Error Code
medium
Hobart AM16 – Not Dispensing Chemicals
On your HOBART AM16 DISHWASHERS unit, chemicals not dispensing typically indicates issues…
Hobart AM16 - Error 052: Drain hose is clogged
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 AM16 DISHWASHERS unit, error 052 signifies the wash tank water level has exceeded its upper limit, primarily caused by a clogged or restricted drain system. Immediately power off the machine and inspect the standpipe, wash tank bottom, and drain hose for any debris or kinks. Clearing these obstructions should restore normal water levels and operation.
Technical Details
Repair Steps:
- Safety First: Power Down and Cool Down
Before performing any inspection or maintenance, always turn off the main power to the dishwasher at the circuit breaker or wall switch. Allow the wash water to cool down completely to prevent any risk of scalding or burns. - Inspect the Wash Tank and Standpipe for Debris
Open the dishwasher door and carefully remove the wash arms, filters, and the standpipe (overflow pipe) from the wash tank. Visually inspect the bottom of the wash tank and the inside of the standpipe for any food debris, utensils, broken glass, or other obstructions. Thoroughly clean any blockages found and ensure the standpipe is clear and properly seated. - Check the Drain Hose for Kinks or Obstructions
Locate the drain hose, typically found at the back or underneath the machine, leading to the floor drain or grease trap. Ensure the hose is not kinked, crushed, or improperly installed, which could restrict water flow. If accessible, disconnect the drain hose from both ends and inspect it internally for blockages. You may need to use a flexible drain snake or flush it with water to clear any stubborn clogs. - Clean All Drain System Components
Thoroughly clean all filters, screens, and the entire interior of the wash tank. Ensure the drain pump area (if accessible) is also free of debris. Reinstall all components securely, ensuring filters and the standpipe are correctly positioned to allow proper drainage. - Test and Reset the Machine
Restore power to the machine. If the error code 052 persists on the display, press and hold the power button for 5 seconds to clear the error and perform a system reset. The machine should initiate a drain cycle and then power down. Start a test wash cycle and monitor the water level and drainage to confirm proper operation. If the issue remains, further investigation into the drain pump or water level sensor may be required by a qualified technician.
Common Questions:
Q: Why does my Hobart AM16 still show error 052 after I’ve cleaned the drain hose?
A: If error 052 persists after cleaning the drain hose and standpipe, the issue could be a faulty drain pump (e.g., a jammed or failed impeller), a malfunctioning water level sensor (pressure switch) providing an incorrect reading, or an electrical problem preventing the pump from activating. These components often require professional diagnosis and repair.
Q: Can I continue using my Hobart AM16 dishwasher with error 052?
A: No, it is not recommended to operate the dishwasher with error 052. The excessive water level indicates a severe drainage problem that could lead to the wash tank overflowing, potentially causing water damage to the surrounding kitchen area, creating slip hazards, or damaging the machine itself. Address the issue immediately.
Q: What are the best practices to prevent error 052 from recurring?
A: To minimize the risk of recurring drain issues, ensure all dishes are thoroughly scraped of food debris before being loaded into the dishwasher. Regularly clean the machine’s internal filters and standpipe daily or weekly, depending on usage. Periodically check the external drain hose for any kinks or obstructions, and ensure proper installation.
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.