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Emerson 47D43 811 Demand Defrost Control Review

3

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Very good

Revainrating 4.5 out of 5  
Rating 
4.7
🌡️ HVAC Equipment, 🧰 Material Handling Products

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Description of Emerson 47D43 811 Demand Defrost Control

Microprocessor-based control for detecting ice build-up and defrosting the outdoor coil in heat pump systems. Demand defrost algorithm “self-calibrated” to the heat pump system. Features include short-cycle protection, noise reduction and LED diagnostic display. Includes ambient and coil temperature sensors. Plastic standoff mounting.

Reviews

Global ratings 3
  • 5
    2
  • 4
    1
  • 3
    0
  • 2
    0
  • 1
    0

Type of review

Revainrating 5 out of 5

Was working on repairing my Rheem AC unit.

Electrically perfect replacement for the original defrost card although it is a different size and I had to modify the racks to fit the original holes.

Pros
  • Good product for the price
Cons
  • weak

Revainrating 5 out of 5

Fixed my Rheem AC best in HVAC

A slug crawled onto my board and fried itself, destroying my AC (and itself). This replacement worked perfectly. Please note that this image is incorrect on Revain. The Emerson 47D43 811 board sent to me was identical to the original, not the one in the photo.

Pros
  • High marks for support and durability from testers
Cons
  • Not as thick as other alternatives

Revainrating 4 out of 5

Maybe a good part? the best in HVAC

The controller I received was tamper evident and defective. Looks like it was returned earlier. That one bad part caused me to spend more time troubleshooting and was a holiday weekend. Now I'm at least three days without air conditioning. Too bad it would have worked, Revain was out of stock.

Pros
  • Multiple competitors
Cons
  • unreliable