Lighting
Blizzard Lighting Blockhead troubleshooting
The Blizzard Lighting Blockhead problems live-event techs bring to Ask Roadie most (also called 123468, Blizzard Blockhead, Block Head, BlockHead RGBW). Pick your symptom, or describe your own in plain words, and get the likeliest fix first, with the manual page when there is one.
Common Blockhead errors & problems
What techs run into most, and what's usually behind it. The step-by-step fix for your exact unit is in Ask Roadie.
- Step-by-step fixGet the fix →
Blockhead beam too narrow for wash
Likely cause: The optics are designed for tight parallel beams.
- Step-by-step fixGet the fix →
Blockhead keeps spinning / infinite rotation won't stop
Likely cause: Continuous rotation is controlled separately from position; a stray value sends it spinning.
- Step-by-step fixGet the fix →
Blockhead overheating / shutting down in hot venue
Likely cause: LED output and driver protection depend on airflow; above rated ambient the fixture can dim or shut down.
- Step-by-step fixGet the fix →
Blockhead pixels / letters not working - wrong DMX mode
Likely cause: Each mode maps attributes differently; pixel-mapping software or console pixel layouts only line up in 116ch mode.
- Step-by-step fixGet the fix →
how many Blockheads on one circuit
Likely cause: Rated current comes from Blizzard's spec; continuous loads should stay below the breaker rating.
- Step-by-step fixGet the fix →
pixel map Blockhead with MADRIX / Art-Net
Likely cause: The fixture only speaks DMX-512 on 3-pin XLR; Art-Net or a pixel-mapping server needs a node to convert to DMX.
- Step-by-step fixGet the fix →
rigging a Blockhead on truss
Likely cause: Weight and dynamic movement load the clamps; a secondary safety prevents drops.
Not on the list? Describe it your way, or paste the error code off the display. Ask Roadie works the problem with you until it's fixed or you have a clear next move.
How Ask Roadie helps with the Blockhead
- 1. Pick the Blizzard Lighting Blockhead. It's already in the list.
- 2. Describe what you're seeing. In your own words, or the error code off the screen.
- 3. Get the likeliest fix first. Steps in order, the manual page when there is one, and a note when other techs have confirmed it.
- 4. Still broken? Tap 👎 and it keeps going from where you left off.