Controller Board - Hoshizaki DIM-30DE-1 Service Manual

2. CONTROLLER BOARD

If receiving a service call, ask the user to turn off the power to the ice
dispenser and turn it on again, while watching the ice dispenser. This will
reset the controller, and in some cases normal operation will resume.
1. Check that the ice dispenser has been earthed properly. If not, the
controller board will not work properly.
2. Do not change wiring and connections, or the controller board will not
work properly.
3. Do not touch the reverse side of the controller board and tiny electronic
devices on it.
4. Do not repair the electronic devices and parts on the controller board in
the field. Replace the whole board assembly when it fails.
5. To get static free, always touch the metal part of the ice dispenser before
servicing. Electrostatic discharge will cause severe damage to the
controller board.
6. The signal ground wire must be connected to the shield plate when
replacing the controller board after service.
7. The controller board is fragile. Handle with care.
* Do not drop the board on the floor.
* Make sure that the board is placed correctly into the guides in the
control box. Mis-alignment could cause breakage when replacing the
control box cover.
* Handle the board by the edges only. Do not touch the electric parts and
devices except the transformer.
IMPORTANT
CAUTION
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