Intertek 3177973 Wiring Diagram
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Intertek 3177973 Wiring Diagram Now

If you cannot find the model number, you can reverse-engineer the logic by identifying the components inside the unit. Open the access panel (ensure power is OFF) and look for:

Identify if the unit uses two separate heating elements (H1 and H2 switched in parallel) or a single element with a diode for low heat. Measure continuity across each element. Intertek 3177973 Wiring Diagram

Intertek itself does not manufacture heaters. Instead, it certifies that the product meets safety standards like UL 1278 (for movable and wall-or ceiling-hung electric room heaters) or UL 2021 (for fixed and location-dedicated electric room heaters). Therefore, the wiring diagram you need is specific to the brand (e.g., Duraflame, Comfort Zone, Dr. Infrared) that licensed the Intertek certification. If you cannot find the model number, you

Find where the incoming power cord connects. Usually, a or solder joints are marked “L,” “N,” and “G.” Intertek itself does not manufacture heaters

Connect to the Blue light wire (or black with white stripe) from the fan.


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