Ppart number is h7407ain memory unit for roweami r82

Hey John,,, Watch this...
https://www.youtube.com/watch?v=8fTwIOZ9EiQ

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Google the brand you are keeping a secret from us and contact your nearest representative to order the cable.

When you are a skilled electro repair engineer, you will find lots of help on ifixit.com.
If you don't have the skills, just visit a phone repair shop.
https://www.ifixit.com/Device/Android_Phone

Use switch cleaner and try again

I can get you a parts number I am not comforable uploading the whole manual.

You will need to talk to Electolux

some check engine lights have to be cleared with a scanner or code reader

When replacing the two output tubes you should check the voltage at TP26 or either cathode pin of the power output tubes to ground. Set the bias by adjusting pot R82 to 60mv which is 60 ma across the 1 ohm metering resistor. This coresponds to 30 ma per tube. Changing other tubes requires NO adjustment.

The most likely cause, is a burned out heating element. Sears has the replacement pparts. You will need the model and serial numbers. The replacement is relatively easy. Disconnect the power and then from the back, take out the screws that hold the element housing in place. Depending on the model, you will also have to pop the top to get the unit out.