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If your Hobart AM15 dishwasher is displaying an AH error code on start up, it usually indicates that there is an issue with the booster heater. AH stands for "Booster Heater Circuit".
Here are some troubleshooting steps you can follow to resolve the issue:
Check the booster heater temperature sensor. It may be dirty or faulty, preventing the booster heater from functioning properly. Clean or replace the temperature sensor if necessary.
Check the booster heater element for continuity. If the element is broken, it will need to be replaced.
Inspect the wiring and connections between the booster heater and the control board. Loose or damaged connections can prevent the booster heater from functioning properly.
Check the booster heater relay on the control board. If the relay is faulty, it will need to be replaced.
If none of these steps resolve the issue, you may need to contact a professional technician to diagnose and repair the problem.
Does it show a wrench icon and P1?
error codes are p 1to 3 for probe errors, or E1 to 7 for error codes.
P1 is the probe on the wash tank. It's a thermistor with two black wires to a white connector. There is another on the booster front (P2) and a 3rd on the rear airgap, (p3). You could try exchanging 1 and 3 to see if the fault changes too. You have to drain the booster to swap P2. If it can't determine the wash tank temp, it won't know to control the heat and shows the error.
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.
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 ?
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