Champion Dishwasher Rinse Display Tank-Empty Symbol
The tank-empty indication on the rinse display of a Champion UH-series dishwasher means the booster tank is empty while the booster heater is on. The booster may be extremely hot, so do not touch it. Check that it is filling with water.
High: the booster heater is on with no water, which can overheat the booster and cause burns.
- Code
- Rinse display tank-empty indication
- Maker
- Champion
- Equipment
- Dish machines
- Applies to
- Same
What does Champion Rinse display tank-empty indication mean?
On the rinse side, the digital board shows a special tank-empty pattern in place of the booster temperature when the booster has no water. The manual draws the pattern as an icon, so the exact segments are not machine-readable here. The warning exists because the booster heater is still on and has no water to heat, and the booster may be extremely hot, which the manual marks with a CAUTION. A heating element needs water around it to carry the heat away. Without it, the element and the tank can overheat quickly. The manual's instruction is to avoid touching the booster and to check that it fills. The causes are usually on the water side, such as a closed supply valve or a blocked fill path, but a technician must confirm that before the heater is allowed to run again.
Affected models and control systems
UH130, UH130B, UH230, UH230B and UH330B M4 series dishwashers with the digital temperature display board; see the Digital Temperature Display Codes, printed pp. 54-57.
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
- Tank-empty pattern in place of the rinse temperature
- No hot rinse water at the end of the cycle
- Booster area very hot
- Fill sounds absent or weak
Possible causes
Likely causes — what usually sits behind Rinse display tank-empty indication on this control. A technician confirms which one it is before any part is replaced.
- Booster tank empty with the booster heater on
- Water supply valve to the machine closed
- A booster fill line or valve that is blocked
- Water pressure too low to fill the booster
- A drained booster after a leak at a fitting
Safe checks before calling for service
- Do not touch the booster; the manual says it may be extremely hot.
- Check that the water supply valve to the machine is fully open.
- Look for water on the floor near the booster that might point to a leak.
- Switch the machine off if water does not reach the booster, and record what the rinse display showed.
How a technician diagnoses Rinse display tank-empty indication
- Confirm the booster is empty rather than a false indication.
- Check water supply pressure and the valve feeding the booster.
- Inspect the fill path for blockage and the fittings for leaks.
- Verify that the booster heater stays off while empty after the fix, and refill.
- Run a cycle and confirm that the rinse display shows a normal temperature.
- A dry heater and an extremely hot booster are burn and damage hazards.
- Fill and heater checks involve live wiring and valve coils behind the panels.
- Reading the tank-empty icon correctly depends on the manual and the board generation.
How Rinse display tank-empty indication differs from similar codes
This is the rinse-side tank-empty pattern for the booster; the wash side has its own pattern for an empty wash tank.
Technical reference
- Maker documentation
- Champion owner support
- Edition
- Manual P/N 115440 rev. N4
- Models / control
- Same
- Section
- Digital Temperature Display Codes, printed pp. 54-57
- 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 Champion dish machine error codes
Is the booster dangerous when empty?
Yes. The heater is on without water, and the manual warns it may be extremely hot. Keep clear.
What should I check first?
Check the water supply valve to the machine. If water reaches the machine and the booster stays empty, call service.
Does this affect the wash side?
The wash tank is separate. It can read normally while the booster shows its own tank-empty pattern.
Need help with Champion Rinse display tank-empty indication?
A technician confirms the cause on site and gives you the price in writing before any work starts.