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The open lower cabinet beside a new dishwasher in a home kitchen, the dishwasher's drain hose rising in a high loop and clipped to the underside of the counter, a braided supply line running to a quarter-turn valve, a folded towel on the cabinet floor, nobody in the frame.

ZLINE E1: the dish care machine's fill is too slow because of the water supply

ZLINE's own dishwasher troubleshooting table lists E1 with three possible causes, all on the supply side: the faucet is not opened, the water intake is restricted, or the water pressure is too low, none of which point to a part inside the dishwasher.

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Mon–Sat, 8am–8pm

  • Water supply and drain
  • Water supply and shutoff connection
  • Source: ZLINE

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Three short steps, about a minute.

or call (844) 638-8309

What E1
actually means.

ZLINE's own dishwasher troubleshooting table lists E1 with three possible causes, all on the supply side: the faucet is not opened, the water intake is restricted, or the water pressure is too low, none of which point to a part inside the dishwasher.

ZLINE appliance display

What to do when E1 shows on the appliance

Kind of codeWater supply and drain

The new appliance is reporting what it gets from the water connections behind it. A no-water or slow-fill message on the first fill usually means the supply valve is still closed or only half open, or the new line kinked when the unit slid back; a drain message means the drain hose is pinched, pushed too deep into the standpipe, or looped higher or lower than the installation instructions allow. Open the valve fully, straighten the hose, set it to the height the manual gives, and run the cycle again.

Usually leads toWater supply and shutoff connection

New supply lines from a working quarter-turn stop to each water appliance, tested under pressure.

Shows up asNew Appliance Not Level: Rocking Cabinets and Uneven Gaps

A new appliance not level rocks when pressed at a corner, sits out of line with the counter, or shows a gap that widens from one side to the other.

MakeZLINE

ZLINE installs are mostly gas, dual-fuel and induction ranges with a matching hood, and increasingly the dishwashers and refrigeration beside them.

SourceZLINE DWMT-24 Monument dishwasher user manual

Confirmed on ZLINE's DWMT-24 Monument dishwasher user manual code table.

Before you book,
in this order.

Each step comes from ZLINE's own guidance for E1 on its appliances. Follow it to the end: the last card says whether this is a visit.

01

Check that the water supply valve behind the dishwasher is fully open, not just cracked.

02

Check the inlet hose for kinks or a clogged inline filter that would restrict water intake.

03

Confirm household water pressure is adequate by checking another fixture nearby.

04

If E1 continues once the supply is confirmed open and unrestricted, book a visit.

Still there?

It usually turns into water supply and shutoff connection. Book with the code and the model number.

What not to do

E1 points at the water supply reaching the dishwasher, not at a failed inlet valve inside it; it is a different code from E4 (overflow), which points at a leak rather than a slow fill.

What you may
notice with it.

The appliance problems E1 tends to arrive with. Answer these at the appliance before anyone is booked.

All problems

Before you call

New Appliance Not Level: Rocking Cabinets and Uneven Gaps

All 6 causes, cheapest first

It also comes with

Close view at the bottom corner of a newly installed stainless freestanding range, the kick drawer removed, one threaded leveling leg visible turned partway out, a small spirit level lying on the floor beside it with its bubble off center, a strip of light wood floor and the edge of a cabinet, soft daylight. Problem

New Appliance Not Level: Rocking Cabinets and Uneven Gaps

6 causes, cheapest first

Where E1 usually leads

Water supply and shutoff connection.

New supply line and quarter-turn stop for a refrigerator, ice maker, dish care machine or laundry pair, flushed and tested under pressure · low.
Book a visit What the job involves

ZLINE
appliances.

ZLINE installs are mostly gas, dual-fuel and induction ranges with a matching hood, and increasingly the dishwashers and refrigeration beside them.

ZLINE appliance installation

Water supply and drain on other makes

ASKO F12Bosch E17Cove Error 800115Dacor 4CDCS Blank display / OFF after power interruptionElectrolux HO SEFisher & Paykel Water is not getting to the machineFrigidaire E1
All 39 codes of this kind
A bright kitchen during an installation, a new stainless French door refrigerator on a low four-wheel appliance dolly being eased toward an empty cabinet opening, a technician seen from behind and shoulders down guiding it with one hand on the side of the cabinet, a folded moving blanket and a coil of new braided water line on a protective floor runner, cardboard corner guards at the edge of the frame, even daylight. ZLINE builds this

Cold storage

Setting a new refrigerator, freezer, wine or beverage unit or ice maker into its opening: measured, connected to water, leveled and started.

 A home kitchen mid-installation, a new stainless freestanding gas range pulled a foot out from its opening, a technician seen from the shoulders down kneeling beside it and tightening a new yellow-coated flexible gas connector to a wall shutoff valve with a wrench, a small spray bottle of leak solution on the floor, the anti-tip bracket screwed to the floor at the back, every burner off, even daylight. ZLINE builds this

Cooking appliances

Hooking up ranges, cooktops, wall ovens, microwaves and hoods: gas connectors leak-tested, anti-tip brackets fastened, ducts sized and the first light checked.

 A kitchen during an installation, a new stainless built-in dishwasher halfway slid into its opening under a stone counter, its kick plate removed, a technician seen from behind and shoulders down on one knee guiding a gray drain hose and a braided supply line through the hole in the side cabinet, the sink cabinet doors open beside him, a flashlight on the floor, even daylight. ZLINE builds this

Dish care

Fitting a new dishwasher or dish drawer under the counter: supply line, drain loop or air gap, power, mounting brackets and a first test cycle.

In ZLINE's own words

Slow fill time/fill time has exceeded time alloted
ZLINE DWMT-24 Monument dishwasher user manual ZLINE DWMT-24 Monument dishwasher user manual

Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Confirmed on ZLINE's DWMT-24 Monument dishwasher user manual code table.

ZLINE E1 appliance installation,
where we come out.

The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered.

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 unpacking groceries into a newly fitted kitchen, the fresh appliances set flush in their openings.
For the heart of your home.

Questions
about E1.

Can I clear E1 myself?
Check that the water supply valve behind the dishwasher is fully open, not just cracked. If it comes back, it needs a visit.
What does E1 mean on a new ZLINE dish care machine?
It means the fill took longer than the machine allows, and ZLINE's own table lists a closed faucet, restricted intake or low water pressure as the causes, all things to check at the supply line rather than inside the dishwasher.
Could a half-open shutoff valve cause a ZLINE E1 code?
Yes, a valve that is not fully open restricts the water intake exactly the way the manual describes, and is one of the first things worth checking on a freshly installed unit.
Is E1 the same as E4 on a ZLINE dish care machine?
No. E1 is a slow or incomplete fill tied to the water supply, while E4 means an overflow caused by a leak, which is a different condition with a different cause.

Back to your everyday

Still showing E1?

A booking moves faster with three things: the message exactly as the display shows it, the model number from the carton or the rating plate, and the moment it first appeared. With those, the office can tell whether it is a setup step or a connection to put right, and send the part that fixes it.

Schedule an installation Call (844) 638-8309
(844) 638-8309 Schedule an installation