clintbailey
Jan 1, 2018, 12:13 PM
On my furnace I'm getting 3 red lights, indicating pressure switch stuck open. How do I clear this please?
talaniman
Jan 1, 2018, 01:24 PM
Without such info as the make or model, this video series provides some helpful information.
https://www.youtube.com/watch?v=NLfb1Il_YB0
ma0641
Jan 1, 2018, 06:09 PM
You don't clear, you determine if the switch is dirty and not allowing closure or is bad. There are many different switches. Google " testing a... inducer pressure switch.(put your brand in the... )