Whirlpool MH1170XSB Support Question
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Question posted by geecirca64 on March 31st, 2014
How Do I Fix The Display Lighting?
The display lighting is out. The microwave still works, but the display light is out. I can still punch in times to cook and set the timer, but the display is not working.
Current Answers
Answer #1: Posted by waelsaidani1 on March 31st, 2014 6:44 AM
Turn the oven off.
Locate the transformer behind the control panel.
Using the multimeter check the continuity between 2 red and 2 blue contacts at the transformer.Take the one wire off when testing.Replace if any of the two windings is open.
First of all turn the power to the oven off.
You need a multimeter to check the continuity of the two windings. One is with 2 blue wires and another with 2 red wires.Take one wire off each winding and with the meter set to continuity touch with each meter's probe one of the same color contacts.You should read >0 ohm.
If you read infinity - transformer is bad.
Locate the transformer behind the control panel.
Using the multimeter check the continuity between 2 red and 2 blue contacts at the transformer.Take the one wire off when testing.Replace if any of the two windings is open.
First of all turn the power to the oven off.
You need a multimeter to check the continuity of the two windings. One is with 2 blue wires and another with 2 red wires.Take one wire off each winding and with the meter set to continuity touch with each meter's probe one of the same color contacts.You should read >0 ohm.
If you read infinity - transformer is bad.
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