Thermador downdraft to an external fan
#1
05-28-14, 06:33 AM
Join Date: May 2014
Location: USA
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Thermador downdraft to an external fan
Hi,
I have a new Thermador downdraft with a 5 wire wiring harness. The wires are for high, medium, low, neutral, and ground. (I believe!) The external fan has only three wires hot, neutral, and ground. What do I need in between these two sets of wires to have my Thermador downdraft control my external fan?
Thanks for any insight!
I have a new Thermador downdraft with a 5 wire wiring harness. The wires are for high, medium, low, neutral, and ground. (I believe!) The external fan has only three wires hot, neutral, and ground. What do I need in between these two sets of wires to have my Thermador downdraft control my external fan?
Thanks for any insight!
#2
05-28-14, 08:40 AM
Group Moderator
Use the high speed wire, neutral and ground. Cap off medium and low speed wires.
Your fan is only a single speed model.
Your fan is only a single speed model.
#3
05-28-14, 11:29 AM
Join Date: May 2014
Location: USA
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Well we replaced a Thermador cooktop and downdraft that was 20 years old. I had the ability to select a fan speed of high, medium, or low with that setup. The external fan is the same one, so I expected to be able to continue to run it at high medium or low. Will that still be possible?
#4
05-28-14, 11:33 AM
Group Moderator
If there were only three wires with your old cooktop then there was an electronic speed control built into the unit.
Your new unit isn't going to supply three speeds without a three speed motor.
Your new unit isn't going to supply three speeds without a three speed motor.
