Skip to Content
  • time delivery images 2 Day Quick Delivery!
  • box-refresh images 365 Day Return Policy!
  • lovely images 15 million satisfied customers
  • boxes images Over 2.1 Million Parts In Stock
  • headphone imagesFree Tech Support!
  • google images Google Trusted Store

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

More
$49.75
Compare At:
$58.70
You Save:
$8.95

IN STOCK
Ships Today Guaranteed
Add to Cart

Questions & Answers

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

View all Questions

Answer

Steve, The first thing to check is the heigth of the drain pipe. In order to hold the water in the tub properly, the top of the drain pipe must be 38 to 39 inches above the floor level. and make sure the end of the drain hose is not stuffed or sealed to the drain pipe.

Read More...

Answered by AppliancePartsPros.com   |   Wednesday, November 7, 2012

Have questions? Ask our pros!

Contact us in a way that is convenient for you

Call us 1-877-477-7278
Need Help? Chat with a Pro

Share your thoughts with other customers

Answer or comment
  • boxes images Over 2.1 Million Parts In Stock
  • time delivery images 2 Day Quick Delivery!
  • box-refresh images 365 Day Return Policy!
  • headphone imagesFree Tech Support!
  • google images Google Trusted Store