Dimplex Garage Heater Trouble Shooting

Chris5303

New Member
Oct 26, 2020
3
Indianapolis
I am a home owner that has a lot of previous success with some pretty heavy DIY projects including running a 100 amp box in the garage and adding 7 outlets on 3 breakers, etc.

That said I just purchased a Dimplex euh12b84ct and have not been able to get it running.

I've run it about 7 feet from the box from a 60amp 2 pole breaker with 2 6 gauge wires running from the hot to heater and and 8 gauge ground.

The fan turns on when the thermostat is below the room temp but that is all I can get it to do.

Power is getting to Contactor but I am not sure where to go from there on the Trouble Shooting. I have a Multimeter but I'm a bit of a novice with it.

Thanks for any help you can offer.

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xman23

Minister of Fire
Oct 7, 2008
2,171
Lackawaxen PA
I assume that's a heater with multiple elements. The schematic is for 480 VAC or 600 VAC, 1 phase or 3 phase connection.
I think your power supply is 115 / 230 VAC. So If your comfortable rewiring it to run on 230, you can get it to work, kind of. You will have to remove the contactor coil transformer, and operate it from the line. The elements will run at half voltage, producing a lot less heat. I don't see anything with that.
 

Chris5303

New Member
Oct 26, 2020
3
Indianapolis
Thanks for the Reply!

So from what I'm reading and what I think you are getting at is this can be single phase but essentially still needs to be run off of 480VAC which is essentially just a modified 3 phase. A normal single phase 100 amp box wont work without rewiring the heater?
 

Chris5303

New Member
Oct 26, 2020
3
Indianapolis
I assume that's a heater with multiple elements. The schematic is for 480 VAC or 600 VAC, 1 phase or 3 phase connection.
I think your power supply is 115 / 230 VAC. So If your comfortable rewiring it to run on 230, you can get it to work, kind of. You will have to remove the contactor coil transformer, and operate it from the line. The elements will run at half voltage, producing a lot less heat. I don't see anything with that.
Thanks for the Reply!

So from what I'm reading and what I think you are getting at is this can be single phase but essentially still needs to be run off of 480VAC which is essentially just a modified 3 phase. A normal single phase 100 amp box wont work without rewiring the heater?
 

xman23

Minister of Fire
Oct 7, 2008
2,171
Lackawaxen PA
There's a number of wiring configurations to run it single phase, 3 phase, 480 or 600 volt. It's a little hard to read, but the options appear to be shown and explained.

The issue you have, is you have 230 single phase is not explained nor, will operate this heater. But with some redesigning you could get it to work at half the heat. Based on the spec's of 12 KW at 480 V you have plenty of power with 100 amps.
 

zrock

Minister of Fire
Dec 2, 2017
960
bc
May want to wire it up to your local code... if its not up to code your home owners insurance will have a hay day with you if something goes wrong