We change the temperature sensor probe , and still nothing! the booster contacter not getting activated! if i push down the contacter i get voltage at the element other wise nothing!
Follow the wires for the contactor coil one of them is connected to a resetable hi limit, press the button on the hi limit to reset
SOURCE: lx30h hobart dw. booster will not turn on. element
The booster heat control circuit is controlled by the relay board. Visually check for loose or burnt relay contacts...
You will see the booster LED light when it calls for heat. Some newer machines have a second high limit on the right hand side of the booster tank.
It may be your control board is configured for low temp with no booster. When you power up, the display should say LX30H. If not
Pull open the upper drawer, place a magnet over the door interlock switch.
CAUTION, 220 volt power is present. be carefull what you touch.
on control board, short J5-1 and J5-2, then power up. You are in factory setup. press select on the control board to see each option on the front panel., press up arrow on control board to step up through options for each step. when done, press the off button on front panel. remove short and start up normally. With the magnet in place, AND THE DOOR CLOSED, run the machine and observe the relay board status lights.
If you want to adjust the temp set points, with the machine off, press and hold the hidden key behind the front panel logo, and press select on the control board.. Or on power up, hold the wask key..Same to adjust options as above. Press off to exit.
SOURCE: When we push the Off button the machine won't
Try disconnecting power from the unit either at the plug or the breaker if hard wired. Reconnect the power and turn it on. If the water drains, refills and operates as usual, your problem is likely a bad off button on the membrane switch. Let us know
SOURCE: Good morning, I have 01 Hobart dishwasher AM14, i
294692 for the rinse probe.
"temperature sensor for booster heater"? Do you mean the thermostat? If so, part number is 274161.
Parts breakdowns and part numbers are available at www.hobartservice.com. Click "Parts" on the left, then click "Hobart SmartParts System" on the next page. You'll be asked a series of questions to identify your piece of equipment, and then you'll get a parts list and have links to parts breakdowns for various sections of the machine.
SOURCE: Hobart LXiH error E4 AND part makes noise when OFF
test this steps and fix it. GOd bless you
Drain Pump
If the dishwasher is loud during operation,
the drain pump might be defective or might have some debris in it. This
is a common problem.
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Circulation Pump
If the dishwasher is loud during operation,
and the noise is a continuous drone similar in speed to the circulation
pump sound, it's likely that the circulation pump motor bearings have
failed. Once this happens the circulation pump will have to be replaced,
the bearings are not repairable.
Enter your model number to see parts for your dishwasher.
Help me find my model number
Drain Impeller
If the dishwasher is loud during operation,
the drain impeller might be broken, or there might be debris in the
pump. Generally, to gain access to the pump the top of the pump housing
will have to be removed.
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Help me find my model number
Pump and Motor Assembly
If the dishwasher is loud the motor bearings,
drain impeller or wash impeller might have worn out. All three of these
components are part of the pump and motor assembly. It may be possible
to replace one of the impellers, but the motor bearings cannot be
repaired. In that case the pump and motor assembly will need to be
replaced.
Enter your model number to see parts for your dishwasher.
Help me find my model number
Wash Impeller
The wash impeller is a small, plastic blade.
The motor spins the impeller forcing water through the spray arms to
clean the dishes. If one or more blades has broken off of the impeller
the dishwasher is loud. The impeller can also scrape against the pump
housing if it is damaged, warped or bent.
Enter your model number to see parts for your dishwasher.
Help me find my model number
Circulation and Drain Pump Motor
If the dishwasher is loud during operation,
and the noise is a continuous drone similar in speed to the motor sound,
it's likely that the circulation and drain pump motor bearings have
failed. Once this happens the motor will have to be replaced, the
bearings are not repairable.
Enter your model number to see parts for your dishwasher.
Help me find my model number
Water Inlet Valve
The water inlet valve is an electrically
controlled water valve. When it is new, the water inlet valve is very
quiet. Over time, the diaphragm inside the valve deteriorates and
deforms. This deformation interacts with the water rushing in and can
cause a loud vibration, buzzing, squealing or other noises. If the
dishwasher is loud during the filling cycle, replacing the water inlet
valve may solve the problem.
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And the Booster light on the circuit board is on ! and no voltage on the coil of the contacter
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