---
title: Explain the 3 black wires and 1 white wire coming out of the Model APG gable-mount power vent thermostat.
description: Here is information about the wiring for the APG Gable-Mount Fan.
---

[Skip to content](https://help.gibraltarbuildingproducts.com/en/knowledge/customer-says-he-has-3-black-wires-and-1-white-wire-coming-out-of-the-model-apg-gable-mount-power-vent-thermostat#main-content)

English

Show submenu for translations

![GBAD Full Color.png](https://blog.stealthbond.com/hubfs/GBAD%20Full%20Color.png)

Open main navigation

Close main navigation

- English
  
  Show submenu for translations
- Go to www.gibraltarbuildingproducts.com

 Go to www.gibraltarbuildingproducts.com

 Hello. How can we help you?

- There are no suggestions because the search field is empty.

1. [Help Center](https://help.gibraltarbuildingproducts.com/en/knowledge?hsLang=en)
2. [Ventilation](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en)
3. [Power Fans](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#power-fans)

# Explain the 3 black wires and 1 white wire coming out of the Model APG gable-mount power vent thermostat.

## Here is information about the wiring for the APG Gable-Mount Fan.

There are a total of 3 black wires on the APG powered attic ventilator product. The first black wire is coming from the motor into the thermostat box. The second wire is soldered to one side of the thermostat control. These first two black wires are connected together via a wire nut. The third black wire is soldered to the opposite side of the thermostat and has the insulation stripped from the end when it leaves the factory. This third wire should be connected to the hot wire coming from the service panel. The white wire from the motor connects directly to the neutral or common wire from the service panel. Finally, a ground wire should be attached to the green screw with the cup washer on the bottom surface inside the thermostat.

- [Metal Roofing](https://help.gibraltarbuildingproducts.com/en/knowledge/metal-roofing?hsLang=en#main-content)

    - [Metal Roofing](https://help.gibraltarbuildingproducts.com/en/knowledge/metal-roofing?hsLang=en#metal-roofing)
    - [Oil Canning](https://help.gibraltarbuildingproducts.com/en/knowledge/metal-roofing?hsLang=en#oil-canning)
    - [SMRIB Profile](https://help.gibraltarbuildingproducts.com/en/knowledge/metal-roofing?hsLang=en#smrib-profile)
    - [5V Crimp Profile](https://help.gibraltarbuildingproducts.com/en/knowledge/metal-roofing?hsLang=en#5v-crimp-profile)
    - [Job Packs](https://help.gibraltarbuildingproducts.com/en/knowledge/metal-roofing?hsLang=en#job-packs)
    - [Roofing Accessories](https://help.gibraltarbuildingproducts.com/en/knowledge/metal-roofing?hsLang=en#roofing-accessories)
- [Rainware & Gutter](https://help.gibraltarbuildingproducts.com/en/knowledge/rainware-gutter?hsLang=en#main-content)

    - [Gutters](https://help.gibraltarbuildingproducts.com/en/knowledge/rainware-gutter?hsLang=en#gutters)
- [Soffit](https://help.gibraltarbuildingproducts.com/en/knowledge/soffit?hsLang=en)
- [Trims & Flashing](https://help.gibraltarbuildingproducts.com/en/knowledge/trims-flashing?hsLang=en#main-content)

    - [Other](https://help.gibraltarbuildingproducts.com/en/knowledge/trims-flashing?hsLang=en#other)
- [Ventilation](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#main-content)

