I just need the ICP tech support number.
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When the jumper is in the TEST position and Y is energized, the unit will cycle from heating (10 seconds) to defrost (2 seconds) to heating (10 seconds) to defrost (2 seconds) for a maximum of 8 times. If the jumper is left in the TEST position, the control will ignore the call for TEST and default to a 90 minute defrost cycle.Phf030k000e
Customer says sometimes at night the blower will continue to blow but the air will be cold. The heat works fine. I tried to test the defrost by jumping out the defrost sensor terminals and by jumping the test pins. It will go in and out of defrost a few times but will not stay in defrost during the test. I have tried removing the jumped test pin as soon as it goes into defrost. I have left the test pin jumped. I have pulled the jumper off the test pin 5-7 seconds after it being on there like suggested.
You should be able to get into the "Tech to Tech Chat - Residential" forum without 15 posts. It is only the "PRO" forums that require 15 posts and an application to join (and it is free).I meant before i can message or do tech to tech chat. I emailed you though .
Don't duplicate post. Just click on the small black triangle down at the bottom of your post, and ask the moderators to move your thread.My mistake. I will repost there.