E4 error after attempting to fill and get to temp

Sufficiently cleaned, epoxy putty will hold most things that new O-rings can't.

Many parts are still available.

https://www.google.com/search?q=Hobart+LX18H+parts

https://www.partstown.com/hobart/lx18h/parts?searchwithin=drain

..

Anyone who doses manually needs their heads looking at unless they only do one wash a day! :>D

LXi SERIES DISHWASHER - Hobart

https://www.hobart.com.mx > pdf > ManualOper
PDF
The Operator Programming mode allows changes to be made from factory settings to the chemical pumps' operation. This includes the Detergent and Rinse Aid pumps, ...
24 pages

Hobart LX18 User Manual - Page 1 of 28 ' Manualsbrain.com

https://manualsbrain.com > ... > LX18 > User Manual
Page 19MANAGER PROGRAMMING (Machine Must Be In READY Mode) To enter the Manager Programming Mode, you must first enter the Operator... Page 20PROGRAMMABLE ...

How do you check the programming on a Hobart Lx18h

https://www.justanswer.com > ... > Appliance Repair
Dec 5, 2018 - How do you check the programming on a Hobart Lx18h dishwasher,,how do I get into programming to check booster heat.
1 answer · Top answer: To complete this transaction, please click the five stars at the top right of your screen ...

People also ask

F20 only appears on Washing machines.

E2 error code on Hobart dishwasher E0, E2, E3 & E4 - This appears if the machine isn't filling or filling high enough. When any of these codes display, the unit won't run. Check out our troubleshooting guide for possible causes.Jul. 17, 2019

Hobart Dishwasher Error Codes ' Parts Town

Most likely sump temperature probe needs replacing.

I found this website that can help you further.
Hobart Kitchen Appliance Product Support ManualsOnline com

Hi, there is a build up of junk and mold behind the filter screen and under the cover at the bottom of the dishwasher where you will also find standing water that was not draining.
Clean it up and your dishes will come out clean..

The LX18 series was a compromise machine, the lack of a sump heater causes numerous rinse temperature problems due to it's increased water use (over the sump-heater equipped, fresh water rinse LX30 series).

The LX18H can be reprogrammed for true fill and dump operation. If you still need to do this, please let me know via e-mail or post a reply, otherwise a won't post the long answer!

(I worked for Hobart as a service tech. from 1994 until 1999, and have been independent since then)

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.

this is asensor error unit not filling fast enough or loose connection

E4 indicates water level has not reached top water sensor. Check for proper flow-water pressure to machine (15-25psi) and clean sensor in wash tank