Workshop Status:
In Progress
EPA Certification:
Not Texted
Employment Status: Not Provided
Nasheem Wehner at HVAC Technical Academy – Central Florida
Nasheem Wehner video – Defrost Board
Nasheem Wehner video transcript – Defrost Board (Training Video Transcript)
00:00:02
Hi, my name is Nasheem from HVAC Technical Academy. Today I’ll be talking to you about the defrost board. The defrost board helps regulate and maintain the defrost cycle which can prevent ice buildup on the outdoor coil. So the defrost board is usually located on the outdoor condenser unit near the contactor in the access panel. What the defrost board does is it sends the unit into defrost cycle by reversing the flow of refrigerant, turning off the outdoor fan motor, and signaling to the indoor electric heat to
00:00:43
come on. It will put that heat on a timer and when that timer is shut off, the outdoor coil should be defrosted. Now, there’s a couple things that can cause a defrost board to go bad. It can be something as small as a surge in power, debris from being outside, moisture in the air, even insects and things of that nature. You can troubleshoot the defrost board by taking your screwdriver and going to the test pins to force the defrost cycle. When you do that, the defrost cycle should
00:01:15
start and you should hear it turn on. If that does not happen, then you have a faulty defrost board. Switching out a defrost board usually entails removing the entire board and also the sensor alongside with it. My name is Nasheem. Thank you for looking at my video about defrost boards.