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Error code reference

Dacor Dishwasher Error Code HO

Hot-the water is heating in preparation for Hi-Temp or Sanitize operations.

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What the HO error code actually means

HO on your Dacor dishwasher simply means the appliance is heating the water up to the high temperature needed for the Hi-Temp or Sanitize wash option you selected. This is completely normal and the cycle will continue on its own once the water reaches the right temperature. No action is needed unless the display stays on HO for a very long time without the cycle moving forward.

Diagnostic procedure

The full HO procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview
1
Confirm the fault
Power cycle the unit: switch off the breaker for 60 seconds, then restore power. If the code returns, the fault is persistent and the procedure below isolates the cause.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of HO

Ranked by how often they cause this code
  1. 1Normal heating cycle operation
  2. 2Cold incoming water supply
  3. 3Failing or burned-out heating element
  4. 4Faulty water temperature sensor or thermistor
  5. 5Control board malfunction

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Questions people ask about HO

What does HO mean on a Dacor dishwasher?
HO is a status indicator that appears when your Dacor dishwasher is actively heating water to reach the elevated temperature required for Hi-Temp or Sanitize cycle options. It is not an error or fault code. The cycle will continue automatically once the water reaches the correct temperature. No user intervention is needed under normal circumstances.
Is it safe to use my Dacor dishwasher when it shows HO?
Yes, HO indicates a normal heating operation and the dishwasher is safe to use. The display simply means the appliance is raising water to the temperature needed for sanitizing or high-temperature washing. If HO never clears and the cycle does not advance, stop the cycle and investigate the heating element and temperature sensor before running the unit again.
How much does it cost to repair a Dacor dishwasher that is stuck on HO?
Repair costs depend on the failed component. A replacement heating element typically runs in the range of $30 to $80 for the part, while a temperature sensor or thermistor is generally $15 to $50. If a control board replacement is needed, parts alone can range from $100 to $300 or more. Adding professional labor will increase the total cost, usually by $75 to $150 depending on your location and service provider.
How do I fix the HO code on my Dacor dishwasher?
If HO appears briefly and the cycle advances, no fix is needed since the dishwasher is operating normally. If HO stays on for an extended period without the cycle progressing, check that hot water is reaching the dishwasher by running the kitchen faucet before starting a cycle. If the problem persists, inspect the heating element for continuity and test the temperature sensor for accurate resistance readings.
Will resetting my Dacor dishwasher clear the HO display?
Resetting the dishwasher will cancel the current cycle and clear the HO display, but it will reappear when you run a Hi-Temp or Sanitize cycle again since it is a normal status indicator. If HO is stuck and the cycle is not advancing, a reset may temporarily resolve the symptom, but the underlying cause such as a faulty heating element or sensor should still be diagnosed.

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