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AM15 Dishwasher, Wash tank temperature seted 160, now washing temperature 130 after heating contactor no holding, what is the problem

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Posted on Jan 02, 2017

bigg t
  • 640 Answers

SOURCE: I will be hooking up this dishwasher.

I'm a hobart tech.If the dishwasher is going to be a cold machine you need 140 degrees,if its a hot machine you need 180 which you need a booster.A hatco c-36 will supply the dishwasher with180-190 degrees.Any ? let me know.

Posted on Jan 16, 2009

bigg t
  • 640 Answers

SOURCE: what is p3 code on hobart am15 dishwasher

It means that the final rinse thermistor is bad.Your not getting 180 degrees---right?Its located on the booster and costs about $65.I work for hobart.Any ?

Posted on Jan 25, 2009

bigg t
  • 640 Answers

SOURCE: AM14 tank heaters--when are they energized?

How hot is the wash temp?It should be 150-165 degrees.The model is an am14 not an am15?I'm hobart tech and repair these units weekly.Let ne know.

Posted on Mar 02, 2009

  • 109 Answers

SOURCE: Hobart AM-14 water temperature not maintained

The AM14 when filled, will control the wash heat on the thermostat and high limit controls, putting power to the wash heat contactor. I believe it is 2CON. This circuit is not timer cycle dependant.
There are two types of control board form the AM14. The older has a black metal heat sink in the center, You set the wash set point by holding the wash heat button on the board. This will cause the display to flash with the set point. Turn the trim pot on the board, near the top to adjust.
There are a variety of versions for control voltages. Most are 24v ac. Check your schematic inside the control box, or look at the spec of 2CON for the coil voltage. Put a meter on 2CON coil to monitor the control. If power remains on the coil but the contactor drops out, you have a coil that is opening with heat. If the power drops prior to set point, trace the loss of power through the controls.

Posted on Oct 04, 2009

  • 1 Answer

SOURCE: what is p3 code on hobart am15 dishwasher

Our AM15 Hobart dishwasher is showing the wrench symbol. Past answers suggested repalcing the thermistor. I did that. Then I did a hard reset on the dishwasher, but the wrench symbol is still there. The water is only getting to 160 not 180. Now what?

Posted on Nov 13, 2009

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Kenmore ultra wash dishwasher gets stuck at 42 on the control panel


Be aware that all (well, almost all) dishwashers have a "thermal hold" period in their cycles. This is the point in the main wash cycle where the heater is turned on to heat the water to the optimum wash temperature (about 150 to 160 deg F), and during this time, the timer will stop advancing. Once the water has reached the desired temperature, the cycle will continue. IF it does not, then you have a water heating problem. This could be caused by a bad heating element, a bad controller, a bad thermostat or temperature sensor.

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How long does it stay in the wash cycle? Indefinitely? Does the display continuously show "WASH"?. If it stays in the wash cycle indefinitely (i.e. continuously shows "WASH" for significantly beyond approx. 3 minutes), it's probably a control board malfunction. If it continues to wash after the "WASH" indicator goes out, it could be a shorted wash motor relay on the relay board or a fauly control board.

If the internal rinse water booster heater doesn't reach it's programmed setpoint temperature in time, the dishwasher will run an extended wash cycle to give the booster heater more time to finish heating the rinse water. If this is what's happening, the wash cycle would last approximately 3 minutes, then it would rinse regardless of whether the booster heater has finished heating or not.

The booster temperature thermistor may be bad, giving a false booster temperature reading, causing an extended wash cycle as described above. The booster heater elements or contactor may be bad, preventing the booster heater from heating and reaching proper temperature, also causing the same extended wash cycle to give the booster more time to heat.

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Check the Door switch. If the screen shows FILL but donĀ“t do it, check all fuses on control board.

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AM14 tank heaters--when are they energized?


How hot is the wash temp?It should be 150-165 degrees.The model is an am14 not an am15?I'm hobart tech and repair these units weekly.Let ne know.

Feb 26, 2009 | Hobart AM14-253 Free-standing Dishwasher

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Where can i find a trouble shooting guide for this unit


The wash tank heating element is control by 1. the dual Float switch 2. The temperature control 3. the high limit thermostat 4. Contactor 5. tank heat fuse 6 element itself. Hope this help. God Bless.

Feb 12, 2009 | Champion CG Dishwasher

1 Answer

Heats up water slowly, only by repeated operation


The wash tank element should be operated through a 3 or pole contactor which gets its power only when the rinse tank has come up to temp and switched the thermostat over(rinse tank heating takes priority). Is the rinse tank element fully intact ie-is it pulling its full amperage or is part of the element blown causing it to take longer to heat? Is the rinse contactor dropping in when the thermostat for the rinse tank is turned fully down? It sounds like a thermostat or contactor problem- good luck and let me know how you get on. Kitcheneer

Mar 24, 2007 | Champion 26 in. D-HBC Free-Standing...

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