Question about Hobart 24 in. LXIC-5 Built-in Dishwasher

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Dishmachine won't fill

Hobart lx30 gives E3 error. not filling enough to hit probe

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  • brownhound Jun 19, 2008

    hello?

    i paid for the live chat and i'm not getting anything.

  • Anonymous Mar 28, 2014

    How do I access the programming to set up the machine after replacing the controller in the unit?

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Your problem is as straightforward as your observation, the unit is not getting enough water flow.

First, if your DW water is hooked up with a braided stainless hose, there is usually a screen in the end of it, (check both ends). It gets clogged with debris and chokes off the water. Make sure the line is not kinked.

If that doesn't work, you are likely having trouble with your fill valve. It is under the front kick panel. It has a large castle like upper cap. It is common for debris in the water to make this valve malfunction. It isn't too difficult to open up without removing. Just watch how it is assembled. If you pay attention, it's easy. If you have a booster, the hoses are very brittle with age.

And otherwise, the fill valve may be bad. REMEMBER, verify your supply water flow where it connects to the machine first. Don't assume. You could have a pressure regulator or a line strainer that is part of your supply line. They do fail. But that's a plumber's fix, not a technician.

Posted on Jun 21, 2008

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LX30H THROWS A CODE EO after running awhile. I hit the high reset button under the flaps on the front for both the boost and reg elements . It will work for a couple cycles and then does the same thing....


Machine won't fill or won't fill high enough. site water pressure meets minimum flow pressures. (LX18, LX30 display shows working.
"E0," "E2," "E3," or "E4". LX40 display shows "DR1 PRBLM," "FILL1 PRBLM," FILL2 PRBLM," or "FILL3 PRBLM". Machine will not run.)

1. Low water pressure - check for clogged hose strainer; check that

2. Make sure probes are clean

3. No water pressure - main water supply valves may not be

4. Drain valve open - turn machine OFF to drain machine, then
ON. Repeat twice (this assists in clearing any drain valve
obstructions). Wait for machine to reach READY mode and
press WASH. Slowly open door several seconds later and note
water level. Close door; 30 seconds later, open door slowly and
check that water level is the same as it was. If not, repeat the
OFF-ON procedure. If problem persists, call your local Hobart
Service Office.

5. Delime machine.

https://my.hobartcorp.com/resourcecenter/ProductDocumentation/F18615%20Rev%20I.PDF

Dec 10, 2013 | Hobart Lx30h Commercial Dishwasher

2 Answers

P1 error code on LX30 Hobart


This is a bad sump temperature probe. The unit will function, but will not heat nor display the wash water temperature.

This is a very easy fix. Order Hobart part number 328994 from your nearest Hobart parts dept.

Turn off and drain the unit. Kill the power to the unit at the circuit breaker. Remove the lower front cover. Locate the screw-in temperature probe at the front of the sump. Unplug the sensor from the wiring harness, remove with a 7/16" open end wrench. Screw in the new probe, using teflon tape of the threads, snuggly. It does not need to be super tight. Plug it into the harness, reinstall the front cover, turn the breaker back on, and start up the unit.

TURN THE BREAKER OFF AS EVEN WITH THE UNIT "OFF" THERE WILL BE 120 VOLTS PRESENT AT THE SUMP HEATER (yellow wires) DUE TO ONLY ONE LEG OF POWER BEING SWITCHED OFF!

Sep 04, 2009 | Hobart 24 in. LXIH-3 Built-in Dishwasher

1 Answer

E3 is showing up on the screen. We were told in the past this means that the probe is clogged we cleaned it out the way the guy showed us but this has not solved the problem.


E3 is -- water did not reach the middle probe in time. It's the longer of the two probes in the right rear corner. they should be white plastic insulators with stainless pins . Scale may be built up on the pins. Check for corrosion on the probe assembly connector on the rear outside. The connector is directly under the vacuum breaker which will leak if dirty of if pressure is low.. Watch the control board leds to monitor water level as it's filling. make sure you have 20 PSI fill flow pressure. Your system may be choked with scale restricting flow rate.

Jul 29, 2009 | Hobart 24 in. LXIH-3 Built-in Dishwasher

3 Answers

Leaks water from bottom of door. Error code E7 ?


I found this and it also may have to do with the door seals...how old is the unit...if door seals get old and stiff..(not soft and pliable) they sometimes leak...after usage the heat and moisture may cause them to swell and or become soft thereby sealing better...but this is what I found in the user manual.

Machine displays "E7" on LX30 model or "CLEAN PROBE" on LX40 model.
1. Clean water sensors inside tank.
It suggests contacting Hobart if this fails but I also found this problem is associated with fill issues...as in an E4 error...this what you do in that case....

