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Performance Analysis

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Prototype vs. Projected React Build

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faster load with React + code splitting + image optimization
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What improves in the React build (all else equal):
  • Code splitting — only the current page's JS is loaded
  • Image optimization — WebP conversion + lazy loading via React Image
  • CDN caching of static assets via Vercel/Netlify edge network
  • Tree-shaking removes unused CSS and JS from the bundle
  • Prefetching — next pages load before the user clicks

Developer note: Remove this banner and modal entirely from the React production build.

Same-day shipping on in-stock parts ordered by 3 pm CST Mon–Fri · Free diagnosis help: 817.472.7740

Home / Shop / Dishwasher Parts / ER 661566 Thermostat for Dishwasher

ER 661566 Thermostat for Dishwasher

Other · Dishwasher Parts

ER 661566 Thermostat for Dishwasher

Part # ER661566Sold by U-FIX-IT Appliance Parts

$17.99

In stock
  • Ships same day if ordered by 3 pm CST Mon–Fri
  • 1-year replacement warranty unless stated on your receipt. Warranty & returns
  • Free pickup at Arlington, East Dallas, South Dallas or Tyler
  • Not sure it’s the right part? Free diagnosis help: 817.472.7740
  • Secure checkout

Part details

The ER 661566 Thermostat for Dishwasher (part # ER661566) is a dishwasher replacement part and replaces 661566. $17.99 at U-FIX-IT.

Part #ER661566
BrandOther
ApplianceDishwasher Parts
Replaces661566
Price$17.99
Availability6 in stock

ER 661566 Thermostat for Dishwasher

Part No. ER 661566

Part Purpose: Regulates the water temperature during the dishwasher’s wash and rinse cycles to ensure efficient cleaning.

Part location on appliance: Sometimes located on a wire harness by the bottom of the door or sometimes located at the bottom of the dishwasher, often near the heating element.

Part failure symptoms:

  • Dishes not getting cleaned properly due to low water temperature.
  • Dishwasher not advancing through cycles.
  • Overheating or dishwasher shutting off unexpectedly.

Part diagnosis: Test the thermostat with a multimeter for continuity and inspect for visible damage or burn marks. If the thermostat is faulty, it should be replaced. Alternatively, call the U-FIX-IT store for free diagnosis assistance.

Cross Reference Info: Replaces 661566

What customers say about U-FIX-IT

Store reviews from ufixit.com. This part has no product reviews on the live site yet product reviews: none on live site

“Honestly I called to check and see if they had a part in stock, and didn’t even end up using them or buying from them, but was just generally impressed with the customer service that I received on the phone. The…”Kirby J · customer review on ufixit.com
“Came in to ask about a part for my washing machine and was assisted by this newer gentleman, Josue. He gave me some great tips for installing and now, thanks to this extremely helpful young man, my washing machine is…”Lisa Panelli-Valentin · customer review on ufixit.com

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