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Error code reference

Prodigy Ice Maker Error Code H

Harvest cycle is in progress (steady) or manual harvest is in progress (flashing).

Prodigy codesProdigy ice maker codes

Harvest cycle is in progress (steady) or manual harvest is in progress (flashing).

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What H means on a Prodigy ice maker

The H indicator on a Prodigy ice maker is a status code rather than a fault code. When displayed as a steady light, it indicates the unit is actively running a harvest cycle, which is the phase where the ice maker releases formed ice cubes from the evaporator plate into the storage bin. This is a normal, recurring part of ice production and does not indicate a malfunction on its own.

When the H indicator flashes, it signals that a manual harvest cycle has been triggered, either by a technician or through a control board input. Manual harvest mode is commonly initiated during diagnostics or servicing to verify that the harvest mechanism, including the harvest assist components and water system, are functioning correctly. The flashing state distinguishes operator-initiated cycles from the automatic production sequence.

If the H indicator remains on for an extended period without the unit progressing through a full cycle and returning to the freeze phase, this could point to a stalled harvest condition. Potential causes include a malfunctioning harvest thermostat, a problem with the hot gas valve that warms the evaporator during harvest, inadequate refrigerant charge, or a control board issue preventing proper cycle sequencing. In these cases, the H indicator transitions from a normal status display into a diagnostic signal worth investigating further.

Source: manufacturer service documentation.

Common causes of H

  1. 01

    Normal automatic harvest cycle in progress

    Wiring / connection

    The steady H indicator most commonly appears during routine ice production. The unit is releasing formed ice into the bin and will return to the freeze phase automatically once the cycle completes.

  2. 02

    Manual harvest cycle initiated by technician

    Wiring / connection

    A flashing H indicates a manual harvest was triggered through the control panel or service procedure. This is expected during diagnostics and will end once the cycle completes.

  3. 03

    Stalled harvest due to faulty hot gas valve

    Part replacement

    If the H indicator stays on far longer than a normal harvest cycle, the hot gas valve may not be opening properly to warm the evaporator and release the ice slab. This requires testing the valve for proper operation and continuity.

  4. 04

    Harvest thermostat malfunction

    Part replacement

    The harvest thermostat signals when the evaporator has warmed sufficiently to end the harvest phase. A failed thermostat can cause the unit to remain stuck in harvest mode indefinitely.

  5. 05

    Control board cycle sequencing issue

    Part replacement

    A malfunctioning control board may fail to advance the unit out of the harvest phase into the next freeze cycle. This is typically suspected after the hot gas valve and thermostat have been ruled out as causes.

See the test procedure for each cause

Frequently asked questions about H

What does H mean on a Prodigy ice_maker?
The H indicator on a Prodigy ice maker signals that a harvest cycle is in progress. A steady H means the automatic harvest cycle is running normally as part of regular ice production. A flashing H means a manual harvest cycle has been triggered, typically during a service or diagnostic procedure.
Do I need to fix anything when I see the H code on my Prodigy ice maker?
In most cases, no action is required. The H indicator is a status display, not a fault alarm, and should clear on its own once the harvest cycle finishes. However, if the indicator stays on for an unusually long time without the unit producing ice, it may point to a component issue such as a faulty hot gas valve or harvest thermostat that should be inspected by a technician.
Is it safe to keep using my Prodigy ice maker when the H code is showing?
Yes, a steady H indicator during normal operation is safe and expected. The unit is simply going through its ice release process. If the H indicator is flashing due to a manual harvest activation, the machine is also operating safely. Only if the unit appears stuck in harvest mode for an extended period should you consider powering it down and calling for service.
Will resetting my Prodigy ice maker clear the H indicator?
A power reset is not necessary to clear a normal H indicator, as it will clear on its own once the harvest cycle ends. If a manual harvest was triggered and you want to cancel it, following the appropriate control panel procedure for your model is the correct approach. If the unit is genuinely stuck in harvest mode, a reset may temporarily clear the display, but the underlying component issue will need to be diagnosed and repaired.
How much does it cost to repair a Prodigy ice maker that is stuck in harvest mode?
Repair costs depend on the failed component. A harvest thermostat replacement is typically a lower-cost repair, generally in the range of $75 to $200 including parts and labor. A hot gas valve replacement tends to cost more, often in the $150 to $400 range. Control board replacement is usually the most expensive option, potentially ranging from $300 to $600 or more depending on parts availability and labor rates in your area.

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