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Error code reference

Cove Dishwasher Error Code 900112

MCM

Cove codesCove dishwasher codes
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What the 900112 error code actually means

Your Cove dishwasher's control board and touchpad display panel are not speaking the same software language, so the machine has stopped to prevent problems. This usually happens after a software update goes wrong or when a replacement part is installed that isn't fully compatible with the rest of the machine. A technician will most likely need to replace the display panel unit to fix this.

Diagnostic procedure

The full 900112 procedure

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First diagnostic step
Replace the UIM.
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Most common causes of 900112

Ranked by how often they cause this code
  1. 1UIM with incompatible firmware version
  2. 2Failed or interrupted firmware update
  3. 3Recently installed replacement UIM
  4. 4MCM firmware mismatch
  5. 5Communication wiring fault between MCM and UIM

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Questions people ask about 900112

What does 900112 mean on a Cove dishwasher?
Error code 900112 means the Master Control Module detected that the User Interface Module's firmware is not compatible with its own. The MCM and UIM must run matching firmware versions to communicate correctly. The dishwasher stops operation and displays this code rather than run a cycle with mismatched control software.
How do I fix error code 900112 on a Cove dishwasher?
The first recommended step is to replace the UIM with a unit that carries compatible firmware for the installed MCM. If a new UIM does not resolve the error, the wiring harness between the two modules should be inspected for damage or loose connectors. In cases where the MCM firmware is outdated or corrupted, that module may also require attention.
How much does it cost to repair error code 900112 on a Cove dishwasher?
Repair costs depend on whether the UIM alone needs replacement or if additional components or firmware service is required. A UIM replacement on a Cove dishwasher typically falls in the range of $150 to $400 including parts and labor, though costs can vary based on parts availability and local labor rates. If the MCM also requires service, total costs would be higher.
Will resetting my Cove dishwasher clear error code 900112?
A simple reset will not permanently clear code 900112 because the error is caused by a fundamental firmware incompatibility between the MCM and UIM. The modules will fail the same version check on every startup until the incompatibility is resolved. Resetting may temporarily clear the display, but the code will return as soon as the machine attempts to initialize.
Is it safe to use my Cove dishwasher while error code 900112 is active?
The dishwasher will generally not allow normal operation while this error is active, since the MCM halts the machine when it detects the firmware incompatibility. Attempting to force operation is not recommended. The appliance should remain idle until the UIM or firmware issue is properly resolved by a qualified technician.

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