De Dietrich Sticking Relay or Intermittent Electrical Connection

Ice maker will not start cycle unless the unit is tapped or shaken

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Worn relay contacts on main PCB, Loose wiring harness connector, Oxidized sensor contacts, Failing start capacitor (if used)

Safety first: Unplug the unit before accessing the control board or wiring.

Steps:

Inspect connectors: Reseat all major harness connectors on the main control board and at motors/pumps.
Check for corrosion: Look for green or white corrosion on terminals and clean gently if found.
Examine relays: On the PCB, inspect relays for discoloration or heat damage. If tapping the board causes the unit to start, the relay is likely failing and the board should be replaced.

Hard 4/5

Main Control Board

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