mypros+
Error code reference

Kenmore Dishwasher Error Code F6E6

Incoming water temperature under 18°C/65°F (cool water).

Kenmore codesKenmore dishwasher codes

Incoming water temperature under 18°C/65°F (cool water).

First step from the service manual

Be sure dishwasher is connected to hot water supply. Confirm temperature at sink (recommended 49°C/120°F). Check all connections and measure resistance in temperature sensing circuit.

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

MyPros+ Max

Get the full diagnostic procedure for F6E6.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What F6E6 means on a Kenmore dishwasher

The F6E6 error code on a Kenmore dishwasher indicates that the incoming water temperature is below 18°C (65°F), which the control board has detected as too cool to proceed with an effective wash cycle. The dishwasher measures incoming water temperature through a thermistor or temperature sensor in the water inlet circuit. When the control reads a temperature below the minimum threshold, it flags this fault to prevent poor wash performance or cycle errors caused by inadequately heated water.

The most common root cause is not a faulty component at all, but rather a supply issue. If the dishwasher is connected to a cold water line instead of the hot water line, or if the hot water heater is set too low or located far from the unit, incoming water can arrive below the threshold. The recommended supply temperature is 49°C (120°F) at the tap. Running the hot water at the kitchen sink before starting a cycle helps ensure hot water is already present in the supply line when the dishwasher fills.

When the supply water temperature is confirmed correct and the error persists, the fault shifts to the temperature sensing circuit itself. This includes the thermistor or NTC sensor and its associated wiring harness. A failed sensor can report artificially low temperatures to the control board even when actual water temperature is adequate. Measuring resistance in the temperature sensing circuit is the appropriate next diagnostic step, as a faulty thermistor will typically show an out-of-range resistance reading compared to its specification.

Source: manufacturer service documentation.

Common causes of F6E6

  1. 01

    Cold or inadequate hot water supply

    Wiring / connection

    The dishwasher is not receiving sufficiently hot water because the supply line delivers cold water, the water heater is set too low, or hot water has not yet reached the unit. Run the kitchen sink on hot for 30 to 60 seconds before starting the dishwasher to confirm the supply is delivering hot water.

  2. 02

    Dishwasher connected to cold water line

    Wiring / connection

    If the dishwasher was recently installed or replumbed, verify that the inlet hose is connected to the hot water supply valve under the sink, not the cold. This is a wiring or plumbing error that requires no replacement parts to correct.

  3. 03

    Water heater set too low or malfunctioning

    Wiring / connection

    A water heater set below 49°C (120°F) may cause incoming water to consistently fall under the 18°C threshold depending on line length and heat loss. Check the water heater thermostat setting and confirm hot water temperature at the nearest sink tap with a thermometer.

  4. 04

    Faulty water temperature sensor or thermistor

    Part replacement

    A defective thermistor or NTC temperature sensor can report a falsely low temperature to the control board even when supply water is hot. Measure resistance across the sensor terminals in the temperature sensing circuit and compare to the specified range. An out-of-range reading confirms sensor failure.

  5. 05

    Damaged or open wiring in the temperature sensing circuit

    Wiring / connection

    A broken wire, corroded connector, or loose harness connection between the temperature sensor and the control board can cause inaccurate temperature readings. Inspect the harness for visible damage and check for continuity across the circuit.

See the test procedure for each cause

Frequently asked questions about F6E6

What does F6E6 mean on a Kenmore dishwasher?
F6E6 indicates that the dishwasher's control board has detected incoming water temperature below 18°C (65°F). The dishwasher monitors water temperature through a sensor in the inlet circuit, and this code triggers when that reading falls under the minimum threshold. The issue can be caused by a cold water supply, a low water heater setting, or a faulty temperature sensor.
How do I fix the F6E6 error code on my Kenmore dishwasher?
Start by confirming the dishwasher is connected to your home's hot water supply line. Run the kitchen sink on hot for about 60 seconds before starting the dishwasher to ensure hot water is already in the line. Verify your water heater is set to approximately 49°C (120°F). If the code persists with adequate hot water supply, the temperature sensor or its wiring circuit should be tested for proper resistance values.
Will resetting the dishwasher clear the F6E6 error?
A reset may temporarily clear the code, but it will return if the underlying cause is not corrected. If incoming water temperature remains below 18°C (65°F) or the temperature sensor is still faulty, the control board will detect the fault again during the next fill cycle. Address the root cause before relying on a reset.
Is it safe to use my Kenmore dishwasher while the F6E6 code is active?
Running the dishwasher with this fault active means it is filling with water that is too cool for effective cleaning and sanitization. Dishes may not be properly cleaned, and detergent may not dissolve or activate correctly. It is best to resolve the water supply or sensor issue before continuing regular use.
How much does it cost to repair a Kenmore dishwasher F6E6 error?
If the fix is simply adjusting the water heater temperature or confirming the supply line connection, there is no parts cost involved. If the water temperature sensor or thermistor needs replacement, parts typically range from $15 to $60 depending on the specific model, with professional labor adding $80 to $200 depending on your area and service provider.

Related Kenmore dishwasher codes

All Kenmore dishwasher codes
View all 80 Kenmore dishwasher codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass