Hobart CL series conveyor dishwashers (CL44e, CL54e, CL64e, CLPS)
Rack conveyor dishwashers with a touch display. Most sensor faults switch the machine off but keep the display on; press Enter to acknowledge once the reading is back in range.
What it is: Conveyor dishwasher
Hobart CL series conveyor dishwashers (CL44e, CL54e, CL64e, CLPS) error codes
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| 001 / 002 | Booster temperature sensor shorted (reads 115 °C+) / open (reads 0 °C or less) | Thermistor, wiring or water in the connector | Check the thermistor and wiring; dielectric grease on wet connectors. Unplugging it should give 002. |
| 004 | Rinse temperature not reached | High limit tripped, thermistor loose, heaters, contactor, low water or fill valve stuck | Work through the booster heating circuit. |
| 006 / 007 | Wash tank temperature sensor shorted / open | Thermistor or wiring | As 001 / 002. |
| 015 | Booster pressure sensor fault | Sensor or wiring | Call service. |
| 016 / 017 | Wash tank pressure sensor fault | Sensor or wiring | Call service. |
| 018 | Wash tank level too high | Drain blocked | Clear the drain. |
| 020 | Tank fill time exceeded | Water off or drain lever open | Close the drain lever; check the water supply. |
| 033 / 140 / 141 | Booster fill time exceeded | Water off or drain lever open | Close the drain lever; check the water supply. |
| 081 / 082 | Final rinse temperature sensor fault | Sensor | Call service. |
| 085 | Wash tank over-temperature tripped | High limit | Call service. |
| 086 | Booster over-temperature tripped | High limit | Call service. |
| 089 | Booster contactor error | Contactor welded | Switch off the breaker, do not drain, call service. |
| 138 | Power rinse over-temperature tripped | High limit | Call service. |
| 160 | Wash tank temperature not reached | Heaters or contactor | Check tank heat. |
| 184 | Dirty water alert | Wash water due for change | Drain and refill. |
How to enter service / parameter mode
- Switch on and wait for the ready screen.
- Press MENU, highlight Login and press ENTER.
- Enter the service PIN (from the manual) with the arrow and ENTER buttons.
- Use Back to leave the menus.
Other useful key presses
| Task | How |
|---|---|
| Live sensor readings | Service menu → Diagnostics → Analog / Digital inputs and outputs. |
Notes
- This list covers the main codes; the manual has more for less common options.
For licensed technicians only. This equipment can involve mains voltage, high-voltage microwave circuits, gas and refrigerant. Isolate power (and gas) before opening panels, follow the manufacturer's manual and your local licensing rules (for example ARC refrigerant handling and electrical or gas licences). Wrong settings can spoil food or damage equipment. Check every value on the unit in front of you before changing it.
Based on: Hobart CL series service and parts manual. Always check the manual for your exact model and software version.
ServiceModes is not affiliated with Hobart or any other manufacturer. Written in our own words from the manufacturer's documentation.