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Manitowoc Indigo Shut Down Issues
Hi All – Have a Manitowoc ID-1402 (air cooled, R404a), laid up for winter and recently cleaned/put back into service, has me scratching my head. On startup, machine made around 10 drops of ice in normal time (~11 mins/drop), then powered off mid cycle, as in lost all power to control board, entire machine goes dark at once. After a few minutes, cycled power at the breaker and machine powered back up, restarted as normal, but continues to power off mid-cycle every time. Condenser has been cleaned and fan cycles normally, error log on machine only shows the power loss events each time they occur, no other errors.
First thought was HPCO or similar, but would expect the control board to log that error instead of dump all power to the machine. Have verified power to the unit is not dropping out, have replaced breaker out of caution (weak contact, etc.), and verified no internal shorts in the unit. Ran separate temporary power directly to the service panel to rule out premise wiring, same behavior. Compressor amps when running are normal, evap is cooling as expected. Machine cycles into freeze, starts water flow and gets to about 1/16″ of ice starting to form on grids, then goes dark.
Wanted to bounce it off the experts here to see if there is anything obvious I may be missing with the power loss symptoms, or any areas to focus on. The service manual troubleshooting guide covers a bunch of scenarios, but doesn’t mention complete power loss like this with no codes logged. Thanks!
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