Video & projection
Christie HS Series (DWU/DHD) troubleshooting
The Christie HS Series (DWU/DHD) problems live-event techs bring to Ask Roadie most (also called DHD, DWU, DWU1100-HS, HS Series). 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 HS Series (DWU/DHD) 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 →
Aligning irregular screens or blending multiple projectors
Likely cause: Warp/blend is handled in the projector's own geometry engine (Twist), with optional PC tools (Twist Pro/Mystique) for complex arrays — no external processor needed for standard jobs.
- Step-by-step fixGet the fix →
Amber/yellow flashing warning LED but projector keeps running
Likely cause: Warnings flag a degrading condition (airflow/thermal) that has not yet tripped a protective shutdown; resolving it early prevents the warning from escalating to a red-flashing over-temp shutdown.
- Step-by-step fixGet the fix →
Fan failure error / fan tachometer signal loss
Likely cause: Each fan feeds an RPM (tach) signal back to the controller; loss of that signal trips the fan-fail fault to protect the laser/DMD from overheating.
- Step-by-step fixGet the fix →
Fog filter warning / overheating after use in a haze/fog environment
Likely cause: Oil-laden haze saturates the media quickly; a saturated filter starves the cooling intake, so Christie specifies replacement per-use rather than cleaning.
- Step-by-step fixGet the fix →
How to update firmware and what the current version is
Likely cause: HS Series firmware is flashed over USB or LAN with a Christie utility; interrupting the ~8-minute write can brick the controller, so the frozen screen must be left alone until completion.
- Step-by-step fixGet the fix →
Lens zoom/focus/offset memory not recalling positions
Likely cause: Christie only fits position encoders/memory on its full Intelligent Lens System (ILS) lenses; the economy and UST lenses physically lack the feedback needed to recall zoom/focus.
- Step-by-step fixGet the fix →
No image / no signal from an HDBaseT or HDMI source
Likely cause: Most 'no image' calls are input-selection, cable-length, or timing issues rather than hardware failure; checking the selected input and HDBaseT distance/settings resolves the majority.
- Step-by-step fixGet the fix →
Power / circuit sizing and unexpected brownout trips
Likely cause: The laser engine pulls high steady current; sharing a circuit or feeding low voltage causes sag that trips the PSU, and ECO modes exist specifically to fit lower-amperage feeds.
- Step-by-step fixGet the fix →
Projector overheats and shuts down (red flashing / thermal trip)
Likely cause: The 20,000-lumen laser engine dissipates up to ~5,300 BTU/hr; any restriction in the cooling path lets the LD driver or DMD exceed limits and fire the protective thermal cutout.
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 HS Series (DWU/DHD)
- 1. Pick the Christie HS Series (DWU/DHD). 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.
Free trial
Get your HS Series (DWU/DHD) back up before doors.
Try it free. No card required.
Start free trial →