Why Your Dishwasher Won't Start and What to Check First

Quick answer: five checks when your dishwasher won't start

Run these in order. Stop the moment the machine hums or fills.

1. Shut the door firmly until it clicks.
2. Turn off the child lock.
3. Cancel any delay start.
4. Confirm the plug, the GFCI outlet and the breaker.
5. Open the water valve under the sink.

Whirlpool's no-start guide lists the same checks. If none of the five helps, the fault is a part.

Why a dishwasher won't turn on: the likely causes, ranked

1. The door is not fully latched

The door must latch for the whole cycle, per iFixit. Whirlpool adds that a lower rack installed backward can keep the door from latching. Bosch says a door that only looks closed will not start for safety reasons.

2. Child lock or key lock

A lit lock icon means the buttons are disabled. On Whirlpool machines, pressing one flashes the light three times. On Bosch, hold the lock button for 3 to 5 seconds until the beep.

3. Delay start

The cycle waits for its set time. Whirlpool says to press CANCEL/DRAIN to clear it.

4. Power

A tripped breaker, a tripped GFCI outlet or a loose plug leaves the display dark. One repair shop notes that 15-amp kitchen circuits in older homes trip more often.

5. Water supply off

If the machine detects no water, the cycle will not start, per Whirlpool.

6. A failed door switch

When the latch looks fine but the machine stays silent, the dishwasher door latch switch may have failed. It should read 0 to 1 ohm on a meter, per iFixit.

7. Thermal fuse, touchpad, timer or board

These sit behind the panels, so they are technician work.

Safe checks when your dishwasher has power but won't start

Turn the breaker off before step 6 and keep your hands dry.

1. Press the dishwasher won't start button, meaning the Start key, for two to five seconds after closing the door. That is because some need a hold.
2. Push the door shut again and listen for the latch click.
3. Check that the lower rack sits in its track, not backward.
4. Turn off the lock using the owner's manual or the lock button.
5. Press CANCEL/DRAIN to clear any delay start.
6. Press Cancel, then unplug the machine or switch off its breaker for about a minute, and restore power.
7. Open the water valve under the sink all the way.

If the display lights, run a short cycle.

Stop signs: when a dishwasher that won't start needs a technician now

• The breaker trips again right after you reset it. Stop resetting and have the circuit checked.
• You smell burning or see scorch marks near the control panel.
• The machine hums but does not run.
• Water sits on the floor or in the cabinet, or the display works but nothing responds after the reset.

The CPSC recalled about 1.7 million dishwashers in 2010 after heating element failures. So a burning smell is a real stop sign. What a visit covers is laid out on the dishwasher service page.

What a technician checks when the checks above fail

With power off, a technician tests with a meter. iFixit gives target readings. The door switch, thermal fuse and thermostat should show 0 to 1 ohm. The heating element should show 0 to 50 ohms. The drain pump should show 15 to 40 ohms. A blown thermal fuse is a symptom. So the thermostat and element are tested before a new fuse goes in.

Then come the touchpad, timer and board, checked for burn marks or shorted parts.

If the dishwasher has power but won't start even then, the cause sits inside the machine.

Repair or replace a dishwasher that won't start

Repair makes sense for a latch, switch, fuse, touchpad or pump. It is a closer call when the board is the last suspect on an older machine. One GE repair guide says a new machine may be the better choice after every other step fails. A free estimate should tell you which side you are on.

Preventing a dishwasher that won't start again

• Load the bottom rack so the door still closes with no resistance.
• Wipe the panel with a barely damp cloth.
• Check the breaker and the valve after any under-sink work.

Humid air is hard on touchpads, per one repair shop. Corpus Christi averages 76.1 percent relative humidity, per Wikipedia.

When your Corpus Christi TX dishwasher not starting problem survives the checks, call

Washing Machine Repair Corpus Christi serves Corpus Christi TX with local technicians who test in the same order as this guide. A person answers (361) 246-1409, and the estimate is free.

For the full service, see dishwasher repair in Corpus Christi. For everything else Washing Machine Repair Corpus Christi fixes, start at the home page. If the machine lives in a rental, tell the landlord too.

Sources and further reading

• en.wikipedia.org: Corpus christi, texas
• foxnews.com: Cpsc maytag recalling almost 2 million dishwashers over fire