Whirlpool Dishwasher Error Code 6-7

Error code 6-7 means the control board has lost communication with the flowmeter, which monitors water flow through the dishwasher. The fault can also be triggered by the salt level sensor, which is part of the same circuit. The board detects either no signal or an invalid signal and stops the cycle as a precaution.

Running the dishwasher with an active 6-7 code is not recommended. The flowmeter is part of the water delivery monitoring system, and without a confirmed signal the control board cannot verify that water is moving through the machine correctly. Continuing to run cycles could result in poor cleaning performance or potential damage if water fill and flow are not operating as intended.

Either component can cause the 6-7 code because both the flowmeter switch and the salt level sensor are monitored in the same diagnostic circuit. Check connections at both components before testing them with a multimeter. Whichever component tests as faulty, or whose connector was found disconnected, is the source of the fault.

Start by unplugging the dishwasher or shutting off its circuit breaker, then inspect the wiring connectors at both the flowmeter and the salt level sensor for looseness or corrosion. Reseat any loose connectors and restore power to see if the code clears. If it does not, use a multimeter to test the flowmeter switch for continuity when activated and check the salt level sensor against its specified resistance range. A failed flowmeter or sensor will need to be replaced.

If the fix is a reseated connector, the repair costs nothing beyond your time. A replacement flowmeter assembly typically runs between $30 and $70 for the part, and a salt level sensor is generally under $40. If you hire a technician, expect a service call fee plus labor, which commonly brings the total to $100 to $200 depending on your area and which part needs replacement.