Error Code
medium
Hobart LXn/LXGn – LXn/LXGn Will Not Drain
On your HOBART LXn/LXGn SERIES DISHWASHERS unit, a "Machine Will Not Drain"…
Hobart LXn/LXGn - Error 001: Booster Temperature Error
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 HOBART LXn/LXGn SERIES DISHWASHERS unit, error code 001 indicates a critical booster over-temperature condition, exceeding 239°F (115°C). This safety measure forces the machine to drain and power off immediately. While an initial reset may clear transient issues, persistent errors necessitate professional diagnosis to address potential component failures.
Technical Details
Repair Steps:
- Initial Reset: Attempt to clear the error by pressing and holding the power button for 5 seconds as prompted. The machine will drain and power off, then try restarting it.
- Water Supply Verification: Confirm the dishwasher has an adequate and consistent water supply to the booster. Low water pressure, a clogged fill line, or a faulty fill valve can cause the booster to run dry and overheat rapidly.
- High-Limit Thermostat Inspection: Locate and inspect the booster heater’s high-limit thermostat. This critical safety device is designed to trip and cut power in an over-temperature event. If tripped, it may have a manual reset button (typically red). If it trips again shortly after reset, a persistent issue with heating or water supply exists.
- Temperature Sensor Accuracy: Check the temperature sensor (RTD or thermistor) located within the booster tank. A faulty sensor could provide an inaccurate high-temperature reading to the control board, even if the actual temperature is within limits. This requires testing resistance values or comparing readings with a calibrated thermometer.
- Contactor/SSR Assessment: If the booster heater’s contactor or Solid-State Relay (SSR) is stuck in a closed (energized) position, it will continuously heat the water regardless of the control board’s command. This requires a qualified technician to safely test for continuity and replace the component if it’s welded or stuck.
- Control Board Diagnostics: A malfunctioning main control board, specifically the circuitry driving the booster heater’s contactor or SSR, can also cause constant energization. This advanced diagnostic step should only be performed by a Hobart-certified technician.
Common Questions:
Q: What does HOBART LXn/LXGn Error 001 signify?
A: Error 001 on your HOBART LXn/LXGn dishwasher means the booster heater has reached a critically high temperature of 239°F (115°C) or greater, triggering a safety shutdown to prevent damage or hazards.
Q: Why is my dishwasher’s booster getting excessively hot?
A: Common causes include a faulty temperature sensor, a stuck heating contactor or relay, a tripped high-limit thermostat, or insufficient water supply to the booster element causing dry-firing.
Q: Can I resolve this booster temperature error myself?
A: You can attempt the initial power button reset. However, if the error persists, it indicates a serious component failure that requires an experienced commercial kitchen technician due to potential electrical and safety hazards.
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.