Filter first, then the plumbing
On a Hisense dishwasher, standing water usually means the filter in the tub floor - it twists out by hand and is meant to be rinsed regularly. On a machine that has never drained properly since it was installed, look instead at the disposer connection: a new disposer arrives with its dishwasher inlet blanked off. The pump comes last, and on this brand that matters, because a part ordered on a guess means weeks of waiting.
What you are seeing
- Water covers the floor of the tub at the end of every cycle.
- The machine has never drained properly since it was fitted.
- A rattle or grinding sound when the machine tries to drain.
- Dirty water appears in the tub between cycles.
- Not this fault: A small pool of clean water in the sump is normal.
- Not this fault: Water on the floor rather than in the tub is a leak, and a different page.
Most likely causes, in order
- Tub filter clogged — Why ranked: First because it is the commonest cause on a machine that used to drain, it is reachable by hand, and it is free to correct.
- Disposer knockout plug never removed — Why ranked: Second, and first on a recent install: the machine has no route out at all, and no part will change that.
- Drain hose kinked, or with no high loop — Why ranked: Ranked here because it explains water siphoning back into a tub that had already emptied.
- Something hard jammed in the drain pump — Why ranked: It announces itself with a rattle or a grind and will damage the pump if the machine keeps running.
- Drain pump failed — Why ranked: Last, and deliberately so on this brand: the part comes through the manufacturer and a wrong guess is expensive in time.
What to check, in order
- Ask whether the machine has ever drained properly since installation. — Because: A never-worked answer points straight at rank two and skips the rest.
- Twist out the tub filter and look at what is in it. — Because: Rank one is the commonest cause on a machine that used to work.
- Follow the drain hose under the sink and look for a kink or a missing high loop. — Because: Rank three is visible and explains water that returns after draining.
- Listen during the drain for a rattle or grind. — Because: Rank four is identified by sound alone, before any panel comes off.
Checks you can do safely
- Bail the standing water out with a jug and a sponge until the sump is nearly dry. — N: 1 — Tools: Jug, sponge, towels — Time: moderate
- Twist out the filter, rinse it under a tap and clear the sump opening of debris by hand. — N: 2 — Tools: Gloves — Time: moderate
- Look under the sink and confirm the drain hose rises into a high loop or an air gap and is not kinked. — N: 3 — Tools: Torch — Time: moderate
- If a disposer was fitted recently, check with the installer whether the inlet plug was removed. — N: 4 — Tools: None — Time: quick
- Stop rule: Stop here. Removing the pump cover, disconnecting the drain line or clearing the disposer inlet is plumbing or service work.
Before you reach into the tub
Safety
Switch off the dishwasher breaker before reaching into the sump, and never put a hand into a disposer. A capacitor can hold a charge after the power is off. The water in a tub can still be hot at the end of a cycle. Broken glass in the sump is common; use gloves and a torch, not bare fingers. Never run the machine to test while the pump cover is off.
When this becomes a service call
The machine has never drained since installation. Water stays with the filter clean and the hose confirmed clear. A rattle or grind comes from the pump. A part is needed - order only against a confirmed diagnosis on this brand.
Nearest pages
What this page does not cover
This is generalized information for Hisense dishwashers as a group. It does not name filter designs by model, decode codes, or name parts. Where a family- or model-specific page exists it supersedes this one.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
