Microwave not heating.
Answer Hello Dixie. You most likely have a "high voltage" side malfunction. Transformer, diode, magnetron, Capacitor. You will need to be extremely careful if you decide to test the components with a multi meter, Very high residual voltage is present, so make sure you remove power to the microwave and short across the terminals on the capacitor. The magnetron should have a reading of less than 1 ohm resistance across the two terminals, and an "open" circuit between each terminal and chassis ground. The diode/rectifier should have a resistance reading in one direction only, no resistance, or resistance in both directions indicate a faulty diode. The primary winding on the trans former should read approximately 450 Ohms resistance, the secondary winding should read 80 ohms resistance, and the filament transformer should read 100 ohms resistance. If all the readings are proper and in range, replace the magnetron.
My Whirlpool double oven intermittently powers off uncommanded. The display panel goes blank. Power can be restored by pressing anywhere on the control panel. The oven will "beep" and the display returns. No fault codes are displayed. Other than this annoying problem the oven functions properly.
It sounds like the time of day feature has been turned off to the oven. To turn it back on you will want to push and hold the clock button for 5 seconds. This should turn the time of day on and keep it on. If this does not resolve the issue then you will want to replace the control board of the unit due to internal failure of the transformer on it.
Unsure what part needs replacing. Top and bottom element heats, but not hot enough to cook biscuits. I noticed that the heat light comes on, but only for about 30-40 seconds, then goes off. Back on in about same amount of time, but off again in usually a min. or less. It's a Whirlpool smooth surface stove. Thanks for your assistance.
Answer Hello J.,
This usually means that one leg of voltage has been dropped. You could have a bad breaker, bad wiring between the breaker and the unit, or a component inside the unit has failed such a thermostat or relay on the board. I would be a lot better assistance with the model number of your unit so I can pull the wiring diagram. This would show me the components in the circuit and enable me to advise you of the test points to properly troubleshoot your unit.
Whirlpool/Black Double oven is showing no LED's - Top. Light comes on and all the buttons beep. I have shut it off for 10 minutes - no change.
The buttons beep and Light comes on for top/bottom. Once the oven started (without LED) and then it immediately stopped...
So, is the control board gone or is it the Thermal fuse on the bottom or the Fuse on the top. Doesn't sound like the control board.. Any help would be appreciated...
If the control beeps when you hit the buttons but there is no display then you will want to check the transformer. There should be 120 vac going into the transformer and your test points for the transformer are on the control board Connector P16 pins 5 to 7 for 120 vac. Then check P16 pins 2 to 3 for 12 to 24 vdc. If there is power into the transformer but no power out then the transformer is faulty. If there is no power to the transformer then the control board is the issue.