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The Simple Guide: Wiring Your Fan

This is the "bare bones" version. No extra talk—just the steps.

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1. Prep the Fan

  • Slide a piece of heat shrink onto your long 6mm wire.

  • Crimp the fan’s wires to your long 6mm wire using butt splices.

  • Shrink the tubing over the crimps with a lighter.

  • This joint is now permanent and waterproof.

 

2. Run the Wire

  • Run the wire from the roof hole to your 6-Way Fuse Bus.

  • Tape the wire every 30cm so it doesn't rattle against the van walls.

  • Tip: Run a second "spare" wire at the same time and just leave it tucked in the ceiling for later.

 

3. Connect to the Fuse Bus

  • Red Wire (Positive): Crimp a ring terminal on the end. Screw it onto one of the 6 slots.

  • Black Wire (Negative): Crimp a ring terminal on the end. Screw it onto the negative "common" bar on the block.

  • Make sure the main "Master" cables are connected from the battery to the Bus Bar.

 

4. Fuse and Power

  • Plug a 10A Fuse into the slot you used.

  • Check the LED: * Light OFF: All good. Turn the fan on!

    • Light ON: The fuse is blown. Check for a pinched wire.

 

The "Must-Do" Shopping List

  1. 6mm Twin-Core Auto Cable (Red/Black).

  2. 6-Way LED Fuse Bus.

  3. 10A Blade Fuses.

  4. Blue Crimp Terminals (Ring and Butt Splice).

  5. Heat Shrink (to cover the crimps).

Done. Your fan is now safe, fused, and ready for the WA heat.

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Simple Danger: Why Size Matters

Think of a wire like a water pipe.

If you try to force a fire hydrant's worth of water through a tiny garden hose, the pressure will burst the hose. In electricity, that "burst" is heat.

 

1. The Fire Risk (The "Toaster" Effect)

  • Too Thin: Electricity struggles to move through thin wire. This creates friction, and friction creates heat.

  • The Melt: The wire gets so hot it melts its own plastic coating.

  • The Fire: Once the plastic melts, the bare wire touches your van's metal body or wooden panels. Sparks fly, and the van catches fire.

 

2. The Fuse Trap

  • The Rule: The fuse must be the weakest part of the circuit.

  • The Danger: If your wire is thin but your fuse is "strong" (e.g., a 20A fuse on a wire that can only handle 10A), the wire will melt and burn before the fuse even blows. The fuse won't save you if the wire is the wrong size.

 

3. Damaging Your Gear

  • Voltage Drop: Thin wires "lose" power over long distances.

  • The Result: Your battery might be full, but your fan only gets a "weak" flow of power. This makes the fan motor run hot and die early. It’s like trying to run a marathon while breathing through a straw.

 

The "Swan River" Safety Check

  • Use the 6mm Wire: It’s thick enough to stay cool even in a 40°C WA summer.

  • 10A Fuse: This is small enough to "pop" the moment anything goes wrong, protecting your thick wire perfectly.

  • No Loose Ends: A loose wire creates a "hot spot" that can melt even the thickest cable. Crimp it tight!

Summary: Big wire = Cool and Safe. Small wire = Hot and Dangerous.

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Not confident then call Swan River Vans.  We have seen the dangers of taking shortcuts

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