Error Code
medium
Hobart AM16 – Not Dispensing Chemicals
On your HOBART AM16 DISHWASHERS unit, chemicals not dispensing typically indicates issues…
Hobart AM16 - Error 049: Communication Between The Controls Has Been Interrupted
Critical / Stop Operation
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 049 indicates a critical loss of communication between the main control board and the touchscreen display. This interruption prevents user interaction and proper program execution, rendering the machine inoperable. Persistent issues typically point to a wiring fault, connector problem, or a failure in either the control board or the display module itself.
Technical Details
Repair Steps:
- Perform a Power Cycle: Turn off the dishwasher’s main power switch and unplug it from the wall outlet. Wait at least 5 minutes to allow all residual power to dissipate. Plug the unit back in and power it on. Observe if the communication restores.
- Inspect Wiring and Connections: Carefully access the internal components, focusing on the wiring harness connecting the main control board to the touchscreen display. Look for any visible damage, pinches, cuts, or loose connections. Ensure all connectors are fully seated and free of corrosion or debris. Pay close attention to the ribbon cable connecting the display.
- Test the Touchscreen Display Module: Visually inspect the touchscreen display for any physical damage, cracks, or signs of liquid ingress. If available, test the display in a known-good unit or connect a known-good display to your unit to isolate whether the issue is with the display itself. Look for flickering, blank screens, or unresponsiveness.
- Examine the Main Control Board: With the power disconnected, visually inspect the main control board for any signs of damage, such as burnt components, swollen capacitors, or scorch marks. Pay attention to the communication ports and traces. A damaged board can interrupt data flow.
- Check Cable Continuity: Using a multimeter, test the continuity of the communication cable or ribbon cable between the main control board and the display. Ensure there are no breaks in the individual wires or pins, which would prevent data transmission. Replace the cable if continuity issues are found.
- Replace Faulty Components: If all previous steps fail to resolve the 049 error, the issue is likely a component failure. Start by replacing the touchscreen display module, as it is often the more exposed component. If the error persists, the next step is to replace the main control board. Always use genuine HOBART replacement parts.
Common Questions:
Q: What does HOBART AM16 DISHWASHERS error code 049 signify?
A: Error code 049 on your HOBART AM16 DISHWASHERS indicates a loss of critical communication between the main control board and the touchscreen display. This prevents the machine from being operated or monitored correctly.
Q: What are the primary causes of a 049 communication error?
A: The most common causes include loose or damaged wiring and connectors between the control board and display, a faulty touchscreen display module, or a malfunctioning main control board itself.
Q: Is it safe to operate the dishwasher with error code 049?
A: No, it is not safe or practically possible to operate the dishwasher with a 049 error. The loss of communication means you cannot control wash cycles, access settings, or monitor the machine’s status, rendering it effectively inoperable.
When to call a technician
For this error, we recommend calling a certified technician. Do not continue operation or attempt repair yourself.
- Equipment shows a critical or stop-operation fault.
- You smell gas, burning, or see smoke or sparks.
- Error returns after following the steps above.
- You are not trained to work on this equipment.
- Warranty or safety could be affected by DIY repair.