Error Code
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Meiko M-iClean – Error 972: Language Memory Fault
On your MEIKO UM, UM+, US unit, error code 972 indicates a…
Meiko M-iClean - Ware Is Not Sufficiently Cleaned
Caution / Monitor Closely
Warning: The information provided here is for educational purposes only.
Working with commercial kitchen equipment involves high voltage, gas, and high temperatures.
We strongly recommend contacting a certified service technician for any repairs.
We are not responsible for any damage or injuries resulting from DIY repair attempts.
This information is provided 'as is' without any guarantees of completeness or accuracy.
TLDR
On your UM, UM+, US unit, ware not being sufficiently cleaned typically indicates an insufficient wash cycle time for the soil level or heavily soiled wash tank water. Adjusting the cycle duration or performing a manual water change will often resolve this. Regular monitoring of wash water quality is crucial for optimal results.
Technical Details
Repair Steps:
- Assess Soil Level: Examine the dishes or ware being washed. If they are heavily soiled with dried-on food or grease, the current wash cycle may be too short for effective cleaning.
- Adjust Cycle Time: Select a longer wash cycle setting on your MEIKO UM, UM+, US unit. Most commercial dishwashers offer various cycle lengths designed for different levels of soiling.
- Inspect Wash Tank Water: Observe the condition of the water in the wash tank. If the machine has been in operation for an extended period, or processing very dirty loads, the wash water can become heavily soiled, reducing cleaning effectiveness.
- Perform Manual Water Change: If the wash tank water appears heavily soiled, perform a manual water change. Refer to Section 4.9 of your MEIKO UM, UM+, US operator’s manual for the specific procedure to drain and refill the wash tank.
- Check Detergent and Rinse Aid Dosage: Verify that the detergent and rinse aid dispensers are functioning correctly and that the chemical concentrations are appropriate for your water conditions and soil levels. Consult your chemical supplier or the machine’s manual for recommended settings.
- Inspect Spray Arms and Nozzles: Ensure all spray arms are rotating freely and that the nozzles are clear of any debris or mineral buildup. Clogged nozzles can lead to uneven spray patterns and poor cleaning.
- Verify Wash Water Temperature: Confirm that the wash water is reaching the correct operating temperature as specified in your MEIKO UM, UM+, US manual. Inadequate temperatures can significantly impair cleaning and sanitization.
Common Questions:
Q: Why is my ware still dirty even after choosing a longer cycle?
A: If a longer cycle doesn’t resolve the issue, consider the quality of your wash tank water. It might be heavily soiled and require a manual change. Also, inspect the spray arms and nozzles for blockages, and ensure proper detergent concentration and water temperature.
Q: How often should I perform a manual water change on my MEIKO UM, UM+, US?
A: The frequency of manual water changes depends on your machine’s usage, the typical soil level of your ware, and your local water conditions. For optimal cleaning and hygiene, regularly monitor the clarity of the wash water and perform a change when it appears excessively dirty.
Q: Can water hardness affect cleaning performance in my dishwasher?
A: Yes, hard water can significantly reduce the effectiveness of detergents and leave mineral deposits or streaks on your ware. Ensure your water softener (if equipped) is functioning correctly or consult with your chemical supplier for solutions tailored to your water quality.
When to call a technician
Consider calling a certified technician if:
- The error keeps coming back after you've tried the steps above.
- You're not comfortable doing the checks or repairs yourself.
- You notice unusual noise, smell, or behaviour.
- Equipment is under warranty and you want official service.
- You need the unit back in service quickly with minimal downtime.