Amana Dishwasher Error Code 6-6

The 6-6 code means the control board detected incoming water temperature below 84°F (29°C). This is monitored through the OWI sensor and Temperature Sensing Circuit. The control may also trigger this code if it detects a water heating problem and disables the heater as a precaution. The first step is confirming your hot water supply is connected and set to at least 120°F (49°C).

You can run the dishwasher, but it will not clean dishes effectively if incoming water is below 84°F (29°C). Wash performance depends heavily on proper water temperature, and the control may have disabled the internal heater as part of this fault response. It is best to resolve the root cause before relying on the appliance for normal use.

If pre-flushing the hot water at the sink does not clear the 6-6 code, the issue is likely inside the dishwasher rather than the supply. The Temperature Sensing Circuit wiring or the OWI sensor itself may have a fault. Unplug the unit, inspect all connectors in the temperature sensing circuit for corrosion or loose pins, and measure the resistance across the OWI. If resistance reads outside the expected range, replace the OWI sensor.

Start by running the hot water at your kitchen sink for 60 seconds before starting the dishwasher, then check whether the code clears. If it persists, verify your water heater is set to 120°F (49°C) and confirm the dishwasher is connected to the hot water supply line. If those check out, unplug the dishwasher and inspect the wiring and connectors in the Temperature Sensing Circuit, then measure OWI sensor resistance. High resistance on the OWI indicates it needs to be replaced.

If the fix is simply running the sink before starting the dishwasher or adjusting the water heater setting, there is no cost. If the OWI sensor needs replacement, the part typically costs between $20 and $60 depending on the model, and installation is within reach for a confident DIYer comfortable with unplugging the appliance and accessing internal components. If wiring or control board damage is found, professional repair costs will vary by labor rate and parts.