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Error code reference

GE Dishwasher Error Code F49

Turbidity sensor reading low (possible short on sensor).

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What the F49 error code actually means

The F49 code means your dishwasher's water clarity sensor sent a weaker signal than expected to the control board. This sensor normally helps the dishwasher decide how long to run and how much water to use based on how dirty the wash water is. In your model, this particular code is inactive in the control logic, so the dishwasher will continue running normally and does not change its behavior based on this fault.

Diagnostic procedure

The full F49 procedure

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1
Confirm the fault
Power cycle the unit: switch off the breaker for 60 seconds, then restore power. If the code returns, the fault is persistent and the procedure below isolates the cause.
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Most common causes of F49

Ranked by how often they cause this code
  1. 1Turbidity sensor signal drop below minimum threshold
  2. 2Control board logging residual or ghost fault
  3. 3Turbidity sensor with intermittent output

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Questions people ask about F49

What does F49 mean on a GE dishwasher?
F49 means the control board detected a low signal from the turbidity sensor, which measures how dirty the wash water is. GE has designated this fault as unused, meaning the dishwasher's control system does not take any corrective action based on this reading. No repair is needed based on this code alone.
How do I fix F49 on a GE dishwasher?
No fix is required. GE's service documentation for F49 states the fault is not used and should be ignored. You can clear the error code by cutting power to the dishwasher at the circuit breaker for 30 seconds and restoring it. If the code returns repeatedly and you notice actual wash quality problems, a turbidity sensor test would be the next step.
Do I need to replace the turbidity sensor to clear the F49 code on my GE dishwasher?
No. Replacing the turbidity sensor is not necessary to address F49. The code can be cleared by cycling power to the dishwasher. Since GE marks this fault as unused and non-actionable, replacing the sensor would not resolve anything and is not a recommended step unless separate diagnostic testing confirms the sensor is faulty and affecting wash performance.
Can I still use my GE dishwasher with the F49 error code showing?
Yes, you can continue using your dishwasher normally. GE explicitly marks F49 as a non-actionable fault to be ignored. The dishwasher will run its cycles without any degradation in function caused by this code. If wash performance seems poor, investigate other potential causes unrelated to F49.
How much does it cost to repair a GE dishwasher F49 error?
Repairing F49 costs nothing because no repair is needed. GE designates this as an ignored fault. If you choose to replace the turbidity sensor anyway, the part typically costs between $20 and $60, and installation is a moderate DIY task requiring disassembly of the lower dishwasher interior. A technician visit to perform this would generally cost $100 to $200 in labor.

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