Whirlpool Microwave Inverter Board W11578579, Replaces W11504539

Is This the Right Part?

✅ Cross Reference Information

Common Symptoms

• Microwave fails to heat properly.
• Microwave shuts down during use.
• Microwave displays error codes.

Check Before Replacing

• Confirm the appliance's complete model number is listed as compatible before ordering.
• Observe whether the microwave heats properly during normal use.
• Note any shutdowns during use or displayed error codes.

Pro Tip

Part Details

Installation Notes

• Disconnect power before installation.
• The board is an internal component; installation involves accessing the control area, positioning connectors, and securing grounding wires.
• Handle electronic components carefully.

Verified Compatible Models

JMC2427LL00, JMC2427LM00, JMC2430IL15, JMC2430LL00, JMC2430LM00, JMW2427LL00, JMW2427LM00, JMW2430LL00, JMW2430LM00, JMW3430LL00, JMW3430LM00, KMBP100ESS20, KMBP100ESS21, KOEC527PBS00, MMW9730FZ20, WOC54EC0HB20, WOC54EC0HS20, WOC54EC0HW20, WOC54EC7HB20, WOC54EC7HS20, WOC54EC7HW20, WOC75EC0HS20, WOC75EC0HV20, WOC75EC7HS20, WOC75EC7HV20, WOEC7030PV01, KOCE500ESS20, KOCE507ESS21, KOEC530PBS01, JMW3430LM03, WOEC5930LZ01, JMW2427LL01, WOC75EC7HS22, KOCE900HBS20, KOCE507ESS22, JMC2427LM01, KMBS730SJP00, WOEC5027LZ00, JMW3430LM02, JMW2427LL02, KOCE500EBS20, MMW9730FZ22, JOECC530RL00, WOC54EC0HS22, WOEC5030LZ01, KOCE507EWH20, WOC54EC7HW22, KOCE507EBS20, KOCE900HBS24, JMW2430LM02, KOCE900HBS23, KOCE900HSS23, WOC75EC0HV22, JMW2430LL03, KOCE500EWH22, KOEC730SBE00, WOC54EC7HW21, KOCE500EWH23, KOCE500ESS22, KOEC530PPS02, KOEC730SPS00, JMW3430LL02, JMC2430LM01, KMBP107ESS20

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