Fan Blower Control ICM271
by ICM
Digital product summary information
Manufacturer: ICMDigital camera reviews of Fan Blower Control ICM271
Digital camera Review: Good Fan Control board
Summary: 5 Stars
Recently purchased the ICM172 board to fix my problem with my air/heat exchange for airconditing /furnance unit. Heater fan would not come on with the heat. Fan would turn on if I manually flip the switch from auto to fan on the thermostat. Board was good, but it didn't fix my problem. After talking with ICM technicians to verify that the board was good for my unit. They told me to jumper R to W temporarily. After 40 seconds the fan kicked in. This indicates the timing circuit works and the relay works. Problem was with the 60Hz sine wave becoming distorted coming from the therostat. Removed jumper, installed a new therostat and it fixed the problem. Still very happy with getting ICM271 board, I'm keeping it for backup to this original board in my air handler.
Cameras and Photo