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Error code reference

Jenn-Air Dishwasher Error Code 6-8

Rinse aid dispenser problem (for models with water softener

Jenn-Air codesJenn-Air dishwasher codes

Rinse aid dispenser problem (for models with water softener: regen valve electrical problem).

First step from the service manual

Check rinse aid gauge level on dispenser. Instruct customer how to fill and monitor, add or use rinse aid.

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

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  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
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What 6-8 means on a Jenn-Air dishwasher

Error code 6-8 on a Jenn-Air dishwasher signals that the control board has detected a problem with the rinse aid dispenser system. On standard models, the board monitors the dispenser for proper electrical continuity and function; when it detects an anomaly, it throws this code. On models equipped with a built-in water softener, 6-8 can instead indicate an electrical fault with the regeneration valve, which is the solenoid-controlled valve responsible for cycling the softener resin bed with salt brine.

For most homeowners, this code shows up when the rinse aid reservoir is empty or nearly empty. The dispenser uses a float or optical sensor to detect rinse aid level, and when the level drops too low, the control board logs the fault. Filling the dispenser and running a cycle will often clear the code immediately. If the dispenser was recently filled and the code persists, the dispenser assembly itself or its wiring may be faulty.

On water softener-equipped models, the code points specifically to the regen valve circuit rather than the rinse aid level. In this case, the valve may have failed electrically, or the wiring harness connecting it to the control board may be damaged or disconnected. Diagnosing this variant requires checking the valve's resistance and inspecting the associated wiring.

Source: manufacturer service documentation.

Common causes of 6-8

  1. 01

    Empty or low rinse aid reservoir

    Wiring / connection

    The most common trigger for code 6-8 on standard models is simply a depleted rinse aid supply. The dispenser sensor detects the low level and reports the fault to the control board.

  2. 02

    Failed rinse aid dispenser assembly

    Part replacement

    If the reservoir is full but the code persists, the dispenser assembly itself may have a faulty level sensor, a stuck dispenser door, or an internal electrical failure that the control board cannot resolve through normal operation.

  3. 03

    Damaged or disconnected wiring harness to dispenser or regen valve

    Wiring / connection

    A broken, corroded, or loose wire connector between the control board and the dispenser or regeneration valve will produce this code even when the components themselves are functional.

  4. 04

    Faulty regeneration valve (water softener models only)

    Part replacement

    On Jenn-Air dishwasher models equipped with a water softener, the regen valve solenoid can fail electrically, reading an open circuit or out-of-range resistance to the control board and triggering code 6-8.

See the test procedure for each cause

Frequently asked questions about 6-8

What does error code 6-8 mean on a Jenn-Air dishwasher?
Code 6-8 indicates a problem with the rinse aid dispenser system. On most Jenn-Air dishwashers, this means the control board detected an issue with the rinse aid dispenser, most often because the rinse aid is empty or very low. On models that include a built-in water softener, this code can also signal an electrical fault with the regeneration valve.
How do I fix error code 6-8 on my Jenn-Air dishwasher?
Start by opening the rinse aid dispenser cap, usually located on the inside of the door next to the detergent dispenser, and check the level using the sight window or indicator gauge. Fill it with standard dishwasher rinse aid, close the cap securely, and run a cycle. The code should clear on its own if a low rinse aid level was the cause. If the code returns after filling, inspect the dispenser assembly and its wiring for damage, or contact a technician to test the regen valve on water softener models.
Can I still use my Jenn-Air dishwasher when code 6-8 is showing?
Yes, the dishwasher will generally continue to operate through wash cycles even with code 6-8 active. However, running cycles without rinse aid will result in water spots and poor drying performance. If the code is related to a regen valve fault on a water softener model, continuing to use the machine without addressing it may reduce cleaning effectiveness over time. Filling the rinse aid or having the valve repaired promptly is advisable.
How much does it cost to repair error code 6-8 on a Jenn-Air dishwasher?
If the fix is simply adding rinse aid, the cost is just the price of a bottle of rinse aid, typically under $10. If the rinse aid dispenser assembly needs replacement, the part generally runs $30 to $80 depending on the model, plus labor if a technician installs it. A regeneration valve replacement on a water softener model can cost $50 to $120 for the part alone. Labor for a service call typically adds $100 to $200 depending on your area.
Why does code 6-8 keep coming back on my Jenn-Air dishwasher even after I add rinse aid?
If code 6-8 reappears shortly after filling the dispenser, the dispenser's level sensor or the dispenser assembly itself may be defective and is not reading the fill level correctly. It is also possible the dispenser door is not sealing or opening properly, causing the rinse aid to drain out faster than expected. Check the dispenser cap for cracks and the door mechanism for obstructions. If those check out, the dispenser assembly likely needs to be replaced.

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