mypros+
Error code reference

Cove Dishwasher Error Code 600148

Diverter valve

Cove codesCove dishwasher codes

Diverter valve: position sensor ZE1 not found.

First step from the service manual

Disconnect the power to the unit.

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

MyPros+ Max

Get the full diagnostic procedure for 600148.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What 600148 means on a Cove dishwasher

Error code 600148 on a Cove dishwasher indicates that the control system cannot detect the position sensor ZE1 on the diverter valve. The diverter valve is a critical component responsible for routing water flow between the different wash arms or spray zones during a wash cycle. It uses a position sensor, designated ZE1, to confirm its rotational position so the control board knows which wash zone is currently active. When the sensor signal is absent or unreadable, the dishwasher cannot safely continue operation and triggers this fault.

The ZE1 position sensor communicates its location data back to the main control board through a dedicated wiring circuit. If the sensor itself has failed, if the wiring harness connecting it has become damaged or disconnected, or if the connector at either the sensor or the control board has corroded or worked loose, the board will log this error. In some cases, the diverter valve motor assembly itself may have seized or failed in a way that physically prevents the sensor from reaching a readable position.

The correct first diagnostic step is to disconnect power to the unit before inspecting any components. With power removed, a technician should check the wiring harness running to the diverter valve, inspect the ZE1 sensor connector for corrosion or damage, and verify that the valve assembly moves freely. If the wiring is intact, the sensor itself or the complete diverter valve assembly may need replacement to resolve the fault.

Source: manufacturer service documentation.

Common causes of 600148

  1. 01

    Disconnected or loose wiring connector

    Wiring / connection

    The connector linking the ZE1 position sensor to the wiring harness may have vibrated loose or pulled free. Inspect the connector at both the sensor and the control board for secure seating.

  2. 02

    Failed ZE1 position sensor

    Part replacement

    The ZE1 sensor itself may have failed electrically and can no longer transmit a valid position signal. This typically requires replacing the sensor or the diverter valve assembly it is integrated with.

  3. 03

    Damaged or corroded wiring harness

    Part replacement

    The wiring running to the diverter valve position sensor may have chafed, corroded, or broken, interrupting the signal circuit. Visually inspect the harness along its full length for damage.

  4. 04

    Seized or failed diverter valve assembly

    Part replacement

    If the diverter valve motor or mechanism has seized, the sensor may never reach a detectable position. Check whether the valve moves freely when power is disconnected.

  5. 05

    Control board communication fault

    Part replacement

    In rare cases, the main control board may have lost the ability to read the ZE1 sensor input correctly. This is typically diagnosed only after all wiring and sensor components have been confirmed functional.

See the test procedure for each cause

Frequently asked questions about 600148

What does 600148 mean on a Cove dishwasher?
Error code 600148 means the dishwasher control system cannot find or read the ZE1 position sensor on the diverter valve. The diverter valve routes water to different spray zones during the wash cycle, and the ZE1 sensor tells the control board where the valve is positioned. Without a valid sensor signal, the dishwasher shuts down to prevent incorrect water routing. The fault points to a sensor, wiring, or valve assembly problem that requires physical inspection.
Can I fix error code 600148 myself?
The first step, disconnecting power to the unit, is safe for anyone to perform. Beyond that, diagnosing and repairing this error requires accessing the diverter valve and its wiring harness, which involves disassembling interior dishwasher components. Technicians comfortable with appliance wiring and component access can inspect the connector and harness, but replacing the diverter valve or sensor is best handled by someone with repair experience.
Is it safe to keep using my Cove dishwasher with error code 600148 active?
No, it is not recommended to continue running the dishwasher while this error is active. The control board cannot confirm the diverter valve position, which means water may not be routed correctly to the spray arms. Running cycles in this condition could result in poor wash performance or potential mechanical stress on the pump and valve components. Power should be disconnected until the issue is diagnosed and repaired.
Will resetting my Cove dishwasher clear error code 600148?
A power reset may temporarily clear the error from the display, but the code will return if the underlying problem with the ZE1 position sensor or its wiring has not been resolved. Resetting does not repair a failed sensor, a damaged harness, or a faulty diverter valve assembly. Clearing the code without addressing the root cause will result in the dishwasher faulting out again during the next cycle.
How much does it cost to repair error code 600148 on a Cove dishwasher?
Repair costs depend on the root cause. If only a wiring connector needs to be reseated, the cost may be limited to a service call fee, typically in the range of $75 to $150. If the ZE1 sensor or the diverter valve assembly requires replacement, parts and labor combined could range from $150 to $400 or more depending on parts pricing and the technician's rates. Cove dishwashers are premium appliances, so parts costs may be on the higher end of typical ranges.

Related Cove dishwasher codes

All Cove dishwasher codes
View all 62 Cove dishwasher codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass