Error Code
high
Hobart LXe – LXe Will Not Drain
On your LXe SERIES DISHWASHERS unit, a "machine will not drain" issue…
Hobart LXe - Error DOOR OPEN
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 LXe SERIES DISHWASHERS unit, a DOOR OPEN error indicates that the wash chamber door is not properly latched or detected as closed. This prevents the wash cycle from initiating. Secure the door, then inspect the door interlock switch for proper functionality and alignment.
Technical Details
Repair Steps:
- Verify the Door Closure: Ensure the dishwasher door is completely and securely closed. Check for any obstructions (e.g., dish racks, utensils) preventing the door from fully closing.
- Inspect the Door Gasket: Examine the door gasket (seal) for any signs of damage, wear, or misalignment. A compromised gasket can prevent a tight seal and proper door switch engagement. Clean any food debris or residue.
- Check the Door Interlock Switch: Locate the door interlock switch(es), typically situated near the door latch. Manually actuate the switch(es) to feel for proper mechanical movement. Inspect wiring for disconnections or corrosion. With power disconnected, use a multimeter to test the continuity; it should show continuity when actuated (closed position). If faulty, replace the door interlock switch.
- Examine the Door Latch Assembly: Inspect the door latch mechanism on both the door and the machine body for wear, bending, or damage. A misaligned or faulty latch can prevent the door from engaging the interlock switch correctly. Lubricate if stiff.
- Check Control Board Connections: With the unit powered off, access the main control board. Locate the wiring harness connecting to the door switch and ensure it is securely plugged into the control board. Inspect the board for visible damage.
- Test Door Alignment: Check the door’s alignment. If it’s sagging, the door hinges might need adjustment or replacement to ensure proper closure and switch engagement.
- Reset the Dishwasher: Turn off the main power to the dishwasher for 5-10 minutes, then restore power to see if the error clears. This can resolve minor control board glitches.
Common Questions:
Q: Why does my HOBART LXe SERIES DISHWASHERS show “DOOR OPEN” even when it’s closed?
A: This usually indicates an issue with the door’s mechanical closure or the door interlock switch. It might be slightly ajar, obstructed, or the switch itself could be faulty or misaligned, preventing the machine from detecting the door as fully closed.
Q: Can I bypass the door switch on my HOBART LXe SERIES DISHWASHERS?
A: No, bypassing the door interlock switch is strongly discouraged and unsafe. This switch is a critical safety feature designed to prevent injury from moving parts and hot water during operation. Always repair or replace a faulty switch.
Q: What is the average lifespan of a door interlock switch on a commercial dishwasher?
A: The lifespan of a door interlock switch varies greatly depending on usage and environment, but they are wear items. In a high-volume commercial setting, they may need replacement every few years due to constant mechanical actuation and exposure to moisture. Regular inspection 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.