Rheem Ruud Protech Defrost Control Board Kit (#47-102685-85)

The product was quality oem parts and were direct replacement. Parts shipped quickly, in shape and worked as they should.

Fast delivery. Correct item good packaging.

plug & play

A company was going to charge $850 to replace this part. I know businesses have to make money, but with this part and a 5 minute YouTube video, I saved hundreds of dollars.

This was a perfect replacement for our board. Our installer wanted over $500 to install a new board. We did it ourselves. No issues. Works great

This was the cheapest option I could find - possibly because the 47D43-111 is an old model, looks like the 47D43-811 replaces it but is identical other than with a larger relay for the fan control. Was even cheaper than just replacing the cheesy time-temp control that broke down on my elderly Rheem heat pump. I had to wire into a couple of the relays from that system, since I have a 240V reversing valve, and this one is configured for a low voltage valve coil, and I used the existing fan control contactor to prevent the full current going through the relay on this board, for better reliability. Seems to be working well, and the reduction in unnecessary defrost cycles has improved the heating, and probably the power consumption. Onboard diagnostic LEDs are useful for determining what is wrong, I don't have any pressure control switches so I just jumpered them out, so those codes should never appear. Sensor leads were plenty long enough to reach through to the condenser housing, I clipped the OCT sensor next to the old defrost thermostat, which I just left in place, and the OAT sensor is just inside the grill around the radiator.

Faulty motherboard, had to call AC technician and he confirmed it was faulty 11/12/24

Got a newer unit off someone, and patched it in. All it needed was this computer. Make sure you wire in the cooling and the heating correctly. You might end up with one dft wire left over, which is fine unless you live in colder climate, just pay a pro to plug it in. It'worth it cuz this is a good quality board. Both lights will flash at the same time if it's running; if they alternate then it's locked out for 5 minutes just wait and it'll reset