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Error code reference

Cove Dishwasher Error Code 200179

Heating Issue #4 (Fault)

Cove codesCove dishwasher codes

Heating Issue #4 (Fault) — can indicate a scaling issue when accompanied by error codes 100179 or 200198.

First step from the service manual

Check for scaling; follow descale procedure. Investigate in conjunction with error codes 100179 or 200198.

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

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What 200179 means on a Cove dishwasher

Error code 200179 on a Cove dishwasher indicates a Heating Issue Fault, meaning the control system has detected a problem with the heating circuit or the wash water temperature. This fault is part of a group of heating-related codes and is specifically classified as a fault-level event, which means the dishwasher has registered an out-of-range condition serious enough to interrupt normal operation. The heating system in a Cove dishwasher is responsible for bringing water to the correct temperature during wash and sanitize cycles, so a fault here can affect cleaning performance, sanitation, and cycle completion.

When error code 200179 appears alongside codes 100179 or 200198, scaling is the most probable root cause. Scaling occurs when hard water mineral deposits, primarily calcium and magnesium carbonates, accumulate on the heating element or flow-through heater. These deposits act as thermal insulation, preventing efficient heat transfer and causing the control board to register heating faults. The buildup can also restrict water flow through heating components, compounding the temperature-rise problem.

Diagnosis should begin by checking the heating components for visible scaling and performing the manufacturer-specified descale procedure. If error code 200179 appears without the companion codes 100179 or 200198, the fault may point to a wiring issue, a failed heating element, or a control board problem rather than scaling. In that case, a more detailed investigation of the heating circuit, including wiring continuity and component function, is warranted.

Source: manufacturer service documentation.

Common causes of 200179

  1. 01

    Mineral scaling on heating components

    Wiring / connection

    Hard water deposits build up on the heating element or flow-through heater over time, reducing heating efficiency and triggering a fault. This is especially likely when error codes 100179 or 200198 are present at the same time.

  2. 02

    Restricted water flow through the heater

    Wiring / connection

    Scale buildup can narrow the internal passages of a flow-through heater, limiting water volume and causing temperature faults. Check for reduced water flow in conjunction with visible mineral deposits.

  3. 03

    Failed or degraded heating element

    Part replacement

    The heating element itself may have failed due to age, repeated scaling damage, or electrical failure. If descaling does not clear the fault, the element should be tested and replaced if defective.

  4. 04

    Wiring or connection fault in the heating circuit

    Wiring / connection

    A loose, corroded, or damaged wire connection between the control board and the heating component can cause intermittent or persistent heating faults. Inspect all connectors and wiring in the heating circuit for damage or poor contact.

  5. 05

    Control board malfunction

    Part replacement

    If the heating components and wiring check out correctly but the fault persists, the control board may be misreading or failing to properly power the heating circuit. This is a less common cause and should be considered after other components are ruled out.

See the test procedure for each cause

Frequently asked questions about 200179

What does 200179 mean on a Cove dishwasher?
Error code 200179 is a Heating Issue Fault indicating that the dishwasher's control system has detected a problem with the heating circuit or water temperature. When this code appears alongside codes 100179 or 200198, it is a strong indicator of mineral scaling on the heating components. The recommended first step is to check for scale buildup and run a descale procedure.
How do I fix error code 200179 on my Cove dishwasher?
Start by performing the descale procedure, particularly if error codes 100179 or 200198 are also present, as the combination points to mineral buildup on the heater. If descaling resolves the companion codes but 200179 persists, inspect the heating element and wiring connections for damage or failure. Replacing a faulty heating element or repairing a wiring issue may be necessary if the fault continues after descaling.
Is it safe to use my Cove dishwasher when error code 200179 is showing?
Running the dishwasher with an active heating fault is not recommended because the water may not reach the temperatures needed for proper cleaning and sanitization. Continued operation with a scaling issue can also accelerate damage to heating components. It is best to address the fault before resuming regular use.
How much does it cost to repair error code 200179 on a Cove dishwasher?
If the cause is scaling, the repair cost is minimal and typically involves only a descaling solution. If a heating element replacement is needed, parts and labor costs can range from around $150 to $400 depending on your location and service provider. Control board replacement, if required, tends to be the most expensive repair, generally ranging from $300 to $600 or more.
Will resetting my Cove dishwasher clear error code 200179?
A reset may temporarily clear the error code, but it will return if the underlying problem is not resolved. If scaling is the cause, the fault will reappear until the descale procedure is completed and the deposits are removed. Resetting without addressing the root cause is not a reliable fix and may delay proper diagnosis.

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