Reliance Hot Water Heater Gas Control Valve 100112336 1" Cavity Thermostat Compatible with Reliance, State, A.O. Smith, and American branded heaters
Condition: New
Buy Now, Pay Later
As low as
$22.80
/ mo
Learn more
- – 6-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Free shipping on this product
30-day returns
Learn more
30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Aug 8 – Aug 9
Recently Viewed
Features
- PLEASE PROVIDE MODEL AND SERIAL NUMBER OF YOUR WATER HEATER IF YOU NEED US TO DETERMINE CORRECT GAS VALVE PART NUMBER!
- gas control valve is compatible with all A.O. Smith manufactured products including A.O. Smith, Reliance, State, and American branded heaters
- Temperature control assembly 100112336 supplies the burner with gas to heat the water
- Please be aware part may come labeled RESIDEO as there was a corporate acquisition. It is still the correct part!
- A service technician is recommended for the repair to ensure the gas supply line is leak free
Description
Reliance 300 series, electronic gas thermostat control valve, thermostat powered by 750 millivolt generator, noticeable L.E.D. indicator light blinks 1 time at 3 second intervals during normal operation, increased temperature control and accuracy, integral spark igniter, only for Reliance standard natural gas water heaters with electronic thermostat control.
Brand: Reliance
Model Name: 300 series
Controller Type: Push Button
Special Feature: Lighted
Color: Gray
Controller Type: Push Button
Additional Features: Lighted
Specific Uses For Product: Water Heater Temperature Control
Temperature Control Type: automatic
Connectivity Technology: Wired
Power Source: 750 millivolt generator
Display Type: LED
Control Type: Button Control
Control Method: Touch
Connectivity Protocol: BACnet MS/TP
Mounting Type: None" or "Direct Mount
Backlight: No
Finish Types: Glossy
Brand Name: Reliance
Model Name: 300 series
Included Components: 1 x Limit Switch, 1 x Thermostat
Model Number: 100112336
Manufacturer: A.O. Smith Reliance
Unit Count: 1.0 Count
Manufacturer Part Number: 100112336
Color: Gray
Product Style: minimalist
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Aug 8 – Aug 9
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
Similar Products
$14/mo*
Rheem 18kW 240V Tankless Electric Water Heater, Gray
$26/mo*
Rheem 72-30-2 240V / 4500W 30 Gallon Electric Water Heater
Top Amazon Reviews
This control unit is exactly what was needed to get the hot water flowing again. Status light is white and brighter than the original. Followed Honeywell directions that said no pipe tape sealant on supply side. Compression fittings don’t need tape either. Leak checked and no problems. A small length of pipe screwed into the supply side makes for a convenient handle to remove the old unit and screw in the new one without damaging it. Quick and easy. Good deal. The failed unit was only 4 years old but I suspect the wild ambient temperature swings where it is installed caused the unit to fail. This time I will insulate it to make it last longer.
...
show more
Reviewed in the United States on September 21, 2019 by Divo Maddie
These Honeywell electronic gas control valves are designed to prevent serious malfunctions from causing major damages or fires, but the problem is when they detect a fault they may never work again. There are some hacks out there that may get the valve to working again but usually they are futile. Amazon's pricing for this gas control valve is good, considering free, fast Prime delivery. Beware, there are similar looking Honeywell valves on the market, some of which cost less, so make sure you are getting the correct part number for your hot water heater. The valve is relatively simple to change with minimal tools. Make sure you turn off and fully drain the hot water heater first. Since gas lines are involved you may want to hire a licensed plumber to install the valve, unless you are confident in your abilities,
...
show more
Reviewed in the United States on April 12, 2020 by Phil B
This replacement valve was exactly as expected. It arrived on time and as described. If you have some knowledge of water heaters and plumbing, it is fairly simple to install. There are multiple videos explaining installation. I would recommend replacing any plastic drain valves with a ball valve on the tank and replacing the pressure relief valve also while you have it drained. Both are pretty simple to do and will save you some potential trouble in the future. I would recommend purchase from this seller and the product is perfect. Cannot attest to the reliability of the valve as it has only been installed for a week or so. But, it is functioning perfectly now and at $129 and the time it took to put it in, it sure beats $600 for a new tank and the time it takes to put one of those in!
...
show more
Reviewed in the United States on January 6, 2021 by Kindle Customer
The gas regulator unit went out on my hot water heater. Cold showers ensued for three days! First plumber we talked to said he’d replace the whole heater only -$2K. Finally a plumber came out and said I could do this myself, he had the price list for local plumbing supply (they don’t sell these at HD or Lowes) -$350. Got right on Amazon and got this one for less than half that, delivered next day. Took longer to drain the heater than it did to install the new unit, which works great. Wish all my DIY projects had such happy ending
...
show more
Reviewed in the United States on April 10, 2022 by TR
It was a direct cross for our failed unit WV8840B1109 to this new WT8840B1000. New unit comes with a new compression nut and compression ferrule for the pilot light tube. I would suggest you use it. Remember the burner and pilot nut are left hand threads Tools needed: wrenches 7/8", 3/4", 7/16" and I used one adjustable wrench small tubing cutter and tread sealer. Total time took a little over an 1.5 hour mostly due to the location of the water heater. It lit the pilot light almost immediately and the burner kicked in. No gas or water leaks, will check again in the morning.
...
show more
Reviewed in the United States on September 30, 2022 by Ashley M
The gas control valve on my 9 year old AO Smith hot water heater went out with the 5 blinks of death. The nice thing was it was still producing enough hot water for 1 minimally acceptable shower since it took a few weeks to get fixed. My plumber recommended full replacement but when I saw the price of the part I decided to risk a repair. I read online that AO Smith tanks can last 20+ years. If this tank lasts 3 more years I will have broke even compared to replacement including labor. I am glad I hired a plumber as my tank would not drain until they removed the pop off valve plus I don't like to mess with gas. The valve was the perfect fit for my tank. I provided the vendor with my tank's serial number and they told me the exact part to order.
...
show more
Reviewed in the United States on December 13, 2020 by JHM
Saved a lot of money by replacing the control valve instead of the entire water heater. This price was good for an OEM replacement part.
Reviewed in the United States on October 6, 2024 by John Y.
I had to hire a plumber to come out an replace the sensor. Put in my old part number and this item popped up. The first pic is exactly what my old one looks like. However, did not notice that the 3rd pic is a completely different model. Well needless to say, the part arrived and when my plumber too it out of the box, it was the sensor shown in pic #3. I had already drained my water heater in preparation for the plumber. So 50 gallons of water into the gutter. I am so angry and will have no hot water for days now. Ordered the CORRECT one from a company other than this one.
...
show more
Reviewed in the United States on August 10, 2022 by Joel