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Caple Dishwasher Error Codes: A Clear Guide to Troubleshooting
Dishwashers are a modern kitchen essential, saving time and effort by doing a chore that no one loves. However, when your dishwasher suddenly isn’t performing as expected, it can become a source of frustration. If you own a Caple dishwasher and it’s displaying fault codes, don’t worry these codes are designed to help diagnose the problem quickly so you can address it efficiently.
This blog will walk you through the most common Caple dishwasher fault codes, what they mean, and how you can resolve these issues step-by-step.
What Are Dishwasher Fault Codes?
Fault codes are built into modern appliances to indicate specific errors or system malfunctions. Instead of playing a guessing game when your dishwasher isn’t working, these codes give you a clear starting point for troubleshooting.
Caple dishwashers, like many modern machines, have an electronic control system that reads and displays errors when certain issues arise. By understanding these fault codes, you can determine whether a simple adjustment will fix your dishwasher, or if you’ll need professional help.

Common Caple Dishwasher Fault Codes & Their Meanings
Below is a list of frequently seen Caple dishwasher error codes and what they indicate. Remember to always check your user manual for model-specific details as some error codes can vary slightly.
E1 – Water Supply Error
What it means:
Your dishwasher isn’t receiving enough water, or there’s an issue with the water inlet.
What to do:
- Check that your water supply is turned on.
- Ensure the water inlet hose isn’t kinked or blocked.
- Inspect the water inlet filter for debris or sediment buildup and clean it if necessary.
If the issue persists, the water inlet valve may need replacing.
E2 – Drainage Error
What it means:
The dishwasher is unable to drain water due to a blockage or pump malfunction.
What to do:
- Check the drain hose for kinks, clogs, or improper positioning.
- Ensure that the sink’s drain is not clogged.
- Inspect the drain pump and remove any trapped debris or food particles.
If the problem continues, the drain pump may require repair or replacement.
E3 – Heating Error
What it means:
This code indicates an issue with the heating element, causing water not to reach the required temperature during the cycle.
What to do:
- Verify that the dishwasher is connected to a power supply capable of supporting its heating element.
- If the code continues, the heating element or thermostat may need to be checked by a technician.
E4 – Overflow or Leakage Error
What it means:
The dishwasher has detected excess water inside, possibly due to a leak or overfilling.
What to do:
- Switch off the dishwasher and disconnect the power.
- Inspect the base for water. If water is present, carefully remove it and identify the source of the leak.
- Examine the door seal and hoses for any visible damage. Replace faulty components if needed.
Consider contacting a professional if the leak source is not apparent.
E5 – Door Lock Error
What it means:
The dishwasher door is not properly secured, preventing the cycle from starting.
What to do:
- Ensure the dishwasher door is completely closed and latched.
- Check for obstructions, such as overfilled racks or debris caught in the door seal.
- Inspect the door latch mechanism for damage or wear.
If the door latch is faulty, it might require replacement.
E6 – Fault in Temperature Sensor
What it means:
There’s a problem with the dishwasher’s temperature sensor, causing it to misread the water temperature.
What to do:
This is generally a technical issue that requires professional diagnosis. A technician may need to replace or repair the temperature sensor.
E7 – Circulation Pump Error
What it means:
This error occurs when the circulation pump, which moves water through the spray arms, is malfunctioning.
What to do:
- Listen for unusual noises during operation, which may indicate a pump issue.
- Check the spray arms for blockages or objects obstructing their movement.
If the issue persists, seek professional support as repairing a circulation pump often requires specialized expertise.

When Should You Call a Professional?
While some fault codes indicate straightforward fixes, others involve specific components requiring technical knowledge and expertise. Call an appliance repair professional if the following apply to your situation:
- The fault code persists even after you’ve tried the troubleshooting steps.
- You notice burned or damaged parts inside the dishwasher.
- You’re uncomfortable working with electrical components or plumbing.
Attempting to fix advanced issues without the right skills or tools can result in further damage—or even void your warranty.
Preventative Tips to Avoid Dishwasher Faults
Once you’ve resolved the immediate issue, take these steps to maintain your Caple dishwasher and prevent future errors:
- Clean filters regularly: A clogged filter can lead to drainage and water circulation issues.
- Keep spray arms clear: Remove food debris and hard water deposits from spray arms to ensure they spin freely.
- Use the right detergent: Follow the manufacturer’s recommendations to avoid creating residue that clogs parts.
- Inspect hoses periodically: Check for any worn-out or damaged hoses and replace them as necessary.
- Run maintenance cycles: Many dishwashers have maintenance cycles or recommend a monthly cleaning using a dishwasher-safe cleaner.
Final Thoughts
Caple dishwasher fault codes might initially seem daunting, but they are your appliance’s way of telling you what’s wrong. By identifying and addressing the error codes, you can often resolve issues and restore your dishwasher’s functionality quickly.
If you’re unsure about fixing an error code or think it’s beyond a DIY repair, don’t hesitate to call in a professional you’ll save time, hassle, and possibly prevent further damage.
With the right care and attention, your Caple dishwasher will continue to be a reliable partner in your kitchen for years to come.