By
eHow Home & Garden Editor
Difficulty: Moderately Challenging
Things You’ll Need:
- One multimeter
- Electrical contact cleaner
Step1
Unplug the rice cooker from the wall. Pull the power cord out of the cooker, if it's detachable.
Step2
Remove the cooker's covering dish and inner pot.
Step3
Flip your cooker over and remove the fasteners that hold the base in place.
Step4
Test the cooker's heating element first. Start by disconnecting the heating wire from one of its terminals.
Step5
Adjust your multimeter's scale to Resistance Times 1 (RX1).
Step6
Touch the two terminals with the multimeter's tester probes. If the multimeter gives a readout of nearly 0 Ohms, then the heating element is fine.
Step7
Test your rice cooker's resistor next. Again, the multimeter's scale should be set to Resistance Times 1 (RX1).
Step8
Disconnect the lead to the heating element, then touch the two terminals with the multimeter's testing probes. The resistor is OK if the multimeter registers about 20 Ohms.
Step9
Make sure that each of the switch contacts makes contact when you depress the lever arm. If one of them doesn't touch, use a small file to file it down until it does.
Step10
Clean the switch contacts with small applications of electrical contact cleaner.