Possible Causes

Clogged Hisense drain filter, Blocked drain hose or air gap, Weak drain pump, Improper drain hose installation height

How to Fix / Troubleshooting

Safety first: Disconnect power before working on the drain system.

1. Clean filters: Remove and thoroughly clean the Hisense filter assembly to ensure water can reach the drain pump.
2. Check drain hose: Inspect the hose under the sink for kinks or clogs. Detach from the sink or disposer and flush with hot water.
3. Inspect air gap (if fitted): Remove the air gap cap on the sink and clean out any debris.
4. Test drain pump: Run a drain or cancel cycle and listen. If the pump is weak or noisy, access it from below and check for obstructions. Replace the Hisense drain pump if performance is poor.
5. Verify hose height: Ensure the drain hose is installed at the correct height per Hisense instructions to prevent backflow.