Dishwasher malfunction

Dishwasher Repair
1

the dishwashes has malfunction and the troubleshooting says check the heater circuit.how do I check it and is it part of the motherboard:confused:

2

[FONT=Swiss721BT-RomanCondensed][SIZE=1][FONT=Swiss721BT-RomanCondensed][SIZE=1][LEFT]Check resistance of heater and all
components and connections in the water[/LEFT]
heating circuit or heat dry circuit.
Nat
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