfilling. The key diagnostic test is checking whether the dishwasher continues filling with the door open. Water flowing with the door open points directly to a mechanically stuck fill valve, while no fill with the door open shifts suspicion to the control board triac.

Source: manufacturer service documentation.

Common causes of 6-6

  1. 01

    Fill valve mechanically stuck open

    Part replacement

    The fill valve's internal solenoid or diaphragm has failed in the open position, allowing water to flow continuously regardless of signals from the control board. This is confirmed when the dishwasher continues filling even with the door open.

  2. 02

    Shorted fill valve triac on the control board

    Part replacement

    The triac on the control board that switches power to the fill valve has shorted internally, keeping the fill valve circuit energized even when the control attempts to shut it off. This is indicated when filling stops with the door open but continues during the Service Diagnostics Test Cycle when the fill valve should be off.

  3. 03

    Failed fill valve solenoid winding causing triac damage

    Part replacement

    A shorted winding inside the fill valve solenoid can draw excess current and damage the control board triac over time, resulting in both a failed valve and a failed control. Both components may need replacement if this occurred.

See the test procedure for each cause

Frequently asked questions about 6-6

What does error code 6-6 mean on a Jenn-Air dishwasher?
Error code 6-6 means the control board has detected either a shorted triac in the fill valve circuit or a fill valve that is mechanically stuck open. Both conditions cause the dishwasher to fill with water when it should not. The first step is to check whether the unit is still filling with the door open, which identifies which component is at fault.
Is it safe to use my Jenn-Air dishwasher when it shows a 6-6 error?
No, you should not continue using the dishwasher with a 6-6 error active. A fill valve stuck open or a shorted triac can cause the dishwasher to overfill, which risks water damage to your floor, cabinetry, and the unit itself. Disconnect power or shut off the water supply to the dishwasher until the fault is diagnosed and repaired.
How do I diagnose a 6-6 error code on my Jenn-Air dishwasher?
Open the dishwasher door and observe whether water continues to fill the tub. If it does, the fill valve is mechanically stuck open and needs replacement. If filling stops with the door open, run the Service Diagnostics Test Cycle and advance it until the detergent dispenser opens. At this point the fill valve should be off. If the dishwasher is still filling at this stage, disconnect power and replace the control board.
How much does it cost to fix a 6-6 error on a Jenn-Air dishwasher?
If only the fill valve is stuck open, the part typically costs between $30 and $80 and is a manageable DIY repair for someone comfortable disconnecting water supply lines and electrical connectors. If the control board triac is shorted, a replacement control board generally runs $150 to $350 for the part alone. Professional labor can add $100 to $200 depending on your market, making a control board repair potentially approach $500 total.
Can I replace the fill valve myself to fix a 6-6 code, or do I need a technician?
Replacing the fill valve on a Jenn-Air dishwasher is a DIY-friendly repair if the stuck valve is confirmed as the cause. You will need to shut off the water supply, disconnect the inlet hose, unplug the dishwasher, and swap the valve, which is typically mounted at the bottom rear of the unit. Replacing the control board is also achievable for a confident DIYer. If you are unsure about the diagnosis or uncomfortable with electrical components, a qualified appliance technician can complete either repair safely.

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