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

3.9 out of 5 stars 18 customer reviews
| 9 answered questions

List Price: $33.80
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Specifications for this item
Brand Name Supco
Part Number 43054
UPC 049694430540
Additional Features 2 - AA batteries
EAN 0049694430540
Import Designation Made in USA or Imported
Item Weight 13.6 ounces
Number of Items 1
UNSPSC Code 41112200

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Frequently Bought Together

  • Supco 43054 Electronic Digital Wall Thermostats with Blue Back Light, 45 to 95 Degree F, 20-30 VAC
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Total price: $33.28
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Product Features

  • Electronic digital accuracy
  • Large, easy to read LCD
  • Filter change indicator
  • No programming required
  • 3 year warranty

Product 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.

Product Details

  • Item Weight: 13.6 ounces
  • Shipping Weight: 13.6 ounces (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item can be shipped to select countries outside of the U.S. Learn More
  • ASIN: B004OM5R9O
  • Item model number: 43054
  • Average Customer Review: 3.9 out of 5 stars  See all reviews (18 customer reviews)
  • Amazon Best Sellers Rank: #3,976 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Verified Purchase
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.
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Verified Purchase
Simple and easy to use, easy to install, can't go wrong. I know, I know, everyone else is using smart thermostats. Well I work from home and an always home, so I don't need a smart one, this one works and works well.
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Verified Purchase
I purchased this thermostat to replace an old analog thermostat in my RV. I noticed while the trailer was stored for the winter in my driveway that the furnace was running with the thermostat switch set to "off" . It was in the 30's outside and in the trailer. I had to pulled the batteries and remove the thermostat from the wall mount base to shut off the furnace. After looking back at Amazon ad for this thermostat, I NOW realize it states 45 to 95 degree thermostat... I'm assuming this is why this happened. Otherwise I would've given 5 stars. So I'm either going to look for another back lit, well balanced, accurate non programmable thermostat, or just deal with unplugging this thermostat from the wall went the RV is not in use...
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Verified Purchase
Excellent thermostat. I bought two to these to replace the exact same thermostats. The old ones lasted fifteen years and worked just fine, except the up/down buttons had worn out. I just popped the old ones off the base plates and snapped on the new ones. I saved $200 in installation fees that the HVAC company had quoted to me.
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Verified Purchase
Unbelievably fast delivery. Used to replace the unit I had for 4 years. Unit snapped on and off and worked great.
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Verified Purchase
It needed plus or minus 2 degrees for air conditioning to cycle on and off I tried to contact company to make them aware of my problem and they are nowhere to be found
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Verified Purchase
This item does not work very well. When I press the "up" or "down " buttons, my unit stops for a split second.
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Verified Purchase
This unit was a replacement for an older thermostat that had gone bad over the years due to high humidity and corrosion built up on the wire terminal. So far after 6 months it works just fine.
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