DMD4 Optical Type Portable Desiccant Dryer/Loader  
Issues > Check/Troubleshooting
Blower does not rotate.
  1. Controller light indicator does not light up.
  2. Error code "E2" or "E3" (Blower Overload) is displayed on the controller.
  3. Error code "E1" (Reverse Phase) is displayed on controller.

1. Controller light indicator does not light up.
Primary power may not be on, or STANDBY switch may not be pressed.

  1. Turn primary power and power breaker (in front of controller) on and press STANDBY switch.
If problem persists
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2. Error code "E2" or "E3" (Blower Overload) is displayed on the controller.
Will occur when an overcurrent runs to the blowers and the electromagnetic switch thermal relay trips.
See " E2""E3."
(Note) Operation will automatically stop.

  1. Check to see if a line hooked up with coil section disconnected or hook-up at terminal section is loose or not
If problem persists
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3. Error code "E1" (Reverse Phase) is displayed on controller.
Before inspecting, stop operation of unit. Then tighten connections to the terminals securely with a screw to prevent looseness.
  1. Among the three power cords, change R-phase (red) and T-phase (black) hook-ups.
If problem persists
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