Question about Hobart 24 in. LXIH-3 Built-in Dishwasher

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Hobart LX30H washing to hot.

I have changed the sump element that burnt out, now it washes at a higher tempreture causing damage to plastic equipment. How or can the tempreture be ajusted,and how is it done?

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What temp is it washing at. washing should not be the problem. This machine is designed to rinse at 180 degrees + to sanitize dishes. The machine could be converted to a chemical sanitize, it would use bleach in the rinse water instead of 180 degree water to sanitize.

Posted on Nov 15, 2008

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1 Answer

Hobart lx30h leaking from bottom


This is a testing for the post on this web site, not a solution.

Mar 27, 2014 | Hobart Lx30h Commercial Dishwasher

1 Answer

I have a hobart lx18 and when i plugged it in, it started smoking


I have to asume the wiring connections had not changed since it last worked.
There are three versions. LX18, LX18C and LX18H.
Inspect the relay board for damage. The connections can come loose and melt relays.
It could also be the wash sump tank heater or the booster heater if it's an H. The other two only have a sump heater. If you power it on, and have no water in it's tanks, the elements can glow red hot till they trip the high limits.

Feb 25, 2014 | Hobart Dishwashers

1 Answer

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

1 Answer

Hobart LX30H no sump or booster heat


Check the heat circuit of your dishwasher. This will include your control, heat element, thermostat/thermal fuse, & sometimes your door switch. Check your thermostat/thermal fuse and heat element for continuity first. If all test good, go to your control and possibly your door switch. Check for voltage from your control and continuity of your door switch.Use the VOM. God bless you
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Apr 04, 2013 | Dishwashers

1 Answer

Hobart L30 show code P3 and tempreture rises high Very quickly before it finsh filling


P3 refers to one of the dishwasher's three temperature sensors: sump temperature, booster heater temperature, or rinse water temperature. The dishwashers control circuitry has determined one of them is open or shorted, or at least out of range.

Judging from the symptom you mentioned, that you see rapid temperature reading changes before it finishes filling, I'd say it's probably the sump probe (because that's the temperature displayed during the fill cycle), located under the large removeable screen inside the dishwasher.

To test or replace, remove the small access panel at the lower front of the dishwasher (2 screws).
After the dishwasher has reached a good normal operating temperature, unplug the sump probe connector (white plastic connector with two small black wires going to it and coming from the area mentioned above where the temp. probe is. Using a multimeter, test the resistance of the probe. If the water in the dishwasher is hot (150 deg. F or more), you should read somewhere in the area of 5,000 to 10,000 ohms. If your measurement varies significantly from this range, replace the probe- most likely you'll see a reading near zero ohms or a very high reading, possibly an open-circuit probe (infinite resistance i.e. "OL" indicated on most multimeters).

It's possible I'm wrong about which temp. probe P3 refers to. There is also a temp. probe on the booster heater and one on the rinse piping on the rear of the dishwasher. Test procedure is the same for all of them, although the probe on the rinse piping is not constantly subjected to hot water so testing at room temperature would result in higher resistance value (lower temperature means higher resistance for these temperature probes).

Nov 18, 2010 | Hobart 24 in. LXIH-3 Built-in Dishwasher

2 Answers

Hobart dishwasher am14 displays 255 in temp window heater wont fire


The wash thermistor is shorted. The float and probe assembly in the wash tank should be replaced.

Jun 13, 2010 | Hobart AM14C-155 Dishwasher

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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

Dishmachine lx30h


Did you solve your problem?I'm a hobart tech and can step you through somethings to check.

Apr 12, 2009 | Hobart Dishwashers

1 Answer

Hobart LX30H Parts


Heating elements don't need to "look" clean to work proper. I would use a wire brush to remove the looser stuff, and ignore the rest. A thin scale layer is not a big deal for an element.

I'd stick with the rubber plugs. They work pretty good if you get them in all the way. New arms would be pretty expensive. Just buy a few extra plugs. And don't cut yourself installing them!!

May 08, 2008 | Hobart SR24-H Built-in Dishwasher

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