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Error code reference

Perlick Refrigerator Error Code EE

Controller data or memory failure.

Perlick codesPerlick refrigerator codes

Controller data or memory failure.

First step from the service manual

Controller must be reprogrammed (see page 13); if issue persists, replace controller.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What EE means on a Perlick refrigerator

The EE error code on a Perlick refrigerator indicates a controller data or memory failure. This fault originates in the electronic control board, which stores operating parameters, calibration data, and firmware instructions in onboard non-volatile memory. When the controller detects that this stored data has become corrupted, incomplete, or unreadable, it triggers the EE code to alert the technician that the board can no longer operate reliably from its current memory state.

Corruption of controller memory can occur for several reasons. Power surges or sudden voltage drops can interrupt a write cycle mid-process, leaving memory registers in an invalid state. Extended exposure to electrical noise on the supply line can also degrade stored values over time. In some cases, the memory corruption is not caused by an external event but by the gradual failure of the onboard memory chip itself, which is a component with a finite read/write cycle lifespan.

The prescribed first diagnostic step is to reprogram the controller, which reloads valid operating data into memory and clears the corrupted state. If reprogramming restores normal operation, no hardware replacement is needed. If the EE code returns after reprogramming, the memory hardware on the controller board has likely failed and the controller must be replaced. Attempting to operate the unit with an active EE fault is not advisable, as the controller may not regulate temperature correctly without reliable access to its stored parameters.

Source: manufacturer service documentation.

Common causes of EE

  1. 01

    Controller memory corruption

    Wiring / connection

    Onboard non-volatile memory that stores operating parameters can become corrupted due to a power interruption during a write cycle. This is the most common trigger for the EE code and is addressed first by reprogramming the controller.

  2. 02

    Power surge or voltage spike

    Wiring / connection

    A surge on the incoming power line can scramble stored data in the control board's memory registers. Inspect the power supply and consider whether a surge event occurred prior to the fault appearing.

  3. 03

    Failed onboard memory chip

    Part replacement

    The memory component on the controller board has a finite lifespan. If the EE code returns immediately after reprogramming, the memory chip itself has likely failed and the entire controller board must be replaced.

  4. 04

    Electrical noise on supply line

    Wiring / connection

    Persistent electrical noise or interference from other equipment on the same circuit can degrade memory values gradually over time. Evaluate the power environment and consider a dedicated circuit or power conditioning.

  5. 05

    Controller board hardware failure

    Part replacement

    Beyond isolated memory chip failure, broader component failure on the controller board can produce data and memory faults. If reprogramming fails to resolve the EE code, full board replacement is required.

See the test procedure for each cause

Frequently asked questions about EE

What does EE mean on a Perlick refrigerator?
The EE code on a Perlick refrigerator indicates a controller data or memory failure. It means the electronic control board has detected that its stored operating data is corrupted or unreadable. The unit cannot be expected to regulate temperature reliably while this fault is active. A technician needs to reprogram the controller or replace it to resolve the issue.
Can I fix the EE error code myself?
The first step is reprogramming the controller, which is a technical procedure described on page 13 of the Perlick service documentation and typically requires access to specific programming tools or procedures. This is generally a task for a qualified appliance technician rather than a DIY repair. If reprogramming clears the code, no parts are needed, but if the fault returns, the controller board must be replaced.
Will resetting the refrigerator clear the EE error code?
A simple power reset is unlikely to permanently clear the EE code because the fault is rooted in corrupted controller memory, not a temporary sensor glitch. The memory will still contain invalid data after power is restored. Proper resolution requires reprogramming the controller to reload valid data into memory, or replacing the board if reprogramming does not hold.
Is it safe to keep using my Perlick refrigerator while the EE code is active?
Operating the unit with an active EE fault is not advisable. Because the controller's stored data is corrupted or unreadable, the board may not regulate temperature accurately, which puts stored food or beverages at risk. The unit should be serviced before being returned to regular use.
How much does it cost to fix the EE error on a Perlick refrigerator?
If the issue is resolved through reprogramming alone, costs are limited to a service call and labor, typically in the range of $75 to $200 depending on your location and the technician's rates. If the controller board must be replaced, parts and labor combined can range from $200 to $500 or more, depending on the specific model and parts availability.

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