Denys Hargrove Key Takeaways
- A failed drain pump is a replaceable assembly, so repair is the usual answer for a dishwasher that is otherwise sound.
- A drain hose without a high loop, a stuck solenoid or a board relay fault can look like a failed pump.
- Look under the sink for the high loop and listen during fill before buying a pump.
- Do not keep running cycles with standing water: the E24 page says the dishwasher cannot fill properly.
- Replacement of the dishwasher is for a pump fault combined with board failure, age or repeated service calls.
The Bottom Line
Check the drain hose loop and listen during fill. If standing water returns, book a diagnosis that names the pump, hose or board, then weigh the estimate against the machine age.
For a Dacor dishwasher drain pump fix or replace choice, the pump is nearly always the part to replace and the dishwasher the part to keep. A drain pump is a self-contained assembly under the tub, and when it fails the repair is a pump swap, not a rebuild of the machine. What makes the decision interesting is that several cheaper things look like a failed pump: a drain hose installed without a high loop, a clogged path and a relay on the board that never lets go. This guide covers the pump and its two codes on this site, E24 and E25, and leaves the dishwasher as a whole to our repair or replace guide for the dishwasher.
| What the technician finds | Fix the part | Think about replacing the dishwasher |
|---|---|---|
| Drain hose routed without a high loop | Yes, reroute the hose | No |
| Pump motor tests open on a meter | Yes, replace the pump | Only if the machine is very old |
| Impeller cracked or broken | Yes, replace the pump assembly | No |
| Pump housing cracked by a foreign object | Yes, replace the pump | No, but check what else was hit |
| Board relay keeps the pump running | Board repair | If other board faults have appeared |
What the Two Codes Point To
Both codes concern the drain side, and each has its own wording on the site. E24 is listed as a drain pump or drain failure, and the page says it is the most searched Dacor dishwasher code. E25 is listed as a blocked drain pump. The causes our pages name for the drain side are these.
- A drain hose without a high loop — when the hose runs downhill from the dishwasher to the disposal, gravity siphons water out.
- A failed check valve or a stuck drain solenoid — water leaves as fast as it enters.
- A board relay fault — the relay that controls the pump fails closed and keeps it energized.
- A broken impeller or cracked pump housing — the pump itself is damaged and must be replaced.
Only the last is the pump. That is why the order matters: confirm the pump has failed before you buy one.
Is It the Pump or the Drain Hose?
Look under the sink first. The E24 page says to verify the drain hose loops up near the underside of the countertop before going down to the disposal or drain, and that the top of the loop should be at least as high as the flood level of the sink. A missing high loop is a free fix if you can reach it, and it is the one cause the page says installing it resolves permanently.
Then listen. Start a new cycle and note the sounds in the first minutes of fill.
- Listen during fill. You should hear only the fill valve hissing. The page says a drain pump humming at the same time suggests a board relay fault.
- Check the standing water after a cycle, and whether it is there every time regardless of a reset.
- Note a high-pitched whine from the pump with no change in the water level, which the page lists as a stop sign.
Is It Safe to Keep Using the Dishwasher With a Drain Fault?
No. The E24 page says the dishwasher cannot fill properly while the fault is active, and that running it wastes water and energy with no cleaning action, so the drain path should be fixed before the next use. Standing water that returns after every cycle, regardless of a reset, is the sign that a reset is not the answer.
Stop and book a visit if the pump hums loudly on every drain attempt, since the E25 page says that can mean a broken impeller. Do not run cycles to see whether it clears, because each one adds water to a machine that may not be able to remove it.
When Does the Pump Need Replacing?
When a technician has found one of three things, all of which our pages list as reasons to call. The pump motor tests open on a multimeter. The impeller is cracked, missing blades or broken, so the full pump assembly is replaced. Or the pump body is cracked from a hard foreign object.
A fourth reason is installation. If the drain hose routing requires pulling the unit out of the cabinet to correct, the job is bigger than it sounds, and our E24 page says so.
Owners often ask whether to replace the pump themselves, since the part is not expensive. The answer from our pages is that replacing it needs panels and wiring opened, and that confirming it has failed needs a meter. A wrong guess buys a part that does not fix the fault, and the diagnosis is the part that costs time. If you do replace a pump, switch off the power and the water supply first, and make sure the new unit matches your model number.
A technician sorts these out in a fixed order, from the cheapest cause to the dearest, and it helps to know the order so that you can follow the diagnosis.
- Hose routing first, because a missing loop explains a fill-and-drain pattern without any faulty part.
- The pump motor next, tested on a meter for an open circuit.
- The impeller and housing, inspected for cracks, missing blades or impact damage.
- The control board relay last, once the pump itself has been cleared.
Anything that points to the board changes the estimate, so ask for the finding to be written down before you approve the work.
When the Dishwasher Itself Is the Question
Seldom for the pump. Our parent guide says pump, motor and spray arm failures are economical to fix at any age, and that repair wins for most dishwashers under ten years old. The picture changes if the pump fails alongside the control board on an older machine, if you have had three or more service calls in a year, or if a tub crack appears. A matching custom panel is a good reason to keep the unit you have.
- A single, diagnosed pump fault on a sound machine is a repair.
- Pump and board together on a machine past about eleven years is worth a serious comparison.
- Repeated floods after completed repairs point to a deeper problem.
What a Pump Repair Costs and Involves
Our E25 page puts a repair from $150, with a professional visit of 30 to 60 minutes. The price is a starting figure, and the final price is confirmed after diagnosis on site, with a written estimate before work begins. Ask the technician to say whether the fault was the hose, the pump or the board.
The dishwasher repair service covers pumps, hoses and boards, and our guide to a Dacor dishwasher not draining covers the symptoms from the owner's side. You can book a visit or send us the model number and what the dishwasher does at the drain stage.