Machine won't fill or won't fill high enough(LX18, LX30 display shows "E0," "E2," "E3," or "E4")

1.Low water pressure — check for clogged hose strainer; check that site water pressure meets minimum flow pressures.
2.Make sure probes are clean.
3.No water pressure — main water supply valves may not be working.
4.Drain valve open - turn machine off to drain machine, then on. Repeat twice (this assists in clearing any drain valve obstructions). Wait for machine to reach READY mode and press WASH. Slowly open door several seconds later and note water level. Close door; 30 seconds later, open door slowly and check that water level is the same as it was. If not, repeat the
OFF-ON procedure.
5. Delime machine.

Good Luck and I hope this helps...let me know if it doesn't and i am sure I can get to the bottom of it...thanks for rating my effort...the Fang.

May 19, 2009 | Hobart 24 in. LXIH-3 Built-in Dishwasher

1 Answer

E4 error after attempting to fill and get to temp


This is what I found for the E4 code...hope this helps...and thanks for rating my effort...The Fang.


Machine won't fill or won't fill high enough(LX18, LX30 display shows "E0," "E2," "E3," or "E4")

1.Low water pressure — check for clogged hose strainer; check that site water pressure meets minimum flow pressures.
2.Make sure probes are clean.
3.No water pressure — main water supply valves may not be working.
4.Drain valve open - turn machine off to drain machine, then on. Repeat twice (this assists in clearing any drain valve obstructions). Wait for machine to reach READY mode and press WASH. Slowly open door several seconds later and note water level. Close door; 30 seconds later, open door slowly and check that water level is the same as it was. If not, repeat the
OFF-ON procedure.
5. Delime machine.

Apr 28, 2009 | Hobart 24 in. LXIH-3 Built-in Dishwasher

2 Answers

Hobart LX15H indicates E4 and will not fill.


This is what I found in the manual...and on a couple of other sites....

Machine won't fill or won't fill high enough(LX18, LX30 display shows "E0," "E2," "E3," or "E4")

1.Low water pressure — check for clogged hose strainer; check that site water pressure meets minimum flow pressures.
2.Make sure probes are clean.
3.No water pressure — main water supply valves may not be working.
4.Drain valve open - turn machine off to drain machine, then on. Repeat twice (this assists in clearing any drain valve obstructions). Wait for machine to reach READY mode and press WASH. Slowly open door several seconds later and note water level. Close door; 30 seconds later, open door slowly and check that water level is the same as it was. If not, repeat the
OFF-ON procedure.
5. Delime machine.

If this doesn't help let me know and I will get to the bottom of it....good luck and thanks for rating my effort...The Fang.

Apr 27, 2009 | Hobart 24 in. LXIH-3 Built-in Dishwasher

1 Answer

Hobart LX30 error code wrench & E5


What error code is displayed?e1,e2,e3,e4?I'm a hobart tech let me know.

Apr 10, 2009 | Dishwashers

1 Answer

E-2 Error on LX30 Hobart Dishwasher


E-2 error is a fill problem. Water did not reach the lower probe within the time out. (innitial fill only
1- Is the bottom probe clean?
2- No fill water (check valve, hose,fill screen in end of hose, and fill source.)
3- low water pressure, should be 20 PSI flow.
4- Fuse 1FU blown.
5- Check wiring to fill valve.
6- Check relay board function.

Feb 15, 2009 | Hobart 24 in. LXIH-3 Built-in Dishwasher

2 Answers

Hobart LX 30 P2 Error and unit overflowing!


Hi drogers77,

I'm not a Hobart technician, but here what I founded in my manual for the LX30 error message:

LX18 / LX30 display shows E0, E2, E3 or E4

1. Low water pressure - check for clogged hose strainer; check that site water pressure meets minimum flow pressures.

2. Make sure probes are clean

3. No water pressure - main water supply valves may not be working

4. Drain valve open - turn machine OFF to drain machine, then ON. Repeat twice (this assists in clearing any drain valve obstructions). Wait for machine to reach READY mode and press WASH. Slowly open door several seconds later and note water level. Close door; 30 seconds later, open door slowly and check that water level is the same as it was. If not, repeat the OFF-ON procedure. If problem persists, call your local Hobart Service Office.

5. Delime machine.

Hope it will help you.

pepsicrazy

Dec 27, 2008 | Hobart 24 in. LXIH-3 Built-in Dishwasher

1 Answer

Hobart lx30 E3 error


Error Code E3 relates to a problem with the fill. Specifically that the water level has not been recognized at the middle water sensor. This can be caused by a problem with the drain system as you describe, or by low water pressure to the machine (should be 15-25psi flow), or bad wire connection to this middle sensor.
Check for proper water pressure first (should be a gauge on the machine) during the fill. Then check / repair drain as needed. These will probably eliminate the problem

Jun 19, 2008 | Hobart 24 in. LXIH-3 Built-in Dishwasher

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