GE Appliances Dishwasher Configured Service Machine Control Board WD21X27138, Replaces WD21X26941, WD27X27023 – Superseded by WD21X32938

Configured service machine control board for compatible GE-family dishwashers.

Is This the Right Part?

✅ Cross Reference Information

Common Symptoms

• Dishwasher remains unresponsive or does not begin a cycle.
• A cycle stops or fails to progress normally.
• Wash, drain, or heating functions may not operate when the control board is defective.

Check Before Replacing

• Confirm that WD21X27138 is the correct board for the complete dishwasher model number before diagnosing the part.
• Verify the dishwasher has incoming power and that the breaker, GFCI, junction-box wiring, and power connections are intact.
• Check that the door is fully closed and that the door-latch circuit is not preventing operation.
• With power disconnected, inspect accessible wiring harnesses, connectors, and the board area for loose connections, corrosion, moisture, or visible burn damage.
• Do not condemn the control board solely from a no-start symptom; rule out power, door-latch, wiring, and user-interface issues first.

Pro Tip

Part Details

Key Features

• Genuine GE Appliances service part.
• Configured machine control board for GE-family dishwashers.
• Controls core dishwasher operations, including cycle execution and component switching.
• GE lists the original WD21X27138 as no longer manufactured.
• The documented current manufacturer replacement is WD21X32938.

Installation Notes

• Disconnect electrical power to the dishwasher before accessing or replacing the control board.
• Use the complete dishwasher model number to confirm the replacement and configuration.
• Photograph or label connector locations before disconnecting the original board, then reconnect each harness to the corresponding location.
• Inspect connectors and wiring for damage or moisture before fitting the replacement.
• After installation, restore power and verify that the dishwasher powers on and begins the appropriate test or operating cycle according to the appliance’s service instructions.

Verified Compatible Models

GDF450PGR0BB, GDF450PGR0WW, GDF450PGR1BB, GDF450PGR1WW, GDF450PGR3BB, GDF450PGR3WW, GDF450PGRABB, GDF450PGRAWW, GDF450PSR0SS, GDF450PSR1SS, GDF450PSR3SS, GDF450PSRASS, GDF510PGR0BB, GDF510PGR0WW, GDF510PGR1BB, GDF510PGR1WW, GDF510PGR3BB, GDF510PGR3WW, GDF510PSR0SS, GDF510PSR1SS, GDF510PSR3SS, GDF510PSRASS, GDF511PGR0BB, GDF511PGR0WW, GDF511PGR1BB, GDF511PGR1WW, GDF511PGR3BB, GDF511PGR3WW, GDF511PSR0SS, GDF511PSR1SS, GDF511PSR3SS, GDF535PGR0BB, GDF535PGR0CC, GDF535PGR0WW, GDF535PGR1BB, GDF535PSR0SS, HDF310PGR0BB, HDF310PGR0WW, HDF310PGR1BB, HDF310PGR1WW, HDF310PGR3BB, HDF310PGR3WW, HDF310PGRAWW, HDF330PGR0BB, HDF330PGR0WW, HDF330PGR1BB, HDF330PGR1WW, HDF330PGR3BB, HDF330PGR3WW, HDF330PGRABB

Fitment reminder: Match the complete appliance model number, including suffix or revision where applicable, before ordering.