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The bottom of an empty stainless dishwasher tub with the lower rack removed, showing the curved heating element loop and the round filter cover.

Dishwasher
Not Heating Water

Dishes and the tub are cool at the end of the cycle, and grease stays on plates.

(844) 430-4286

Mon–Sat, 8am–8pm

  • 5 checks before you book
  • 5 questions that narrow it
  • 5 causes, cheapest first

Book a visit

Three short steps, about a minute.

or call (844) 430-4286

What it
usually means.

A dishwasher starts with the water from your water heater and then raises it with its own element. If the incoming water is cool or the element does nothing, detergent struggles, grease stays, and dishes come out cool and wet. Some machines also stall their cycle while they wait for a temperature they never reach. The water heater setting and the kitchen faucet are the first things to check.

The heating element loop runs across the floor of an empty stainless dishwasher tub in a US home kitchen. The 5 causes, cheapest first

Answer these first

01

Is the water at the kitchen faucet hot within a minute of running it?
02

Are the dishes and the inside of the door cool when the cycle ends?
03

Is the cycle also taking much longer than it used to?
04

Is there a visible heating element loop at the bottom of the tub?
05

Did the breaker trip at any point recently?

Check these
before you book.

Dishwasher not heating water: 5 checks, and none of them costs anything.

01

Run the kitchen faucet hot before starting, and check the water heater setting.

02

Choose a cycle with high temperature or sanitize to confirm the element is being called for.

03

Touch a mug on the top rack right after the cycle; it should be hot, not warm.

Also worth checking

  • Look at the element loop for visible breaks or blistered spots once the tub is cool.
  • Note whether the cycle stalls on the countdown; it helps narrow the part.

How soon does it need a visit?

Not urgent. Hand-wash greasy items until a visit; if the breaker has also been tripping, turn it off and keep the machine unpowered.

The causes,
cheapest first.

5 things dishwasher not heating water turns out to be, from water heater set too low or far away to relay on the control board.

The cost guide
  1. 01 no repair

    Water heater set too low or far away

    A water heater below 120°F, or a long pipe run that fills the machine with cold water, starts every cycle at a disadvantage.

    No repair: check it yourself
  2. 02 low to moderate

    Open heating element

    An element that has burned out draws no current and stays cold. It is the usual cause when the faucet is hot and the dishes are not.

    Fixed by heating and drying repair
  3. 03 low

    High-limit thermostat open

    A safety thermostat cuts power to the element if it overheats. Once it opens, it may not close again.

    Fixed by heating and drying repair
  4. 04 low

    Temperature sensor out of range

    A sensor that reads high tells the control the water is already hot, so the element never switches on.

    Fixed by controls and sensors
  5. 05 moderate

    Relay on the control board

    The board powers the element through a relay. A burnt contact leaves the element and its thermostat fine but unpowered.

    Fixed by controls and sensors
  6. What it costs

    Every repair on the site's cost scale, side by side

    Open the cost guide

The makes
it happens on.

27 makes on this site; dishwasher not heating water can show up on any of them. Each mark opens that make's own page.

All 27 brands

Dishwasher Not Heating Water,
where we come out.

9 metros, each with its own page.

All service areas

Tampa BayFL · 31 areas

OrlandoFL · 30 areas

Miami / South FloridaFL · 47 areas

New York MetroNY · 75 areas

HoustonTX · 36 areas

ChicagoIL · 50 areas

Los AngelesCA · 95 areas

San DiegoCA · 31 areas

San Francisco Bay AreaCA · 74 areas

A family unloading clean plates from an open dishwasher together in a bright contemporary kitchen, a child handing a plate to a parent
For the heart of your home.

Questions about
dishwasher not heating water.

My dishwasher has no visible heating element. Does it heat at all?
Many do, with a heater hidden under the tub or built into the pump housing. Those machines heat the water, not the air, and rely on condensation to dry. A hidden heater can fail just like an exposed loop.
What temperature should the water be?
About 120°F at the faucet is typical, and the machine raises it further during the wash. A sanitize option aims considerably higher for the final rinse.
Is it safe to run the dishwasher without heat for a while?
Yes, though results will be poorer and dishes will not dry well. Stop using it if the breaker trips or if you notice a burning smell.
Could this be connected to the dishes not drying?
Almost always. The same heat that cleans grease also dries the load at the end, so a machine that stopped heating usually stopped drying at the same time.

Back to your everyday

Still seeing dishwasher not heating water?

Book with what you checked above — 5 answers save the technician the first part of the visit.

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(844) 430-4286 Schedule a repair