I have AM14C Hobart dishwashing machine and when the rinse turns on we only get about 5 PSI, how do I adjust the pressure or what do I need to look at?

For a machine without a break-tank (a.k.a. cistern) and booster pump: check the inline debris strainer on the rinse water pipework; check you're not missing any rinse jets; check the inlet valve is fully opening.

For a boosted machine, check the pump impeller isn't disintegrating; check that the flexible hoses to the booster pump aren't collapsing internally.

For both machines: descale if you're in a hard water area.

water flow pressure needs to be a min. of 15 PSI..

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.

All Hobart dishwashers will have a wash tank heating element, but the rinse water is not heated by the dishwasher, unless it has a built-in booster heater. Usually a separate booster heater is used to heat rinse water to 180-190 deg. F for hot water sanitation.

The WM-1D does not have any internal heating devices. You have to supply the machine with the proper water temp. It has two fill valves, one for wash and one for rinse. It should have 150F supplied to the wash fill valve and 180F to the rinse fill valve.

Hi,
That is not that hard to fix and you can easily buy the parts yourselfonline...

Here is a tip that will help you with the online buying...

How to Buy Appliance Parts Online

heatman101

Your rinse Thermister is shot. Replace the thermister between the fill valve and the solenoid. Also be watchful of the 120V, ensure this is secured as there is two power sources. Is ya good

12 second sof rinse used about 0.8 gallons at that presurre

Todd - A pressure regulator will REDUCE pressure only. There is no back pressure - the machine's gauge is reading the incoming water pressure as it fills/rinses. Assuming the gauge is OK, the machine is only seeing 7 psi. There is an inline strainer in teh machine, check that for blockage. You said the machine was operating on 45 psi with a reading of only 12 psi. There may be some kind of pressure reducer - I have seen Hobart use special supply hoses with builtin orifices.

hope this helps, if not email me, i service commercial machines and came across your question as I was looking for help myself!

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dishwasher in subject line

That board comes with directions. if not go to hobart and have them copy you one out of a new boards box