Completely ReWiring Electric Furnace - Removing Control Board

We're back on this one. If y'all don't remember, connections were loose on this board. I'm going to reuse everything I can but replace this board, put an inline fuse and probably put a 9340 right there. And in the process I hope to show you how I wire these out. These relays, these heat relays and see if they're DC or I think those are straight 24 volts AC. I'm gonna have to take a picture and make sure the dc coils and i'm not 100 certain that this board don't convert to dc i don't see one of those rectifiers on here so i'm just going to replace those with a sequencer what i'm going to salvage off this board is this transformer and um something i'm going to try to point out later is you need to identify which of those two power wires black or red is going to be common Now, normally common is the black one. One of them is going to be run, one of them is going to be common. Common is normally the black one, but because the way this is wired, black goes directly to the heat strips. I'm going to make red my common because your sequencer needs to break common. And I'll explain a little more about that in just a minute. All right, those are all the components I'm going to need. Two-pole sequencer, a blower relay, and a transformer. so we're doing completely doing away with that board i'm reusing the transformer new relay and sequencer now one of the reasons i say you got to identify which one is going to be common the leg that's broken to your heat strips needs to be common now if we really wanted to we could rewire this and make it black i'm just going to continue to use what we got so um you see that goes to my sequencer excuse goes to my heat strip and these other reds these right here are going to go on this side of the sequencer so this is going to be my common i've already predetermined that so when this makes it's going to send the 240 volts over to my normally closed excuse me right here normally closed which will power my blower motor so you need to identify which one's common on your blower motor and if you've already identified that it's going to be this wire right here it's pretty easy to wire so the other wire over here is going to be my run right here i have this wire going through the existing limit to the bottom of the sequencer so this is going to go to my white wire and i have power going in here power going in here and it breaks through here so like i said this is going to be common it's going to feed normally open and this is going to feed normally closed all right like i said this is one leg of my power so this goes to normally open what that means is is when this gets 24 volts these two close now put power to my blower motor when it is not energized this opens and this one closes so if you just have a call for heat electric heat this will close and send power to the blower motor while i've got this disconnected i haven't been able to test any of this all right that has continuity that has continuity that has continuity and that does so all those pieces are good what i'm doing here this right here is going to be one of my legs of power to my transformer and this one right here where's my other black wire there we go it was hard to see that's going to be one of my legs to my transformer and this one is going to also tee off and give one of my legs to my blower motor all right so this is going to be my other leg from my blower motor this is my common which is normally closed fed from the sequencer normally open fed from the power all the time on the sequencer so this one goes to the other leg of power and that's where i have this splitter right there that i'm going to hook on to the heat strip all right i know it looks like a jumbled up mess and this is going to be my green these are my common this is my red i have it fused and this orange goes through here to a white one so like i said this is common so it feeds common on the blower follow that back to here and it breaks this leg of power to my heat strips so basically you just got to decide which one is going to be run and which one is going to be common my other leg of my blower goes to the other power leg that goes on the heat strips so this has power all the time and this one gets power through the sequencer all right all we have to do is push this back in wire up the low voltage and we're done okay so that y'all see this is Finished I came up here loaded for bear but that's done now all we got to do is test everything all right i don't know how much of that video was useful but everything checked out heat strips work heat pump works it runs in heat and cool and it's probably much more dependable than it ever was and it did smoke up the house so um thanks for watching