Classeq Troubleshooting Guide

Classeq Warewashing Troubleshooting Guide

Commercial Dishwasher Error Codes, Drain Issues, Poor Wash Results & Fixes

Classeq commercial dishwashers are designed for durability and consistent performance in restaurants, cafés, schools, hospitals, and catering operations. However, even the most reliable warewashing systems can experience faults due to water conditions, detergents, wear components, or operational errors.

This Classeq warewashing troubleshooting guide covers the most common problems, fault codes, symptoms, and step-by-step corrective actions to help you restore your machine to optimal working condition quickly and safely.

Classeq Dishwasher Not Draining

Common Causes

• Blocked drain filter

• Clogged drain hose

• Faulty drain pump

• Grease or food debris buildup

• Incorrect installation height

Troubleshooting Steps

1. Turn off power and isolate water supply.

2. Remove and clean the internal drain filter.

3. Inspect the drain hose for kinks or obstructions.

4. Check drain pump impeller for debris.

5. Verify drain hose is installed to correct standpipe height.

When to call a technician:
If the pump hums but water does not discharge, the drain motor may be defective.

Classeq Dishwasher Not Filling with Water

Possible Reasons

• Closed water isolation valve

• Faulty inlet solenoid valve

• Low water pressure

• Blocked inlet strainer

• Control board fault

Resolution

• Confirm incoming water supply is fully open.

• Clean inlet valve strainer screen.

• Verify minimum water pressure requirements are met.

• Replace inlet valve if no water flows when energized.

Poor Wash Results or Dirty Dishes

Symptoms

• Greasy residue

• White film or streaking

• Food particles remaining after wash

Root Causes

• Insufficient water temperature

• Worn wash arms

• Incorrect detergent dosing

• Scale buildup on heating elements

Corrective Actions

• Ensure wash temperature reaches manufacturer specifications.

• Clean and rotate wash arms freely.

• Adjust chemical dosing pumps.

• Descale machine regularly using approved solutions.

Classeq Dishwasher Not Heating Water

Likely Causes

• Failed heating element

• Faulty thermostat or temperature probe

• Scale buildup causing thermal shutdown

• Control board malfunction

Troubleshooting

• Inspect and test heating elements for continuity.

• Remove limescale accumulation.

• Replace faulty temperature sensors.

• Verify heating relay operation.

Classeq Dishwasher Error Codes (Common)

Machine Not Starting

Checks

• Door microswitch engagement

• Emergency stop activation

• Power supply and fuses

• Control panel keypad faults

Ensure the door fully latches and safety interlocks are engaged before troubleshooting internal components.

Preventative Maintenance Tips

• Clean filters daily

• Descale every 4–8 weeks depending on water hardness

• Inspect wash arms weekly

• Verify detergent and rinse aid levels daily

• Schedule annual professional servicing

Regular preventative maintenance significantly extends Classeq dishwasher lifespan and prevents unexpected downtime.

When to Call a Classeq Service Engineer

Contact a certified technician if you experience:

• Repeated fault codes

• Electrical faults

• Heating system failures

• Control board errors

• Persistent drainage issues

Attempting advanced repairs without training can void warranties and cause further damage.

Need Professional Classeq Dishwasher Repairs?

We provide Classeq commercial dishwasher repairs, servicing, parts replacement, and emergency breakdown support across hospitality, healthcare, and education sectors. Our engineers carry genuine Classeq parts and provide rapid on-site response.

Call now for fast Classeq warewasher repair support.