Question about Fahrenheat Electric Hydronic Baseboard Heater, 240 Volt

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Need wiring help with Fahrenheat PLF754 240V baseboard heater with Fahrenheat PT2DS double-pole thermostat

Open kimono - I know enough about electrical wiring to be dangerous. I have a Fahrenheat PLF754 240V baseboard heater and a Fahrenheat PT2DS (also known as Marley T2) double-pole integrated thermostat that and the heater isn't working. My power supply is a single cable with white, black, and red wires. I traced the supply line back to the circuit panel and found that the red and black wires terminate on a DP-40A breaker. The white wire is grounded. The heater has 2 red wires exiting a center tube at the end of the heater where the thermostat goes and 2 black wires exiting a small cut-out near the top of the same end. There's also a green ground wire from the heater. The thermostat has 2 red wires on the left top and bottom, 2 black wires on the right top and bottom, and a green ground wire. An electrician friend of mine (since left town) installed the wiring, heater, and thermostat for me. It worked fine for about 1 year and then stopped working. I'm trying to troubleshoot the problem but don't have any documentation on how this thing should be wired or how I might isolate the problem to the thermostat, heater, or both. I did verify that the power supply is good. Everything is currently wired as follows: Black power supply to black thermostat (top) Red power supply to black thermostat (bottom) One black heater to red thermostat (top) Other black heater to one red heater Other red heater to red thermostat (bottom) Green heater to green thermostat White power supply not connected - just wire-nutted Can anyone confirm this is the correct wiring for this configuration and, if not, what it should be? If this is correct, how best to isolate the problem? Thanks!

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Posted on Nov 06, 2008

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SOURCE: Im hooking up a base board heater for the first

Hello there
It sound alright but You should draw out a wiring diagram on paper first before you tackle the job that way you know you're doing it right.

Good luck Dickson

Posted on Nov 04, 2010

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If I have your information right you have a black wire and a white wire marked red coming to the heater with 240 volts between them. You have a double pole unit mounted thermostat with a red and a black wire. Most double pole thermostats have two red and two black wires on them so I am not sure if you have a double or a single pole thermostat.There are also two wires going to the baseboard heater. One is connected to the element the other to a high limit switch which is then connected to the other end of the element. If the thermostat is a double pole the two red (or load) wires should connect one to each of the baseboard wires. The two black (line) wires should connect one each to the two incoming power leads. If it is a single pole thermostat the one red wire should connect to one of the baseboard wires the black should connect to one of the incoming power wires the remaining baseboard and power wires should then be connected together. Hope this helps

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Hello there
It sound alright but You should draw out a wiring diagram on paper first before you tackle the job that way you know you're doing it right.

Good luck Dickson

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