28QBP0491, Microwave Universal Door Switch, 3 Wire, 3/16" Male Terminals, 21 Amp

Universal Microwave Door Switch | 28QBP0491 | 3-Terminal | 21A | OEM-Compatible

Restore safe and reliable microwave operation with this brand-new universal door switch, model 28QBP0491. Designed with a 3-terminal SPDT configuration and 3/16" male connectors, this high-quality switch is rated for 21 amps and fits a wide range of microwave ovens. Ideal for replacing worn or faulty interlock switches that prevent the microwave from starting or cause intermittent power loss.

⚙️ Technical Specifications:

• Type: Microwave Door Interlock Switch
• ️ Model: 28QBP0491
• Terminals: 3/16" male spade connectors (3-terminal SPDT)
• ⚡ Rating: 21A @ 125/250VAC
• Condition: Brand New – Unused
• Application: Universal fit for compatible microwave ovens

✅ Replaces Part Numbers:

TJ28QBP0491, ES0491, AP5633420, WB24X830, WB24X831, WB24X832, 3B73362F, 3B73362G
(Please verify terminal size and amperage before ordering.)

✅ Fits Models:

Compatible with many microwave brands including GE®, Whirlpool®, Kenmore®, Frigidaire®, Maytag®, and others. Model-specific fitment not listed—please confirm physical and electrical compatibility before ordering.

Common Fixes:

• ❌ Microwave won’t start or respond
• ⚠️ Door not registering as closed
• Intermittent power or heating failure
• Burnt or damaged switch terminals

️ Installation Tips:

• Disconnect microwave from power before servicing
• Access switch behind control panel or door latch housing
• Remove mounting screws and disconnect wire terminals
• Install new switch using original hardware and terminal positions
• ✅ Test door function and microwave startup before reassembling cabinet