    - [Ventilation](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#ventilation)
    - [Intake](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#intake)
    - [Edge Vent](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#edge-vent)
    - [Whole House Fan](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#whole-house-fan)
    - [Ridge Vent](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#ridge-vent)
    - [Power Fans](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#power-fans)
    - [Ice Dams](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#ice-dams)
    - [Internal Weather Filter](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#internal-weather-filter)
    - [External Wind Baffle](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#external-wind-baffle)
    - [Exhaust Vent](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#exhaust-vent)
    - [Solar Power Fans](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#solar-power-fans)
    - [Roof Louvers](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#roof-louvers)
    - [Undereave Vents](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#undereave-vents)
    - [Mini Louvers](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#mini-louvers)
    - [Bath/Dryer Vent](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#bath-dryer-vent)
    - [Continuous Soffit Vents](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#continuous-soffit-vents)
    - [Wind Turbines](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#wind-turbines)
    - [Foundation Vents](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#foundation-vents)
    - [Skylight Tubes](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#skylight-tubes)
    - [Shingles](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#shingles)
    - [Underlayment](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#underlayment)
    - [Vented Drip Edge](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#vented-drip-edge)
    - [Wall Louvers](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#wall-louvers)
    - [Kwikmesh](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#kwikmesh)
    - [Flue Guard](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#flue-guard)
    - [Off Ridge Vent](https://help.gibraltarbuildingproducts.com/en/knowledge/ventilation?hsLang=en#off-ridge-vent)
- [Material](https://help.gibraltarbuildingproducts.com/en/knowledge/material?hsLang=en#main-content)

    - [Gutter Protection](https://help.gibraltarbuildingproducts.com/en/knowledge/material?hsLang=en#gutter-protection)
    - [Customer Service](https://help.gibraltarbuildingproducts.com/en/knowledge/material?hsLang=en#customer-service)
    - [Warnings](https://help.gibraltarbuildingproducts.com/en/knowledge/material?hsLang=en#warnings)
    - [Material Type](https://help.gibraltarbuildingproducts.com/en/knowledge/material?hsLang=en#material-type)
- [Fasteners](https://help.gibraltarbuildingproducts.com/en/knowledge/fasteners?hsLang=en)
- [Uncategorized](https://help.gibraltarbuildingproducts.com/en/knowledge/uncategorized?hsLang=en)
- [Trims and Flashings](https://help.gibraltarbuildingproducts.com/en/knowledge/trims-and-flashings?hsLang=en#main-content)

    - [Trims and Flashings](https://help.gibraltarbuildingproducts.com/en/knowledge/trims-and-flashings?hsLang=en#trims-and-flashings)
    - [Customer Service](https://help.gibraltarbuildingproducts.com/en/knowledge/trims-and-flashings?hsLang=en#customer-service)
- [Other](https://help.gibraltarbuildingproducts.com/en/knowledge/other?hsLang=en#main-content)

    - [Other](https://help.gibraltarbuildingproducts.com/en/knowledge/other?hsLang=en#other)
    - [Miscellaneous](https://help.gibraltarbuildingproducts.com/en/knowledge/other?hsLang=en#miscellaneous)
- [Flashing](https://help.gibraltarbuildingproducts.com/en/knowledge/flashing?hsLang=en#main-content)

    - [Flashing](https://help.gibraltarbuildingproducts.com/en/knowledge/flashing?hsLang=en#flashing)
- [Siding](https://help.gibraltarbuildingproducts.com/en/knowledge/siding?hsLang=en#main-content)

    - [Siding](https://help.gibraltarbuildingproducts.com/en/knowledge/siding?hsLang=en#siding)
- [Soffit & Fascia](https://help.gibraltarbuildingproducts.com/en/knowledge/soffit-fascia?hsLang=en#main-content)

    - [Soffit & Fascia](https://help.gibraltarbuildingproducts.com/en/knowledge/soffit-fascia?hsLang=en#soffit-fascia)
- [Pipe Flashing](https://help.gibraltarbuildingproducts.com/en/knowledge/pipe-flashing?hsLang=en#main-content)

    - [Pipe Flashing](https://help.gibraltarbuildingproducts.com/en/knowledge/pipe-flashing?hsLang=en#pipe-flashing)

www.gibraltarbuildingproducts.com Help Center

Copyright © 2026, Gibraltar Building Accessories Division