Error Code
medium
Hobart AM16 – Not Dispensing Chemicals
On your HOBART AM16 DISHWASHERS unit, chemicals not dispensing typically indicates issues…
Hobart AM16 - Error 087: Minimum Final Rinse Temperature Not Reached After Repeating Cycle
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 code 087 indicates that the final rinse temperature has fallen below the programmed set point. This can compromise sanitization effectiveness. Initially, attempt a power cycle by holding the power button for 5 seconds; if the error persists, investigate heating components, water supply, and temperature sensors.
Technical Details
Repair Steps:
- Perform a Power Cycle and Initial Check: First, press and hold the power button for 5 seconds to clear the error, allowing the machine to drain and power off. Restart the unit. Verify the incoming water supply temperature and pressure, ensuring it meets Hobart’s specifications (typically 120-140°F / 49-60°C for initial fill and adequate pressure for effective spray).
- Inspect Heating Elements: Isolate power to the dishwasher. Access the booster heater and tank heating elements. Visually inspect for any signs of damage, corrosion, or breakage. Use a multimeter to test the continuity and resistance of each heating element. A lack of continuity or incorrect resistance indicates a faulty element that needs replacement.
- Verify Rinse Thermostat/Sensor: Locate the final rinse temperature sensor (often an RTD or NTC type) and its associated thermostat. Disconnect power and carefully check the sensor’s wiring for any breaks or loose connections. Test the sensor’s resistance values against the manufacturer’s specifications at various temperatures (if possible, using a hot water bath and thermometer) to ensure it’s providing accurate readings to the control board. A faulty sensor will cause incorrect temperature readings.
- Examine Water Inlet Valve and Booster Heater Contactor: Ensure the water inlet valve is fully opening and allowing adequate water flow. Check the contactor for the booster heater; if it’s stuck open or failing to close, power won’t reach the heating elements. Listen for the contactor engaging when the machine attempts to heat.
- Check for Blockages in Rinse Arms and Nozzles: While often related to wash quality, restricted water flow through rinse arms or clogged nozzles can affect temperature distribution and the sensor’s ability to accurately read the overall rinse temperature. Ensure rinse arms spin freely and all nozzles are clear of debris.
- Inspect Main Control Board for Relay Issues: If all external components test correctly, the issue might stem from a faulty relay on the main control board that controls power to the booster heater. This requires advanced diagnostics and often involves replacing the control board. Contact Hobart Service or a qualified technician for this step.
Common Questions:
Q: What does Error 087 mean for my HOBART AM16 DISHWASHERS?
A: Error 087 on your HOBART AM16 DISHWASHERS indicates that the final rinse water temperature is below the required set point for effective sanitation, meaning the machine is not reaching the specified temperature to properly sanitize your wares.
Q: Why isn’t my HOBART AM16 DISHWASHERS reaching the correct rinse temperature?
A: Common causes include a malfunctioning booster heater element, a faulty temperature sensor/thermostat, insufficient incoming hot water supply, low water pressure, or issues with the main control board’s heating relays. Mineral buildup can also affect heating efficiency.
Q: Can I still use my dishwasher with Error 087?
A: While the machine may still wash, it cannot guarantee proper sanitization if the final rinse temperature is not met. Operating it with Error 087 is not recommended for commercial use, as it poses a health risk and fails to meet food safety standards.
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.