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$170.80 each
In Stock
Get 48 Tue, Jul 7
Order by today, receive Tuesday
This item replaces: 100285165
Free Shipping This item ships free
Easy Returns No restocking fee for 90 days
Description
–
AO Smith 100309396 Kit, Thermostat, PCB Assembly, Universal Et
A replacement thermostat/PCB assembly kit for compatible AO Smith water heater applications where this exact kit is specified.
Key Features:
Compatibility & Applications:
Installation & Operation Notes:
Maintenance & Troubleshooting:
User Reviews & Q&A Summary:
A replacement thermostat/PCB assembly kit for compatible AO Smith water heater applications where this exact kit is specified.
Key Features:
- Kit description on listing: "Kit, Thermostat, PCB Assembly, Universal Et"
- SupplyHouse notes this item replaces part number 100285165
Compatibility & Applications:
- Listed under AO Smith Water Heater Parts (Flanged Elements & Thermostats - Commercial)
- Must only be used in applications where the manufacturer specifies this exact part number: 100309396
- Q&A guidance indicates verifying the correct replacement may require the water heater serial number/model information
Installation & Operation Notes:
- Installation should be performed by a qualified service technician and follow the specific water heater's service/installation manual
- For troubleshooting/part confirmation, SupplyHouse expert responses direct customers to contact the manufacturer for support
Maintenance & Troubleshooting:
- Q&A examples associate replacement consideration with symptoms such as overheating/constant heating and an E02 code; SupplyHouse experts do not diagnose and recommend contacting a local technician or the manufacturer for troubleshooting
- The listing itself does not provide diagnostic procedures; follow the unit's documentation/manufacturer guidance for verification and replacement steps
User Reviews & Q&A Summary:
- Reviews commonly describe it as an exact-fit OEM replacement that restores hot water operation, with multiple mentions of it "solving the issue" and being identical to the original part.
- A frequent theme is an easy/straightforward replacement when following instructions, plus strong satisfaction with shipping speed and customer service.
- Less common feedback notes missing/needed specialty tooling for easier changeout, and Q&A repeatedly emphasizes confirming fit (often via model/serial) and contacting the manufacturer for troubleshooting.
Contact
+
Happy Independence Day!
Our Customer Support will be closed today in honor of Independence Day. We will be back on Sunday to answer your questions.
Call or text 888-757-4774
Special Hours
Closed Now
Monday – Thursday
8am–7:45pm
Friday
9am–7:45pm
Saturday – Sunday
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Product Reviews
4.91 out of 34 reviews
100% would recommend this product
5 star
91%
4 star
9%
3 star
0%
2 star
0%
1 star
0%
Showing 1-10 of 34 reviews
Spot on replacement part. Easy to navigate the website.
Repair part for my A.O. Smith water heater was an exact fit.
Artman
Tucson, Arizona
16 days ago
Verified Buyer
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Great product
Perfect fit for my water heater
Heat
Florida
3 months ago
Verified Buyer
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Shipped Fast and Fix my issues with A.O. Smith Water Heater
Replaced on A.O. Smith Water Heater (EG12-50H55DV 200).
Stephen
Hot Springs, AR
4 months ago
Verified Buyer
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Exactly what I needed to get water bock on.
Fast shipping and easy to install. Got my water heater heating again.
BC
North Carolina
4 months ago
Verified Buyer
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Definitely purchase again
All products I have purchased from the Supply House past and present have been perfect replacements. No returning again and again to get the right part, always delivered the day promised.
Jim
Atwater, Ohio
7 months ago
Verified Buyer
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Professional Company
The Thermostat for my water heater that I ordered was an exact replacement. The order was processed and shipped extremely quickly. I highly recommend this company.
Curt
Lexington Park, MD
7 months ago
Verified Buyer
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Perfect replacement
Instructions were easy to understand and replace part.
Hot water
Kentucky
7 months ago
Verified Buyer
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As always quick shipping
Wasn't completely sure if this was the same as original, but thankfully it was and also solved the issue.
Thanks
JW
Nj
12 months ago
Verified Buyer
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Excellent customer
Package was sent right away and arrived on time. Easy to deal with company. They answered all my questions!
Bob
Phoenix
1 years ago
Verified Buyer
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Fixed my water heater
This thermostat is what I needed to fix my floor water heater, it was the cheapest OEM one I could find and it came quickly
Uncle Turk
Columbia, MO
1 years ago
Verified Buyer
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Free Shipping
On orders over $99
We offer flexible shipping and scheduling options, up-to-date delivery estimates, and free ground shipping on any order over $99 to make sure your order gets to you on-time, for less.
Shipping PolicyEasy Returns
Returning items is as simple as 1-2-3
Ordered the wrong product? Item damaged in transit? Our 3-step process makes returning products easy – even up to a year after purchase – with no restocking fees on returns made within 90 days.
Return Policy