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Error code reference

Maytag Dishwasher Error Code SF2

High Limit Thermostat

Maytag codesMaytag dishwasher codes
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What the SF2 error code actually means

Your Maytag dishwasher detected temperatures inside the tub that were too high, so it automatically shut off the heating element to protect the machine and its contents. This is a safety feature, not just a sensor glitch, so it should be diagnosed before running another cycle. The most likely culprit is a faulty temperature safety switch, but it could also mean the dishwasher is genuinely overheating due to a water fill or heating element problem.

Diagnostic procedure

The full SF2 procedure

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First diagnostic step
Check the high limit thermostat for operation.
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Most common causes of SF2

Ranked by how often they cause this code
  1. 1Faulty High Limit Thermostat
  2. 2Insufficient Water Fill
  3. 3Defective Heating Element
  4. 4Failed Wash Motor or Circulation Pump
  5. 5Control Board Fault

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Questions people ask about SF2

What does SF2 mean on a Maytag dishwasher?
SF2 is a high limit thermostat fault indicating the dishwasher detected a temperature above 155°F inside the tub. As a safety response, the control board stalls the heater circuit to prevent damage. The code points to either a genuinely overheated tub or a high limit thermostat that has failed and is reporting a false reading.
Is it safe to run my Maytag dishwasher with an SF2 error?
It is not recommended to continue running the dishwasher until the cause of SF2 is identified. The code exists specifically to protect the appliance and its contents from heat damage. If the machine is genuinely overheating, repeated cycles could damage the tub lining, racks, or plastic components inside.
How much does it cost to repair an SF2 error on a Maytag dishwasher?
Repair costs depend on the specific failed component. A high limit thermostat is typically an affordable part, and replacement is a moderate DIY repair for those comfortable with appliance work. If the heating element or control board is at fault, parts and labor costs will be higher, generally ranging from moderate to significant depending on local labor rates and the specific parts required.
How do I fix the SF2 error on my Maytag dishwasher?
Start by checking the high limit thermostat for proper operation, as it is the most likely cause. If the thermostat tests faulty, replacing it will typically resolve the code. If the thermostat checks out, investigate the water fill level, inlet valve, and heating element for faults that could be causing a genuine overheating condition.
Will resetting the dishwasher clear the SF2 error code?
A reset may temporarily clear the SF2 code and allow the dishwasher to attempt another cycle, but the fault will return if the underlying cause has not been corrected. Resetting without diagnosing the thermostat or heating system is not a long-term fix and the heater will stall again once the overheat condition is detected.

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