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WT8840 Water Heater Gas Valve Control, NG - 1" Spud, 5" W.C., WT8840B1000

Brand:
Resideo
SKU:
WT8840B1000
Rating:
(44)
Q&A:
(1)
WT8840 Water Heater Gas Valve Control, NG - 1" Spud, 5" W.C., WT8840B1000
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Hover image to zoom
$192.46 each
In Stock
In Stock
Get 45 Tomorrow, Jun 5
Order by 6PM, receive Tomorrow
Free Shipping This item ships free
Easy Returns No restocking fee for 90 days

Product Highlights

Product Highlight: Fuel Type
Natural Gas
Product Highlight: Body Pattern
90° with 1/2" Inlet and 1/2" Inverted Flare Outlet
Product Highlight: Temperature Range (F)
32°F to 150°F

Description

WATER HEATER GAS VALVE, STANDING PILOT WITH PIEZO, SETPOINT 55-155F, SPUD LENGTH = 1", BRACKET= CENTERED, REGULATOR SETTING= 5" W.C., GAS TYPE=NATURAL GAS

The WT8840 series is the Water Heater Control for trade use to replace WV8840 valves used in AO Smith and Bradford White Water Heaters. It is designed for use in Standing Pilot applications using an immersion well for water temperature sensing. An included integrated NTC temperature sensor reads water temperature within the appliance up to 221 F (105 C).

Application
The WT8840 Water Heater Control is designed for use in Standing Pilot applications using an immersion well for water temperature sensing. All models of WT8840 include an integrated NTC temperature sensor.

The WT8840 is powered from a thermopile heated by the standing pilot flame. CS8840 pilot assemblies are designed for use with this control.

The immersion well for sensing water temperature has matched NTC thermistor sensors. These sensors provide the fail-safe mechanism through which the WT8840 can provide both accurate water temperature control as well as water temperature limit (Temperature Cut-Out [TCO]) function.

Features:
  • Application: Gas control
  • Comments: 87C TCO
  • Mounting: Mounting in the upright position
  • Temperature Ratings (F): Ambient-- 32 F to 150 F; TCO Limit-- 189 F
  • Setpoint Temperature Range (F): Valve-- 55F to 155F
  • Pressure Regulator Setting (psi): 5.0 in. wc
  • Inlet/Outlet Size (in.):1/2 in. NPT x 1/2 in. Inverted Flare
  • Capacity: Min. 30 ft3/hr, Max. 75ft3/hr

Specs

Fuel Type:

Natural Gas

Body Pattern:

90° with 1/2" Inlet and 1/2" Inverted Flare Outlet

Temperature Range (F):

32°F to 150°F

Pressure Reg Setting:

5" W.C. (Pilot & Main)

Spud Size:

1"

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Product Image of WT8840 Water Heater Gas Valve Control, NG - 1" Spud, 5" W.C., WT8840B1000
WT8840 Water Heater Gas Valve Control, NG - 1" Spud, 5" W.C., WT8840B1000
SKU: WT8840B1000
(44)
Natural Gas

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Product Reviews

4.77 out of 44 reviews
98% would recommend this product
4.77
out of 44 Reviews
98% would recommend this product
WRITE A REVIEW
5 star
89%
4 star
7%
3 star
0%
2 star
2%
1 star
2%
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Most Liked Positive Review

Great product.

It's replaced for my gas valve WV8840B1042 perfectly. The information from the website is very helpful to find equivalence part.
VS

Most Liked Negative Review

Not as described

Gas connection on OEM Valve control is reverse threaded. Item that I ordered was described to have reverse threaded gas connection but did not. Ended up buying whole new water hater instead of trying to get resolution for the incorrect part received.
Showing 1-10 of 44 reviews

Great customer service

Product arrived on time
Michelle
El Paso Tx
2 years ago
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Perfect fit

Excellent service
Rt
Gainesville fl
3 years ago
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Exactly what I was looking for:)

I was looking around the web and found this page. I am beyond happy I purchased the valve control here. Not only it delivers fast but it was very easy to install.
Elissa
Hesperia, CA
4 years ago
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Exact Replacement for WV88401042 Honeywell Unit

My whirlpool water heater's gas valve started giving the 5 blinks indicating the temp sensor was bad. When I drained, cleaned, and pulled the unit off the tank it looked fine (I had seen images online of the probe being cracked up) so I cleaned and replaced the original. Worked for 30 minutes and got 5 blinks again, then saw slight amount of water coming from the unit itself. Bought this replacement for my water heater and installed it and it was an exact fit. This Resideo unit looks like a different brand name for Honeywell, but I did notice the temp probe is now metal, not plastic which was the root cause of my failure so hopefully this unit lasts the rest of the life of my water heater.
Ross
Virginia
4 years ago
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Product works great!

I accidentally ordered the wrong part the first time so I ordered the correct one and it got here the next day! It's been working good so far.
Danzer
Ca
4 years ago
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It came fast

The part was the exact match, went back in super easy.
Leroy
North Carolina
4 years ago
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Right part

Finding the right part was the hard part. So many similar. They new what I needed and sent it asap. It worked out perfect.
Don
New York v
4 years ago
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Great product at a great price

The SupplyHouse is a first class act from start to finish. They will always be my go-to place from now on!
Jim
Sedona, Arizona
5 years ago
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Not as described

Gas connection on OEM Valve control is reverse threaded. Item that I ordered was described to have reverse threaded gas connection but did not. Ended up buying whole new water hater instead of trying to get resolution for the incorrect part received.
ohjimmy
California
5 years ago
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Water heater gas valve

My pilot wouldn't stay lit on my whirlpool water heater and the new gas valve fixed the problem. Supply House had one in stock and shipped it to me. Great company and a pleasure to do business with them.
Tom H
Springfield, Ill.
5 years ago
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Product Q&A

1 Question
1 Question
ASK A QUESTION

Q: What is the purpose of the "serial communications" connectors on the control panel? I can find no reference to these in the instructions.

Asked by John 8 years ago

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Verified Author and ReplyVerified Reply- SupplyHouse Staff

Hello John, Unfortunately, there is nothing online that gives a clear enough description, so your best bet is to give Honeywell a call directly and speak to a technician.

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