Error Code
medium
Hobart AM16 – Not Dispensing Chemicals
On your HOBART AM16 DISHWASHERS unit, chemicals not dispensing typically indicates issues…
Hobart AM16 - Error 039: Fill Cycle Interrupted - Close Door
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 039 indicates the wash chamber door was opened during the critical fill cycle. Simply ensure the door is fully closed and securely latched. The dishwasher should then automatically resume its fill process. If the error persists, it may signal an issue with the door interlock switch or latch mechanism.
Technical Details
Repair Steps:
- Verify Door Closure: The primary cause of error 039 is an open or improperly latched door during the fill cycle. Firmly close the dishwasher door until it clicks into place, ensuring it is fully seated and securely latched. The fill cycle should automatically resume.
- Check for Obstructions: Inspect the door frame and the wash chamber for any items (utensils, trays, racks) that might be preventing the door from closing completely. Remove any obstructions and try closing the door again.
- Inspect Door Gasket/Seal: Examine the rubber door gasket (seal) around the perimeter of the wash chamber. Look for any tears, cracks, deformation, or debris that could be preventing a tight seal and full closure. A compromised gasket can sometimes interfere with the door’s ability to activate the interlock switch.
- Examine Door Latch Mechanism: Carefully inspect the door latch assembly located on the door and the corresponding strike plate on the dishwasher frame. Look for signs of wear, damage, bending, or misalignment that could prevent the latch from fully engaging and activating the door interlock switch. Ensure the latch moves freely.
- Test Door Interlock Switch: The door interlock switch is a crucial safety component that tells the control board when the door is closed. If accessible and you are comfortable with electrical testing (DANGER: Disconnect power before attempting), you can test the continuity of this switch. A faulty switch may not register the door as closed even when it is, causing error 039 to persist. If the switch appears damaged or doesn’t show continuity when the door is closed, it likely needs replacement.
- Power Cycle the Dishwasher: Sometimes, a temporary control glitch can cause misreadings. Turn off the dishwasher at the main power switch or circuit breaker for 5-10 minutes, then restore power. This can reset the control board and potentially clear transient errors.
- Contact Hobart Service: If you have performed all the above checks and the error 039 persists, it indicates a more complex internal fault, likely with the door interlock switch, the control board, or associated wiring. Contact Hobart Service for professional diagnosis and repair, providing them with the error code and the troubleshooting steps you have already taken.
Common Questions:
Q: Why did my HOBART AM16 DISHWASHERS show error code 039?
A: Error code 039 typically indicates that the dishwasher’s door was detected as open or not properly closed during its water fill cycle. This is a safety measure to prevent water from spilling out.
Q: What should I do immediately when I see error 039 on my AM16?
A: Your first step should be to firmly close the dishwasher door, ensuring it is securely latched. The machine is designed to resume its fill cycle automatically once the door is properly shut.
Q: What if error 039 persists even after closing the door properly?
A: If the error persists, it suggests a potential mechanical or electrical issue. This could involve a faulty door latch, a damaged door gasket preventing full closure, or a malfunctioning door interlock switch that isn’t registering the door as closed. In such cases, further inspection or professional service is recommended.
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.