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Testing the Thermal/Fire Safety Switch

Attic Breeze Troubleshooting Guide

Need help with your Attic Breeze solar attic fan? This guide walks you through common repairs, part replacements, and troubleshooting steps.

Changing Out the Fan Blade

Tools needed: 1/8" Allen Key

  1. Locate the thermal and fire safety wiring harness at the base of the fan.

  2. Disconnect the thermal/fire safety connector.

  3. Loosen the 1/8" Allen Key screw on the fan shaft.

  4. Pull off the fan blade.

  5. Place the new blade and tighten the screw.

  6. Reconnect the harness and ensure no obstructions.

Changing Out the Solar Panel

Tools needed: Phillips Head Screwdriver, 7/16" Deep Well Socket, Ratchet

From the Attic:

  1. Disconnect the thermal/fire safety harness.

From the Roof:
2. Loosen the 7/16" nuts on the solar panel bracket.
3. Disconnect the wiring harness.
4. Remove the old panel, replace with the new one, and tighten bolts.

Changing Out the Thermal/Fire Safety Switch

Tools needed: None

  1. Locate the thermal/fire safety switch combo.

  2. Disconnect the old switch.

  3. Replace with a new switch from Attic Breeze.

  4. Ensure connectors have no silver showing.

Fan Is Not Functioning – Troubleshooting Steps

Before starting, make sure:

  • Attic temperature is above 80°F.

  • Sunlight is hitting the solar panel.

Steps:

  1. Check harness connections in the attic.

  2. Check solar panel placement on the roof.

  3. Ensure the wiring harness is connected properly.

  4. Verify fan operation.

If the fan is still not working, check specific parts: motor, thermal switch, or solar panel.

Motor Replacement – Exterior

  1. Disconnect the solar panel and cover/unplug it.

  2. Remove bolts as per the diagram.

  3. Disconnect and replace the motor, then reconnect wires.

  4. Replace the fan blade and reassemble the unit.

  5. Restore the solar panel and test operation.

Motor Replacement – Interior

Tools needed: 1/8" Allen Key, 7/16" Deep Well Socket, Ratchet

Video

  1. Disconnect the thermal/fire safety harness.

  2. Remove the fan blade.

  3. Disconnect wires and loosen the motor strap.

  4. Replace the motor and secure with the strap.

  5. Reinstall the fan blade and reconnect the harness.

 

Testing the Fan Motor

Tools needed: Allen Key, Socket, Ratchet, 9V Battery, Wire

  1. Disconnect the harness and remove the fan blade.

  2. Disconnect motor wires.

  3. Connect wires to a 9V battery:

    • Spins = good

    • No spin = replace motor

  4. Reassemble the fan after testing.

Testing the Breeze Mate Controller

  1. Locate the Breeze Mate controller and press power.

  2. Check and replace batteries if needed.

  3. Verify red indicator lights on the receiver box.

  4. Test the fan using the numbered dial.

  5. Check wiring harness connections.

Testing the Fan Blade

Tools needed: 1/8" Allen Key

  1. Disconnect the harness and inspect the blade.

  2. Check alignment and flatness with the motor shaft.

  3. Adjust the blade and tighten the screw.

  4. Ensure the fan rotates smoothly without vibration.

Testing the Solar Panel

Tools needed: Multimeter, Screwdrivers, Socket, Ratchet

  1. Disconnect the harness in the attic.

  2. On the roof, disconnect the panel wiring harness.

  3. Test voltage with a multimeter (normal range: 18–20V).

  4. If voltage is incorrect, check the wiring box and connections.

  5. Reconnect and secure the solar panel.