Microwave Broken Cracked Control Knob Parts
Genuine Whirlpool part
By: Whirlpool
Part Number: YRASTBMO203
$104.95
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$17.61
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Genuine Ge part
By: Ge
Part Number: WB27X11018
This relay board controls and distributes power to key components, restoring proper operation when the original board fails. It helps resolve power-routing issues that cause intermittent or non-responsive cooking functions.
- Switches high-voltage loads on/off under control of the main electronics
- Can cause no heat, dead display with power present, or intermittent operation when failing
- May produce clicking without function or blown fuse symptoms if shorted
- Restores consistent power delivery to heaters, fans, or transformers as designed
What's included: 1 relay board assembly Install notes:
- Disconnect power before service; high-voltage components may be present
- Handle the board by edges; avoid touching soldered components
- Photograph wiring and transfer connectors one at a time to matching terminals
- Secure board and verify proper routing before restoring power and testing
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