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Supco

Supco 43054 Electronic Digital Wall Thermostats with Blue Back Light, 45 to 95 Degree F, 20-30 VAC

    • Based on 495 reviews
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Availability: Only 4 left in stock, order soon!
Fulfilled by HVAC Surplus Store
Arrives Mar 19 – Mar 21
Order within 22 hours and 46 minutes
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Features

  • Electronic digital accuracy
  • Large LCD, easy-to-read display
  • No programming required
  • Soft Touch buttons
  • INDIGLO night-light

Description

For conventional systems and single-stage heat pumps with blue back light. Electronic digital accuracy. Large, easy to read LCD. Filter change indicator. No programming required. No leveling required. Terminations: RC/O,RH/B, Y, W, G, R. Bimetal freeze protection. Latching relays for system compatibility. Soft touch keypad. Low battery indicator. Indiglo Backlight. Easy, front load battery access. 2 AA batteries included. Are compatible with: 24 VAC heat/cool, Heat only or cool only systems, gas, electric or oil systems, millivolt systems, 2 wire hydronic systems (Not for use with 110/220V systems). Have These Specifications: 20-30 VAC, 50/60 Hz, Current draws 0.1 to 1.5 amps, Temperature set range: 45 - 95 degrees Fahrenheit. Operating differential +/- 1 degrees Fahrenheit. Compressor protection: 4 min. delay on break. 3 year warranty.

Brand: Supco


Model Name: Supco 43054 Electronic Digital Wall Thermostats with Blue Back Light, 45 to 95 Degree F, 20-30 VAC


Controller Type: Touch


Special Feature: 2 - AA batteries


Color: Blue


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 1.25 x 4.75 x 4 inches; 8 ounces


Item model number ‏ : ‎ 43054


Batteries ‏ : ‎ 2 AA batteries required.


Date First Available ‏ : ‎ October 3, 2011


Manufacturer ‏ : ‎ Supco


Country of Origin ‏ : ‎ China


Best Sellers Rank: #213,955 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #278 in Home Programmable Thermostats


#278 in Home Programmable Thermostats:


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Mar 19 – Mar 21

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.

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Top Amazon Reviews

    • Bought this Thermostat 15 years ago
I looked at Smart thermostats. For myself, I didn’t want to get into Alexia yet because it felt intrusive. So, I bought this same thermostat I had when I put a new air conditioner in 15 years ago. I had to replace the old as the buttons were not working properly. I didn’t even have to replace the wiring. I just popped the new front in and presto! My air conditioner is working fine now. ... show more
Reviewed in the United States on May 5, 2024 by SusanD
    • Easy and simple
I had the same brand and style for years then it slowly went out. So I got this one because they were identical so all I had to do was pull the one off and hooked it to the same mount that was for the old one. Works perfect and I do like the that they added a blue light goes one when your changing the temp!! ... show more
Reviewed in the United States on January 10, 2022 by KristinK00
    • Very impressed with the product
Excellent probably saved me $100 by insatalling it myself.
Reviewed in the United States on February 27, 2025 by Richard F Miller
    • A little off
Easy to install and easy to use. The only problem is that it will not turn on until it's two degrees over the degrees on it. In other words, if you put it at 78 degrees it will not start until the house hits 80 degrees. I mean that could save you money but damn it'll get hot in your house.
Reviewed in the United States on June 26, 2022 by Sergio Calderon
    • I can't imagine a better non-programmable thermostat
When I was converting my old HVAC system from full line voltage to low-voltage digital controls, I bought this thermostat to control the relays I used for the conversion. One of the features I like most is the adjustable "span" that controls the temperature differential between shut-off and turn-on. During moderate weather, you can adjust the span to 1 and the set temperature can be maintained very closely without putting an undue burden on the system. During more extreme weather, you can set the span as high as 3 degrees for wider temperature swings, to avoid the short-cycling that can reduce the life of your HVAC system. Many thermostats don't have this feature. Another feature I like is the blue backlight, which also stops working when the batteries are low to conserve power. And speaking of batteries, I like that it uses AA instead of shorter-life AAA, and I don't have to disassemble anything to replace them because they're right behind a door that swings open from the front. The one design feature I find somewhat odd is the fact that they located the filter replacement reminder reset button so prominently (the small button) on the front, instead of behind the door, but the good news is that resetting the reminder requires pressing and holding the button for 3 seconds to prevent resetting it accidentally. Finally, I'll mention the main reason I was looking for a thermostat in the first place. I already had a Honeywell thermostat that I had bought for my low-voltage conversion, but in testing it I discovered that it was just too sensitive to transitory temperature variations, such as even minor handling of the thermostat case itself. That's something you can't know until you actually make the purchase, and luckily I found that the Supco strikes a better balance in this regard, with a few extra features thrown in. Can you tell that I'm delighted with this thermostat? The whole low-voltage conversion was a bit of a pain, but definitely worthwhile, and even more so because I found the right thermostat. ... show more
Reviewed in the United States on October 23, 2013 by GaryM
    • RV workaround for automatic heater firing at 41 deg. and below.
Review Image by BarneyRubble BarneyRubble
Review Image by BarneyRubble BarneyRubble
Review Image by BarneyRubble BarneyRubble
Works great. For RV use BE AWARE IT WILL ALWAYS FIRE THE HEATER AT TEMPERATURES 41DEG AND BELOW!!!, even if it is turned off, and even if the batteries are removed!!!! This is noted on the owners manual under "Mechanical Heat Backup". Not so good for us up north where the RV is outside all winter. You must remove the thermostat from the wall to prevent this. To permanently disable this feature you can remove the bimetallic switch from the thermostat. To remove the bimetallic switch, remove the thermostat from the wall/backing plate and turn it over. There is a large silver colored square device soldered to the lower left corner of the circuit board, below where the batteries are. "SW5" identifies it on the board. If you look closely it has "5 C" stamped on it. (Of course 5deg C is 41deg F). You can carefully snip it off where it is soldered to the board, or I just snipped one leg off and bent it up to break the connection but left it there in case I ever want this feature back. This is a good safety feature for household use in that it will still keep the heat above freezing even it the batteries die in the thermostat. ... show more
Reviewed in the United States on October 21, 2017 by BarneyRubble BarneyRubble
    • Not the same as my old one
This thing is useless. I have used this exact same product for the last nine years with problems only occurring in the last two months. I know exactly how it is supposed to operate. It’s tricky, but not impossible. Until this unit… The temperature can never be made exact. The up arrow — even when touched gently — races up to a much higher temperature than you want. Then you are stuck with that one. I know to wait until it blinks to make a change, but the controls are basically useless. You cannot go up one degree; you have to go up three or four degrees. I actually touched the down arrow and the temperature screen showed the temperature going up! I bought this for $33 only 10 days ago. At that point it was an Emerson Climate Technologies product. Now in such a brief time apparently it has been sold (or rebranded) to Supco, and the price has significantly increased. I would suggest that you do not buy this product. Something fishy is going on with the company, and the product itself is junk. I could not contact customer service via telephone or email. Emerson is a HUGE company; they do not care about thermostats. Maybe Supco will, but I am done wasting my time with it. ... show more
Reviewed in the United States on February 3, 2023 by MusicLover
    • Un mes de uso
Despues de un mes de uso se queda dormido llega a la emperatura que tiene que necender,, y no activa, si yo presiono cualquier de las teclas funciona inmediatamente lo tengo seteadoa 68 y llega a 66 y no enciende,, presiono una tecla cualquiera y enciende inmediatamente,,
Reviewed in the United States on November 21, 2024 by Eber Neftali Granados machado BS0452

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