mypros+
Error code reference

GE Range Error Code C3

Communication fail with Upper Mode Encoder.

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 C3 error code actually means

Your GE range is showing a C3 error because the oven's control board has lost communication with the upper knob or selector switch that controls cooking modes. This is usually caused by a loose wire connection or a faulty control component. The range may not function normally until the issue is resolved.

Diagnostic procedure

The full C3 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 harness first and then replace component indicated by Cx Error Code.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
Unlock C3 procedure $9.95

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

Most common causes of C3

Ranked by how often they cause this code
  1. 1Loose or disconnected harness connector
  2. 2Damaged wiring harness
  3. 3Corroded connector terminals
  4. 4Failed upper mode encoder
  5. 5Faulty main control board

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 C3

What does C3 mean on a GE range?
The C3 error code on a GE range means there is a communication failure with the upper mode encoder. The mode encoder is the component that reads the position of your cooking mode selector and sends that information to the control board. When this communication link is broken, the range cannot properly process mode selection inputs and displays the C3 fault code.
Will resetting the GE range clear the C3 error code?
A power reset by turning off the circuit breaker for 30 to 60 seconds may temporarily clear the C3 code, but it will return if the underlying communication fault is not repaired. A reset does not fix a damaged harness or a failed encoder. The code will reappear as soon as the control board attempts to communicate with the upper mode encoder again.
How much does it cost to repair a C3 error on a GE range?
If the issue is simply a loose connector or minor harness repair, costs can be minimal, primarily your time. If the upper mode encoder needs replacement, the part typically costs in the range of $30 to $100 depending on the specific model. Professional repair labor, if needed, can add $100 to $200 or more to the total cost.
Can I fix the C3 error on my GE range myself?
Yes, in many cases a DIYer with basic skills can resolve this error. Start by inspecting the wiring harness connected to the upper mode encoder, checking for loose connectors, damaged wires, or corroded terminals. If the harness looks intact, the upper mode encoder itself will likely need to be replaced, which involves disconnecting the old part and installing a new one.
Is it safe to use my GE range while it is showing a C3 error?
It is generally not recommended to continue using the range while the C3 error is active. Because the error indicates a failure in the mode selection control circuit, the range may not respond correctly to input commands, which could lead to unpredictable cooking behavior. Discontinue use until the fault is diagnosed and repaired.

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

Get Started

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