Hobart Commercial Dishwasher Error Code LOW RINSE TEMP: Water Input
LOW RINSE TEMP / Check Water Input on a Hobart LXe dishwasher means the low rinse temperature has happened on 10 consecutive cycles. The machine continues to run cycles. Check the water input.
Medium: a persistent cool rinse over many cycles, with the machine still running.
- Code
- LOW RINSE TEMP / Check Water Input
- Maker
- Hobart
- Equipment
- Dish machines
- Applies to
- LXe Series
What does Hobart LOW RINSE TEMP / Check Water Input mean?
This is the next stage of the low rinse warning. After the control has seen a low rinse temperature through repeated cycles, the plain message changes to LOW RINSE TEMP / Check Water Input once it has happened on 10 consecutive cycles. The change tells the operator that this is not a one-off. Something about the water coming into the machine, its temperature or its volume, has stayed wrong across many cycles. The machine continues to run cycles, so work can go on, but the sanitizing quality of the rinse is in doubt. The manual's action is short: check the water input. That means the hot water supply line, valve and strainer, and whether the building's water heater is keeping up with demand. If the supply is good, the problem passes to the machine's heating and temperature sensing.
Affected models and control systems
Hobart LXe series: LXeC (ML-130191), LXeH (ML-130192), LXePR (ML-130193) and LXeR (ML-130194).
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
- LOW RINSE TEMP / Check Water Input on the display
- Dishes coming out wet or less hot after the rinse
- Message staying on across many cycles
Possible causes
Likely causes — what usually sits behind LOW RINSE TEMP / Check Water Input on this control. A technician confirms which one it is before any part is replaced.
- Low rinse temperature on 10 consecutive cycles
- Hot water supply valve closed or throttled
- Clogged inlet strainer cutting the flow
- Building water heater not keeping up
- Rinse heating part not working on a booster machine
Safe checks before calling for service
- Check that the hot water valve is fully open and the line is not kinked.
- Compare water at a nearby tap with the machine's expectations.
- Note whether the message started after a plumbing change.
- Tell us how many cycles it has run with the message.
How a technician diagnoses LOW RINSE TEMP / Check Water Input
- Measure the inlet temperature and flow at the machine.
- Clean the line strainer and verify the inlet valve opens.
- Check the rinse temperature probe reading against a thermometer.
- On booster models, test the booster heater and its control.
- Correct the water input and confirm the message clears after a run of cycles.
- Working on the water inlet and heater circuits involves pressurized hot water and live 208-240 V wiring.
- Tracing why many cycles were cool needs measured temperatures at several points.
How LOW RINSE TEMP / Check Water Input differs from similar codes
This is the escalated form of LOW RINSE TEMP after 10 consecutive cycles, so it points to a persistent supply or heating issue.
Technical reference
- Maker documentation
- Hobart owner support
- Edition
- FORM 38435 (March 2014)
- Models / control
- LXe Series
- Section
- DIAGNOSTIC/ERROR MESSAGES (page 27)
- 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 Hobart dish machine error codes
How is this different from LOW RINSE TEMP alone?
It appears after the problem has repeated for 10 consecutive cycles.
Will it clear itself?
It should stop once the rinse temperature returns to normal, but fix the supply first.
Is the dishwasher safe to use?
It keeps running cycles, but a cool final rinse may not sanitize, so correct it promptly.
Need help with Hobart LOW RINSE TEMP / Check Water Input?
A technician confirms the cause on site and gives you the price in writing before any work starts.