Douglas Machines Pot and Pan Washer Error Code Er06: Door Open
Er06 means the door has not closed properly, and the cycle will not run until the door shuts completely. Open the door fully, check for pans or racks sticking out, then close it firmly until it latches. If Er06 stays with the door shut, call us.
Low: the machine is protecting you, and a door that is not latched is usually a simple, mechanical fix.
- Code
- Er06
- Maker
- Douglas Machines
- Equipment
- Pot & pan washers
- Applies to
- Digital touch pad 3125/5072 with PC board 3126/5071
What does Douglas Machines error code Er06 mean?
A pot and pan washer throws water at high pressure, so the control insists the door is fully closed before anything starts. A switch at the door tells the board whether it is shut, and if the signal says open, the cycle will not run and the display shows Er06. Most of the time the explanation is in plain sight: something is caught in the door opening, a rack is not pushed all the way in, or the door was shut without latching. A big stockpot with a handle that sticks out a half inch is enough. The less common case is a door switch that has worn or moved out of position, so the door is shut but the switch does not know it. A door seal or hinge that has worn can let the door sit just short of the switch. The cycle starts the moment the signal returns, which makes this one of the easiest codes to test: if the door closes and the code goes, the cause was mechanical. If the code stays with the door clearly shut, the switch or its wiring is the problem, and it should never be taped or held closed to get the machine running.
Affected models and control systems
Douglas Machines door-type pot, pan and utensil washers with the digital touch pad 3125 or 5072 and PC board 3126 or 5071.
Code numbers and their meaning can change between control generations. We match the full model and control before acting on a code.
What you may notice
- Er06 appears when a cycle is started
- The door looks shut but the machine acts as if it is open
- The cycle stops if the door is bumped
- Racks or pans stand slightly proud of the door
Possible causes
Listed in Douglas Machines's documentation
- Rack or pan sticking out into the door path
- Door not pushed fully shut
- Door switch worn or out of position
- Worn door seal or hinge
Other likely causes — what usually sits behind error code Er06 on this control. A technician confirms which one it is before any part is replaced.
- A door switch actuator bent from repeated slams so it just misses the switch
- Food debris packed into the latch area that keeps the door a few millimeters short of shut
Safe checks before calling for service
- Open the door fully and check for pans or racks sticking out.
- Close the door firmly until it latches.
- Start the cycle again.
- If Er06 stays with the door shut, call us. Do not tape or hold the door switch.
- Note whether the door drops or rubs when it closes.
How a technician diagnoses error code Er06
- Confirm Er06 and close the door by hand to see whether it clears.
- Inspect the rack path, the latch and the seal for obstruction and wear.
- Check hinge alignment and the gap at the switch.
- With power off and locked out, test the door switch and its wiring with a meter.
- Adjust or replace the switch or seal and confirm the cycle starts and runs with the door shut.
- The door switch is a safety device on a machine that sprays hot water at pressure.
- A bent actuator, a worn seal and a failed switch all give Er06, so each needs a check with a meter.
- Taping or holding the switch removes the protection.
Technical reference
- Document
- Douglas Machines Troubleshooting Guide (2024 edition), Touch Pad Error Code Value Table p.25
- Edition
- 2024 edition
- Models / control
- Digital touch pad 3125/5072 with PC board 3126/5071
- Section
- Troubleshooting - Error Code Value Table (PGM LED) printed pp. 14-15; Touch Pad Error Code Value Table printed p. 26
- Checked
- October 2026
We use the maker's document to read the code and do not reproduce it. Always confirm the complete model and control before applying these steps.
Related Douglas Machines pot & pan washer error codes
The door is shut. Why does it say Er06?
The switch may not be reaching the door, or something is holding the door a little open.
Can I hold the switch down?
No. Never tape or hold the door switch, because the machine sprays water at pressure.
Will the cycle resume on its own?
The machine will run once the door signals closed, so closing it properly is the first test.
Need help with Douglas Machines error code Er06?
A technician confirms the cause on site and gives you the price in writing before any work starts.