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Customer Questions and Answers for Syphon Breaker (Dishwasher Drain Air-Break) by Whirlpool

4.89 (64)
By: Whirlpool
Part Number: OEM9220740
Manufacturer Part Number: 285320

This syphon breaker prevents dirty drain water from being siphoned back into the dishwasher, helping maintain proper draining and protect wash water from contamination. It's a direct-replacement drain air-break for compatible dishwashers. What it does:

  • Stops backflow/siphoning from the household drain into the dishwasher
  • Helps maintain proper drain performance and prevents wastewater re-entry
  • Can reduce odors and cloudy or soiled dishes caused by contaminated wash water
  • Works as part of the dishwasher's drain plumbing to preserve wash hygiene
What's included: One syphon breaker Install notes:
  • Disconnect power to the appliance and turn off water supply before servicing
  • Replace only with identical part and ensure correct hose routing and secure clamps
  • Inspect adjacent drain hoses and connections; replace damaged hoses or clamps as needed

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$49.75
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Questions & Answers

For Whirlpool Syphon Breaker (Dishwasher Drain Air-Break) (Part Number: OEM9220740)

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Answer

Dave, This issue will most likely not be caused by a faulty capacitor. For this issue it would be more likely that the contacts in the timer are stuck and causing a crossed signal to the motor. This would require a new timer.

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Answered by AppliancePartsPros.com   |   Tuesday, December 13, 2016

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