I got the switch on the 24 volt control side, the thermostat wires. It is a 15 or 20 amp switch. Was using it to test before sinking a lot of money into it. I was told by the guy that gave it to me to wire a 2 wire thermostat into the red and white wires. It also has a couple more, gray and brown. Maybe I did something wrong using this just to test it.CottageFarm":xog3bhn6 said:No, the lack of duct wouldnt be an issue. Whats the rating on the single pole switch?
Picture of the switch would be helpful...
Pretty big wires for a thermostat. You sure you aren't bypassing a relay instead?tom4018":34dt0ydb said:I got the switch on the 24 volt control side, the thermostat wires. It is a 15 or 20 amp switch. Was using it to test before sinking a lot of money into it. I was told by the guy that gave it to me to wire a 2 wire thermostat into the red and white wires. It also has a couple more, gray and brown. Maybe I did something wrong using this just to test it.CottageFarm":34dt0ydb said:No, the lack of duct wouldnt be an issue. Whats the rating on the single pole switch?
Picture of the switch would be helpful...
greybeard":15261x6h said:Pretty big wires for a thermostat. You sure you aren't bypassing a relay instead?tom4018":15261x6h said:I got the switch on the 24 volt control side, the thermostat wires. It is a 15 or 20 amp switch. Was using it to test before sinking a lot of money into it. I was told by the guy that gave it to me to wire a 2 wire thermostat into the red and white wires. It also has a couple more, gray and brown. Maybe I did something wrong using this just to test it.CottageFarm":15261x6h said:No, the lack of duct wouldnt be an issue. Whats the rating on the single pole switch?
Picture of the switch would be helpful...
ddd75":22qirax3 said:what size heat strip? If its 15kw you'll need 2 breakers.
10kw and less it shouldn't blow a 60.
It comes on and runs a few minutes. Don't see anything that's looks like has been hot. Pretty sure I wired the 220 right.CottageFarm":33wcbowx said:White and red on the thermo wires are correct for turning it on.
So the Heat strips (2-or 3?) all come on? Does the fan run?
Assuming your incoming 220 wires are all connected correctly, my first thought might be a bad high limit switch on one of the elements tripping the breaker. Also verify all connections are tight and secure. Look for any scorched wires around the high limit and relays as well. Also may need to test the transformer for proper function
60 in the panel and the unit. Unit breaker is what trips.CottageFarm":7ao94sph said:What amperage is the circuit breaker in your service panel?
greybeard":qvaexu3f said:If anything, I would think the lack of a somewhat restrictive duct would cause it to pull fewer amps..not more.
I assume it's rated 240 volts due to the heater strips. 60A should be plenty good.
CottageFarm":okzre70b said:There are, unfortunately, several things that could be at fault. Need to eliminate one at a time.
1.Inspect all wiring carefully. Especially hot wires. Look for any nicks or anything that could be grounding out.
Verify all connections are tight and free of corrosion.
2.You didn't mention whether the fan comes on? I don't want to assume anything...
3.Try connecting a thermostat instead of the switch.
4.Its not common, but breakers do go bad, especially if they've been tripped many times.
5.Next step is testing or replacing parts. I would start with the transformer, limit switches, and contactors/sequencers in that order.
Lots of good videos on youtube to walk you thru different diagnostic tests for different parts.
The upside is this is likely an inexpensive, but frustrating process.