mypros+
Error code reference

GE Dishwasher Error Code Turbidity Sensor Low Signal

Turbidity sensor count is less than 50 in 3 seconds.

GE codesGE dishwasher codes
Avg. service call
$285
National average. Trip fee plus diagnostic plus labor. Before parts.
MyPros+ 3-day pass
$9.95
Same diagnostic steps, on your phone. Start now.
You keep in your pocket
~$275
Even before you buy the part.
Skip the service call. Fix it yourself.
Full procedure unlocks instantly.
Get Started

What the Turbidity Sensor Low Signal error code actually means

Your dishwasher has a small sensor that checks how dirty the wash water is so it can clean your dishes properly. This error means that sensor is sending an unusually weak signal, possibly because it is dirty, disconnected, or faulty. A technician will need to inspect the sensor and its wiring to get the dishwasher running correctly again.

Diagnostic procedure

The full Turbidity Sensor Low Signal procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check turbidity sensor and wiring connections.
Unlock with pass
Unlock with pass
Unlock with pass
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
Unlock Turbidity Sensor Low Signal procedure $9.95

Or subscribe: $29/month for unlimited access to all codes plus Max AI diagnostics.

Most common causes of Turbidity Sensor Low Signal

Ranked by how often they cause this code
  1. 1Dirty or fouled sensor lens
  2. 2Loose or corroded wiring connections
  3. 3Faulty turbidity sensor
  4. 4Damaged wiring harness
  5. 5Control board fault

Most DIYers save hundreds by diagnosing before ordering parts.

Get Started

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

Questions people ask about Turbidity Sensor Low Signal

What does Turbidity Sensor Low Signal mean on a GE dishwasher?
This error means the turbidity sensor, which monitors water clarity during the wash cycle, is returning a pulse count below 50 within a 3-second window. The control board interprets this as an abnormally weak or absent signal. The cause is usually a dirty sensor lens, a loose wiring connection, or a failed sensor.
Is it safe to keep using my GE dishwasher when this error appears?
The dishwasher may still run cycles, but without a functioning turbidity sensor it cannot accurately assess water soil levels or adjust wash performance accordingly. Dishes may not be cleaned or rinsed properly. It is best to address the error before continuing regular use.
Will resetting my GE dishwasher clear the Turbidity Sensor Low Signal error?
A reset may temporarily clear the error code, but if the underlying problem with the sensor or wiring is not corrected, the error will return once the control board runs its diagnostics again. A reset is useful for confirming whether the fault is intermittent, but it is not a fix for a genuine sensor or wiring problem.
Can I fix the Turbidity Sensor Low Signal error myself?
Some causes are DIY-friendly. Start by inspecting and cleaning the turbidity sensor lens to remove grease or mineral buildup, then check that all wiring connectors to the sensor are secure and free of corrosion. If the error persists after those steps, sensor replacement or further electrical diagnosis may require a technician.
How much does it cost to repair a Turbidity Sensor Low Signal error on a GE dishwasher?
If only cleaning the sensor lens resolves the issue, there is no parts cost. A replacement turbidity sensor typically ranges from about $20 to $60 in parts, with professional labor adding $75 to $150 depending on your area. If the control board is at fault, total repair costs can be significantly higher.

Related GE dishwasher error codes

All GE dishwasher codes

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

Get Started

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