mypros+
Error code reference

Dacor Dishwasher Error Code LO

Rinse aid level is low

Dacor codesDacor dishwasher codes

Rinse aid level is low – the rinse aid dispenser needs to be refilled.

First step from the service manual

Add rinse aid to the dispenser.

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 LO.

  • 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 LO means on a Dacor dishwasher

The LO error code on a Dacor dishwasher indicates that the rinse aid level inside the dispenser has dropped below the minimum threshold required for normal operation. The dishwasher monitors this level through a rinse aid sensor, typically a float-type or optical sensor located inside the dispenser reservoir. When the sensor detects that the rinse aid supply is insufficient, the control board triggers the LO alert to notify the user before the reservoir runs completely dry.

Rinse aid plays a critical role in the final rinse cycle by reducing the surface tension of water on dishes and glassware. Without adequate rinse aid, water tends to bead up and leave spots, streaks, or a cloudy film on dishes after the drying cycle. The dispenser releases a small, metered dose of rinse aid during each wash cycle, so consumption is gradual. Depending on wash frequency and the dispenser's dose setting, a full reservoir can last anywhere from a few weeks to several months.

In most cases, the LO code is a routine maintenance notification rather than a fault indicating component failure. The primary corrective action is simply refilling the rinse aid dispenser with a compatible rinse aid product. After refilling, the sensor should detect the restored level and the LO indicator should clear, either immediately or after the next completed wash cycle. If the LO code persists after refilling, the dispenser sensor or the dispenser assembly itself may need inspection.

Source: manufacturer service documentation.

Common causes of LO

  1. 01

    Depleted rinse aid reservoir

    Wiring / connection

    Normal consumption over multiple wash cycles gradually empties the dispenser. This is the most common reason for the LO code and is resolved simply by refilling the reservoir.

  2. 02

    High dispenser dose setting

    Wiring / connection

    If the rinse aid dose dial is set to a higher level, the dishwasher dispenses more rinse aid per cycle, causing the reservoir to empty faster than expected. Check and adjust the dose setting if needed.

  3. 03

    Dispenser cap not sealing properly

    Part replacement

    A loose or damaged dispenser cap can allow rinse aid to leak out during wash cycles, causing the level to drop prematurely. Inspect the cap and surrounding seal for cracks or improper fit.

  4. 04

    Faulty rinse aid level sensor

    Part replacement

    If the LO code appears immediately after a confirmed full refill, the sensor that monitors the rinse aid level may be malfunctioning and sending a false low signal to the control board. This would require inspection of the dispenser assembly.

  5. 05

    Damaged dispenser assembly

    Part replacement

    A cracked dispenser body can cause rinse aid to leak into the door panel rather than staying in the reservoir. If you notice residue or staining around the dispenser area, the entire dispenser assembly may need replacement.

See the test procedure for each cause

Frequently asked questions about LO

What does LO mean on a Dacor dishwasher?
LO is a rinse aid level alert indicating that the rinse aid dispenser is running low and needs to be refilled. The dishwasher uses a sensor inside the dispenser to detect the level and alerts you before it runs completely empty. This is a routine maintenance notification, not a mechanical fault. Refilling the dispenser with rinse aid is all that is typically needed to resolve the code.
How do I fix the LO code on my Dacor dishwasher?
Open the rinse aid dispenser compartment, located on the inside of the dishwasher door, and fill it with a compatible rinse aid product until the reservoir is full. Replace the cap securely and run a wash cycle. The LO indicator should clear once the sensor detects the restored rinse aid level. If the code continues after refilling, inspect the dispenser cap, seal, and sensor for damage.
Will resetting my Dacor dishwasher clear the LO code?
Resetting the dishwasher without refilling the rinse aid dispenser will not permanently clear the LO code. The alert is driven by the rinse aid sensor, so the code will return as long as the dispenser level remains low. Refilling the dispenser is the correct way to resolve the alert. A reset alone is not a substitute for adding rinse aid.
Is it safe to run my Dacor dishwasher with the LO code showing?
Running the dishwasher with the LO code active is generally safe and will not damage the appliance. However, without adequate rinse aid, you can expect water spots, streaks, or poor drying results on dishes and glassware. It is best to refill the dispenser promptly to maintain wash performance and protect glassware from mineral deposits over time.
How much does it cost to fix the LO code on a Dacor dishwasher?
In most cases, resolving the LO code costs only the price of a bottle of rinse aid, typically in the range of $5 to $15. If the dispenser cap or seal needs replacement, parts generally cost between $10 and $30. A full dispenser assembly replacement, if the sensor or housing is damaged, can range from $30 to $80 or more depending on the specific model and where parts are sourced.

Related Dacor dishwasher codes

All Dacor dishwasher codes
View all 15 Dacor dishwasher codes

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

Get Started

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