Error Code
medium
Hobart AM16 – Not Dispensing Chemicals
On your HOBART AM16 DISHWASHERS unit, chemicals not dispensing typically indicates issues…
Hobart AM16 - Error 057: Wash Tank Low Water Level During Cycle Start
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 HOBART AM16 DISHWASHERS unit, error code 057 indicates that the wash tank water level is below the minimum required at the start of a cycle. The machine will automatically attempt to fill the tank, delaying the cycle until the correct level is reached. This often points to issues with water supply, the fill valve, or the level sensing system.
Technical Details
Repair Steps:
- Verify Water Supply and Pressure: Ensure that all external water supply shut-off valves leading to the dishwasher are fully open. Check for adequate incoming water pressure, as low pressure can significantly prolong or prevent the tank from filling correctly.
- Inspect and Test the Fill Valve Assembly: Locate the water inlet solenoid valve (fill valve) on the machine. Inspect its inlet screen for any debris or mineral buildup that might restrict water flow. Test the solenoid coil for continuity and ensure it is properly actuating (opening and closing) when energized. Verify that the control board is supplying appropriate voltage to the valve during a fill cycle.
- Examine the Water Level Sensor/Probe: Identify the wash tank level probe or float switch. Carefully inspect it for scale buildup, food debris, or damage to the probe itself or its wiring connections. Clean the probe thoroughly with a descaling solution if necessary. Test the continuity or resistance of the sensor circuit as per the service manual to ensure it’s accurately reporting water levels.
- Check for Drain Valve Leakage: Observe the drain valve for any signs of leakage while the wash tank is attempting to fill. A faulty or partially open drain valve can cause water to continuously escape, preventing the tank from reaching the desired fill level. Inspect the drain valve’s seal and actuator for obstructions or wear.
- Access Machine Diagnostics and Reset: If available, enter the dishwasher’s service mode (refer to your specific AM16 model’s service manual) to review any diagnostic codes or real-time sensor readings related to water levels or fill valve status. After performing any necessary repairs or cleaning, perform a system reset to clear the error code.
Common Questions:
Q: Why does my HOBART AM16 keep showing a low water level warning?
A: This often indicates insufficient water supply, a malfunctioning fill valve, a faulty water level sensor, or a slow leak from the drain valve. Regular checks of these components are crucial for proper operation.
Q: Can I still use the dishwasher if it displays error 057?
A: Yes, the machine will automatically attempt to fill and proceed once the correct level is reached. However, persistent low water levels will significantly delay cycles and signal an underlying issue that needs prompt attention to restore optimal performance.
Q: How can I prevent the wash tank water level from dropping too low?
A: Ensure your incoming water supply has adequate pressure, routinely check and clean the fill valve’s screen, and periodically inspect and descale the wash tank level sensor to prevent mineral buildup and ensure accurate readings.
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.