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Error code reference

Whirlpool Dishwasher Error Code FCE4

Antenna B problem (washer/dryer)

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What the FCE4 error code actually means

Your Whirlpool dishwasher is showing an error because a small internal antenna component or its wiring has a loose or faulty connection. The dishwasher detected that this part of its communication system is not working properly. In most cases, a technician can resolve this by inspecting and reconnecting the wiring or replacing the antenna component.

Diagnostic procedure

The full FCE4 procedure

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1
First diagnostic step
Unplug appliance or disconnect power and check all connections in Antenna B circuit. Fix/replace Antenna B.
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Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of FCE4

Ranked by how often they cause this code
  1. 1Loose Antenna B connector
  2. 2Corroded or oxidized connection terminals
  3. 3Damaged Antenna B wiring harness
  4. 4Faulty Antenna B component
  5. 5Control board fault

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Questions people ask about FCE4

What does FCE4 mean on a Whirlpool dishwasher?
FCE4 indicates a problem with the Antenna B circuit, specifically a loose or faulty connection detected by the control system. The dishwasher has lost the expected signal continuity from Antenna B and has stored this fault code as a result. Resolving it requires inspecting all connections in the Antenna B circuit and repairing or replacing any damaged components.
Is it safe to use my Whirlpool dishwasher when FCE4 is displayed?
The FCE4 code points to a communication or sensing circuit fault, and running the dishwasher while this fault is active is not recommended. The appliance may not operate as intended, and continuing to run it could mask other developing issues. It is best to address the fault before resuming normal use.
How much does it cost to repair a Whirlpool dishwasher showing FCE4?
If the fix is simply reseating a loose connector, you may incur only a service call fee, typically in the range of $75 to $150 depending on your area. If the Antenna B component or wiring harness needs replacement, total repair costs including parts and labor could range from $150 to $350 or more. Control board replacement, if required, would fall on the higher end of repair estimates.
How do I fix the FCE4 error on my Whirlpool dishwasher?
Start by disconnecting power to the dishwasher, either by unplugging it or turning off the circuit breaker. With power off, locate and inspect all connectors in the Antenna B circuit, reseating any that are loose. If connections appear intact and the code returns after restoring power, the Antenna B component itself may need to be replaced.
Will resetting my Whirlpool dishwasher clear the FCE4 error?
A reset may temporarily clear the FCE4 code from the display, but if the underlying connection problem in the Antenna B circuit has not been fixed, the code will return. A reset alone is not a repair. The physical wiring and component must be inspected and corrected to resolve the fault permanently.

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