A dishwasher overflowing in a commercial kitchen can cause significant disruption, leading to delays in service and a messy workspace. If your CMA commercial dishwasher is experiencing this issue, it's essential to address it promptly to avoid further damage and ensure smooth operations. In this guide, we'll walk you through common causes of an overflowing dishwasher and provide step-by-step instructions to resolve the issue.

What causes the CMA dishwasher to overflow?

A CMA dishwasher overflow occurs because of multiple problems but you need to find the specific issue to solve it effectively. The primary causes of dishwasher overflows are blocked drains defective float switches and faulty water inlet valves. Understanding the core causes points you toward proper solutions that prevent future occurrences.

  • Drain Blockages: Clogged drain lines or a blocked air gap can prevent proper drainage, causing water to back up and overflow.
  • Defective Float Switch: If the float switch is stuck or malfunctioning, it may not signal when the dishwasher has reached the correct water level, leading to overfilling.
  • Faulty Water Inlet Valve: A malfunctioning inlet valve or a stuck valve will allow water to keep entering the dishwasher which creates an overflow.
  • Excessive Suds: Using excessive detergent or an incorrect product variety will create excessive foaming that might overflow during dishwashing operations.
  • Improper Installation: Dishwasher drainage problems occur when drain hoses are misaligned or when connections are installed improperly causing water to back up inside the unit.

How to Fix a CMA Dishwasher Overflowing

If your CMA commercial dishwasher is overflowing, follow these steps to resolve the issue. Troubleshooting involves inspecting common components, such as the drain hose, float switch, and water inlet valve, to pinpoint the cause of the overflow.

  •  Turn Off the Power and Water Supply: 

Start your troubleshooting process by protecting yourself through complete power disconnection at the main circuit breaker. To avoid further water entry into the system, turn off all water supplies. Your safety depends on following these basic steps which prevent electrical problems and flooding as you repair your dishwasher.

  • Check the Drain and Filters: 

Drain clogs frequently result in dishwasher overflow situations. Clear any clogging items from both drain hose elements and filter before checking the water flow. A clogged filter creates water drainage limitations that result in overflow conditions. Make sure to fully clean the filter system before checking each piece of the drain hose for clogs or kinks that block water flow.

  • Inspect the Float Switch: 

The float switch operates as the regulator of water levels inside your dishwasher. The float switch fails to stop water from filling the machine when it malfunctions or becomes obstructed thereby causing an overflow. Scrub out the sink base area of your dishwasher to find the float switch at the low point. Wipe out debris as needed. To check the float's operation properly you should raise and lower it gently. The device requires replacement when either its functionality or condition becomes impaired.

  •  Examine the Water Inlet Valve: 

The water inlet valve controls the amount of water entering your dishwasher. If this valve is stuck open, it will allow too much water to flow into the dishwasher, causing an overflow. Check for any visible damage or debris around the valve. You can also use a multimeter to test the valve for electrical continuity. If the water inlet valve is defective, replacing it with high-quality parts from PartsFe will prevent further overflows. PartsFe offers a wide range of replacement parts that ensure your dishwasher operates efficiently without the risk of overflows or other malfunctions.

  • Check for Proper Installation: 

Improper installation methods lead to water backup events that result in overflow conditions. Make sure the dishwasher installation is correct by examining how the drain hose is positioned. A dishwasher should maintain an appropriate height that avoids drainage problems. Your dishwasher needs to be level because it affects water drainage and flow patterns during dishwasher operations.

  • Run a Test Cycle: 

After finishing all inspections and repairs you need to start testing your dishwasher. Restore power and water supply then execute a brief washing cycle. During the cycle monitor the water level to guarantee both efficient draining and no overflowing occurs. A successful operation of the system indicates the problem has been fixed. Additional testing will be required when the issue continues to exist.

Preventing Future Overflows in Your CMA Dishwasher

Overflowing dishwashers can be a major hassle, but with the right preventive measures, you can avoid this issue and keep your CMA dishwasher running smoothly. Regular maintenance is the key to preventing overflows, as it helps catch potential problems before they escalate. By staying on top of basic maintenance tasks, you ensure your dishwasher functions at its best, reduce the risk of malfunctions, and save on repair costs in the long run.

Here are some key steps to take:

  • Clean Filters Regularly: Blocked filters can impair drainage. Clean them monthly to avoid water backup.
  • Inspect the Drain Hose: Check for clogs or kinks that could prevent proper drainage and cause overflow.
  • Monitor Water Pressure: Ensure the water pressure is within the recommended range to prevent overfilling.
  • Check the Float Switch: Inspect it for proper movement and clean it regularly to avoid water level issues.
  • Examine the Water Inlet Valve: Make sure the valve shuts off properly to avoid continuous water flow into the dishwasher.
  • Use the Right Detergent: Follow the manufacturer's guidelines to prevent excessive suds, which can lead to overflows.
  • Ensure Proper Installation: Make sure the dishwasher is properly leveled and the drain hose is correctly positioned.

Conclusion: Keep Your CMA Dishwasher in Top Condition

 Maintaining your professional dishwasher at its best performance level remains essential for kitchen operations to continue without interruption when a CMA dishwasher starts to overflow. Using these diagnostics procedures allows you to address equipment problems at their origin for fast returns to dishwasher operation. Proactive maintenance practices combined with careful attention to detail help stop these problems from occurring so your kitchen operates efficiently.

FAQ'S:

Why is the dishwasher flooding at the bottom?

A dishwasher flooding at the bottom is typically caused by clogged drains or filters, a faulty drain pump, issues with the water inlet valve, a broken float switch, improper installation, a damaged door seal, or a blocked air gap. These issues prevent proper drainage or allow excess water to enter the dishwasher, leading to flooding. Checking and cleaning the drain, inspecting the float switch, and ensuring proper installation can help resolve the problem.

What should I do if the float switch in my CMA dishwasher is faulty?

If the float switch is faulty, it may need to be replaced. The float switch helps regulate the water level inside the dishwasher, and a malfunction can cause the unit to overflow. You can inspect the float switch for debris or damage and replace it if necessary.

Can a clogged drain cause my CMA dishwasher to overflow?

Yes, a clogged drain can prevent proper water drainage, causing it to back up and overflow. Be sure to clean the drain filter and ensure the drain hose is free from blockages to prevent this issue.