Hobart LX 30H shuts off and turns back on by itself
i have a hobart lx 30h it seems to turn off and then back on by itself. sort of randomly. also the panel seems to not work from time to time. i can unplug it and plug it back in and it will works, sometimes. also if i turn it off it will turn right back on again. it will run fine but sometimes just turn off even during a wash cycle.
Re: hobart LX 30H shuts off and turns back on by itself
I work in the product service department for Hobart Corp. and work mainly with the Hobart dishwashers. The most common problem with what you have going on is a faulty keypad on the front of the unit. This is the component with the actual on/off/wash buttons on it. If the problem is very frequent, then you could contact your local Hobart service office and they could come out and troubleshoot the problem to be certain that this is the faulty part before just buying a part and hoping that it works. If you would like to discuss this a bit further or need assistance as to a contact for your local Hobart office, you can contact us at 937-332-2525, and press option #2.
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Most of the Hobart LX series of dishwashers have their own built-in booster heaters. To check for one, remove the lower front panel (2 screws). The booster heater, if present, will be a stainless steel tank on the left side. If it doesn't have a built in booster heater then it was meant to be used with chemical sanitizer instead.
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.
The answer to this question will be based on the incoming water temperature that is supplied to the booster heater. The standard sizing for a booster heater is based off of a 40 degree F rise (140 degree F incoming water temperature) or a 70 degree F rise (110 degree F incoming water temperature). For a 40 degree F rise, a Hatco model C-5, S-5, or PMG-60 will supply the needed amount of rinse water for the LX-18 Hobart dishwasher. A 70 degree F rise would require a Hatco model C-9, S-9, or PMG-60 to supply the same Hobart model number.
If you kill the power to the dishwasher from your circuit breaker then turn the breaker back on then turn the dishwasher on does it work ok?If not i would suspect the control board is acting up or is wet.
You are having a problem with the fill valve. If the unit fills AT ALL, with the power off, the fill valve is the issue.
It is a gold color valve behind the front kick panel. It has a large castle-like cap. Sometimes debris is the cause of your failure. (50/50). Turn off the water, and just take it apart slowly and pay attention to the plunger and spring. Take out the diaphram and screen, and clean it. There should be just one small hole in the diaphram. If cleaning doesn't help, you need to buy a rebuild kit. If you get the "ML" off the data plate, I can get you the kit P/N.