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Error code reference

Cove Dishwasher Error Code 200129

HTR1 did not reach temperature.

Cove codesCove dishwasher codes

HTR1 did not reach temperature.

First step from the service manual

Check the heating element HTR1: disconnect power cord, disconnect PJ22 and PJ23, check resistance of HTR1 (should be 16 ohms at 70-80°F).

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

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What 200129 means on a Cove dishwasher

Error code 200129 on a Cove dishwasher indicates that the primary heating element, designated HTR1, failed to reach its target temperature within the expected time frame during a wash or dry cycle. HTR1 is responsible for heating the water or the dishwasher interior to the temperatures required for effective cleaning and sanitizing. When the control board monitors HTR1's output and determines that the set temperature threshold was not achieved, it logs this fault and halts or interrupts the cycle to prevent damage or unsafe operation.

The diagnostic process begins with a resistance check of HTR1. With the power cord disconnected, connectors PJ22 and PJ23 must be unplugged before measuring resistance across the element. A properly functioning HTR1 should read approximately 16 ohms at an ambient temperature of 70 to 80 degrees Fahrenheit. A reading significantly higher, lower, or an open circuit (infinite resistance) indicates a failed heating element that requires replacement. A reading within range shifts focus to the supply circuit, wiring, or control board.

Beyond the element itself, this error can also result from failed wiring connections at PJ22 or PJ23, a damaged wiring harness between the control board and the element, a faulty temperature sensor that provides incorrect feedback to the control board, or a control board that is not supplying proper voltage to HTR1. Low water fill levels can also prevent the element from heating effectively, since the element may not be fully submerged or the wash water volume may be insufficient to register a temperature rise.

Source: manufacturer service documentation.

Common causes of 200129

  1. 01

    Failed HTR1 heating element

    Part replacement

    The heating element itself has burned out or broken internally. Disconnecting PJ22 and PJ23 and measuring resistance across HTR1 will reveal an open circuit or a resistance far outside the expected 16 ohms at 70 to 80 degrees Fahrenheit.

  2. 02

    Loose or corroded connections at PJ22 or PJ23

    Wiring / connection

    The connectors supplying power to HTR1 can loosen, corrode, or develop poor contact over time, interrupting current flow to the element even if the element itself is functional. Inspect both connectors visually and reseat them firmly after disconnecting power.

  3. 03

    Damaged wiring harness

    Part replacement

    Wiring between the control board and HTR1 can fray, melt, or break, preventing voltage from reaching the element. A visual inspection of the harness along its full run can identify heat damage, pinched wires, or breaks.

  4. 04

    Faulty temperature sensor

    Part replacement

    If the temperature sensor is providing inaccurate readings to the control board, the board may log this error even when HTR1 is physically operating. A failed sensor can report that the target temperature was never reached when heating did in fact occur.

  5. 05

    Control board not supplying voltage to HTR1

    Part replacement

    If the control board has failed or a relay on the board has failed, it may not send the correct voltage signal to activate HTR1 at all. This should be investigated after confirming that the element, wiring, and connectors all check out correctly.

See the test procedure for each cause

Frequently asked questions about 200129

What does 200129 mean on a Cove dishwasher?
Error code 200129 means the primary heating element, HTR1, did not reach its required temperature during a cycle. The dishwasher monitors heating performance and triggers this code when the expected temperature threshold is not met within a set period. This fault causes the dishwasher to stop the cycle and requires diagnosis of the heating element, its connectors, and the supply circuit.
Can I fix error code 200129 myself?
A knowledgeable DIYer can perform the initial resistance test on HTR1 by disconnecting the power cord, unplugging connectors PJ22 and PJ23, and measuring resistance with a multimeter. A reading of approximately 16 ohms at room temperature indicates the element is intact. If the element tests bad, replacing it is a moderate repair, but work involving the control board or internal wiring is typically better handled by a qualified technician.
Is it safe to use my Cove dishwasher when error code 200129 is showing?
You should not continue running the dishwasher with this error active. A heating element that is not functioning correctly means dishes may not be properly sanitized, and in some failure scenarios the element or related wiring could pose a risk. Resolve the fault before resuming normal use.
How much does it cost to repair error code 200129 on a Cove dishwasher?
Repair costs depend on the root cause. If only the connections at PJ22 or PJ23 need reseating, there may be no parts cost. Replacing the HTR1 heating element typically runs between $50 and $200 for the part, with labor adding $100 to $250 depending on your area. A control board replacement, if needed, is generally the most expensive scenario and can range from $200 to $500 or more including labor.
Will resetting my Cove dishwasher clear error code 200129?
Resetting the dishwasher may temporarily clear the code from the display, but if the underlying problem with HTR1 or its circuit has not been corrected, the error will return as soon as the dishwasher attempts to heat again. A reset alone is not a repair. The heating element and its supply circuit need to be tested and the fault addressed before the code will stay clear.

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