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92% positive over last 12 months
Resideo WT8840B1000 Water Heater Gas Control Valve, NAT 160 Degree F 1" Cavity
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Return this item for free
Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
Learn more about free returns.- Go to your orders and start the return
- Select the return method
- Ship it!
Purchase options and add-ons
Brand | Honeywell |
Item Dimensions LxWxH | 8 x 6 x 6 inches |
Outlet Connection Type | Flare |
About this item
- Mounting in the upright position
- Temperature ratings: ambient-- 0 c to 60 c. Inlet/Outlet Size (in.) - 1/2 inch. NPT x 1/2 inch. Inverted Flare. Capacity - Min. 30 ft3/hr, Max. 75ft3/hr
- Pressure regulator setting (psi): 5.0 in. Wc
- Temperature Range: 32 to 150 F
- An included integrated NTC temperature sensor reads water temperature within the appliance up to 221 F (105 C)
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Frequently bought together
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Product details
- Is Discontinued By Manufacturer : No
- Product Dimensions : 8 x 6 x 6 inches; 1.98 Pounds
- Item model number : WT8840B1000
- Date First Available : March 15, 2017
- Manufacturer : Honeywell
- ASIN : B06XNSV2BG
- Best Sellers Rank: #48,363 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement)
- Customer Reviews:
Product Description
The Wt8840 Series Is The Water Heater Control For Trade Use to replace WV8840 valves on AO Smith water Heaters. It Is Designed For Use In Standing Pilot Applications Using An Immersion Well For Water Temperature Sensing. Made in United States. Manufactured by Honeywell.
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Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the performance, ease of installation, value, and fit of the valve. For example, they mention that it works great, it's easy to install, and it'll save you money. Some appreciate the fit. That said, opinions are mixed on quality and lighting.
AI-generated from the text of customer reviews
Customers like the performance of the valve. They mention that it works great, is easy to install, and has no issues. Some say that it has worked for much longer than originals.
"It is working very well." Read more
"Fast delivery, good insulation instructions, works like new." Read more
"...Be sure to have a backup or use previous.So far this is working great. I had to reset the Honeywell, because it gave me a error 7 code...." Read more
"...the valve body out to transplant it in my original housing, worked like a champ. Rheem performance water heater." Read more
Customers find the installation of the valve pretty easy. They appreciate the simple instructions and procedure. Additionally, customers mention that the YouTube and included instructions were very helpful.
"Fast delivery, good insulation instructions, works like new." Read more
"...This unit with the white led, has never shut down. Install was simple, just remove old unit assembly and swap directly.." Read more
"...It’s a direct fit for many brands of gas water heater and easy to install" Read more
"...The YouTube and included instructions were very helpful. I'm delighted and saved hundreds...." Read more
Customers appreciate the value of the valve. They say it's easy to install, saves money, and is worth the buy.
"...Bought these and have worked for much longer than originals! Worth the buy and reasonably priced!" Read more
"Great price. Does what it's supposed to." Read more
"...Easy to replace. Great product." Read more
"good for the price." Read more
Customers like the fit of the valve. For example, they say it's a direct OEM fit for their water heater and works well. Some mention it'll fire right up.
"excellent quality fit just like original" Read more
"Fit and works perfectly for my State model GS640YBRT 300 natural gas 40 gallon water heater manufactured and installed in 2011...." Read more
"Perfect fit and fired right up." Read more
"Would not screw it ! as to short !" Read more
Customers find the replacement valve fairly simple, easy to find, and install. They say it's a great replacement part and works perfectly. Some mention that the pilot stays lit.
"It was very easy to replace my old / damaged control valve." Read more
"...Easy to replace. Great product." Read more
"It was a good replacement part." Read more
"...I took a chance and bought this controller. It was easy to replace. The pilot stays lit. My family claims that they love me again...." Read more
Customers are mixed about the quality of the valve. Some mention that it's a good product with great quality, while others say that it was a defective unit that fell apart after 3 months.
"...I had to reset the Honeywell, because it gave me a error 7 code...." Read more
"quick and correct" Read more
"...This thing crapped out in Feb. Imagine that. They've got this down to a science!..." Read more
"...It is legit." Read more
Customers are mixed about the lighting of the valve. Some mention that it's a perfect replacement that keeps the pilot light lit and makes the burner light up, while others say that it doesn't stay lit.
"The unit worked very well. The water heater came on with no problem." Read more
"Old unit wouldn’t stay lit or heat the water totally. Kept giving me code 5 or 5 flashes before...." Read more
"Perfect fit and fired right up." Read more
"It worked. The pilot indicator did not flash when pilot was ready did have flame when adjusting the temperature knob the burner lite created hot..." Read more
Customers have mixed opinions about the heating of the valve. Some mention that it heats up the water hotter than the previous unit, and beats a cold shower. However, others say that their water heater stopped heating overnight, and the product went out.
"...cracks, sensor gets fried, you get a flashly blinky error and no hot water...." Read more
"...Works perfect and beats a cold shower, It is exactly as described." Read more
"...Side note poor heating started this whole problem and I never had an error code...." Read more
"Very easy to install. Actually heat up the water hotter than the previous unit...." Read more
Reviews with images
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Top reviews
Top reviews from the United States
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Additionally, if you are getting the 5 blinking dots, indicating a bad sensor, you can fool the valve while you wait for the new one. Turn temperature knob off, disconnect either the red or white wire until the unit stops blinking. Reconnect the wire, light pilot. Once you have the one blinking light indicating a good pilot, turn temperature knob to desired heat setting. The burner will fire up and heat water to desired temperature and then the sensor will trip out again. You can do this for a day or two while you wait for your new part to be delivered.
I recommend draining the tank fully, it's just easier, but takes more time. You'll need an adjustable wrench, maybe a pair of long nose pliers. And of course, pipe plumber's tape for the threads screwing into the tank and maybe some pas pipe plumber's tape (yellow) for the gas line. The total time is about an hour, most of that was waiting for the tank to empty.
The Honeywell did not want to install squarely at first, which if not caught can ruin threads.
The nut and ferrule that comes already in the Honeywell for the pilot gas line would not work on the outgoing gas line; the nut and ferrule were both too big. Be sure to have a backup or use previous.
So far this is working great. I had to reset the Honeywell, because it gave me a error 7 code. I panicked at first, but then found that you need to turn it off> turn knob from low to just past high seven times in under thirty seconds to clear error.
The only thing I do not like about this piece upon firing it up is that it takes far longer to ignite the pilot than the previous version I was using. It takes many, many more attempts.
IF this items craps out I'll be sure to throw a fit (I just went a week without hot water) and then reply back to here.
Today on my Rheem 40 gal gas water heater it took about 30 minutes to heat up so far so good will do another review if need be o yeah Amazon is the best place to buy the Honeywell gas valve hand down 💯
Top reviews from other countries
Oh I was so disappointed!!!! Can’t they all be universal!
Item was in perfect new shape. The shipping only took 4 days!!!!!!
This is the first time I have ever had to return anything. So we will see.
So far seller was excellent!!!
UPDATE: my refund was returned.
With everything I experienced with this seller, if given the opportunity, I would definitely buy again
Reviewed in Canada on November 27, 2019