20 Most Recent GE Advantium SCA2000B Microwave Oven Questions & Answers

My Advantium 240 damper motor was cycling as mentioned above in the morning after a power failure had occurred. Removing the top vent grille and control panel I could see the inlet damper was opening fully and stopping about halfway closed then retrying. Removing power and cycling by hand, i could move it freely until just before it would contact the micro switch at home position where there was a hard stop. I removed the light assembly on top of the cavity and was able to access the rod that spans across to the outlet damper near the halogen light. A combination of fiddling with the connecting rod inside the light housing and manually cycling the inlet damper reseated the rod and everything was working again. My guess is the power failure was the cause and hopefully the issue won't return.

You might be able to use a 120v to 240v inverter, but may still get problems as the inverter doesn't alter the mains frequency. In the UK and Europe, our 240v / 200v are supplied at a nominal 50Hz. Most 120v systems use 60Hz.

For many devices this doesn't matter, but a microwave oven uses an internal inverter to boost the incoming voltage to the much higher one needed to operate the cavity magnetron: the bit which makes the microwaves. Although it actually runs on dc power, the ac to dc conversion does not produce a smooth dc output,. Since the magnetron relies on an oscillation process to produce microwaves, the wrong oscillation can result in weak or no microwave power, or it can cause the element to overheat and fail.

In simple terms, it will work or it won't. If it doesn't it may blow the most expensive single internal component which usually renders the microwave economically unrepairable. If it does, it may underperform or gradually stress the magnetron causing premature failure. Considering the cost of a suitable inverter and the risks to the oven, it makes more sense just to buy an oven of the correct voltage to start with. New ones cost peanuts these days and used ones are often offered free on FreeCycle or Freegle, usually just needing a good clean before being re-used.

probably bad door switch

check the touch pad or control unit any short circuit in the control unit, other wise any moisture at control unit chec the circuit other wise replace the touch pad.

Do you mean you want to use the speedcook function of the oven?I would refer you to your owner's manual.If for some reason you don't still have yours, you can find it here: http://genet.geappliances.com/search/search?site=gea-litlib_collection&client=gea-litlib_frontend&output=xml_no_dtd&proxystylesheet=gea-litlib_frontend&filter=0&getfields=*&tlen=150&q=SCA2000+

Here is some wisdom for understanding F1 fault codes.

In some models, there are subcodes that make diagnosis even easier.

Here's a simple explanation of what's going on and how to troubleshoot:

The F1 code indicates that:


a. The electronic range control (ERC) is sensing heat in the oven when in a time-of-day (i.e., not cooking) mode.

b. The ERC is receiving information to run multiple heat functions simultaneously.


Although different components (depending upon the model) could generate the code, simple and straightforward testing using your ohm meter is all you gotta do to test for it.

1. Check the oven temperature sensor. The oven sensor has to be within spec or it will cause the F1 code.
As an example of being out-of-spec, the ERC will generate an F1 fault code when the sensor shows 1650 ohms during a time-of-day mode.
This is equivalent to 350°F in the oven.
The resistance isn't high enough to generate an F2 code (runaway temp) or an F3 or F4 code (shorted/open sensor circuit).
The ERC monitors the sensor circuit after a heat cycle and expects the resistance to drop back to 1050-1100 ohms.
The fault code is generated when this doesn't happen. Checking the sensor circuit means also checking the harness,
harness connections and the sensor itself.

2. If the oven sensor circuit checks okay, then turn your inquisitive eyeballs to the touchpad.
If the range has a separate touchpad/keyboard, the keypad may have moisture that is shorting several circuits simultaneously.
If the F1 code is given immediately (instead of during or after a heat cycle),
remove the ribbon connector from the touchpad to the ERC after clearing the F1 code. If the F1 code does not return in five minutes,
then cast a suspicious gaze upon the touchpad/keyboard. Shorts may be caused by using an ammonia-based glass cleaner.
The touchpad surface will absorb ammonia-based cleaners that are sprayed directly on the glass surface. When heat is applied,
the surface material can break down causing shorts.
If you're gonna use ammonia-based cleaners on your control panel, then you should spray it on the rag and then wipe the touchpanel
-don't spray directly onto the surface of the touchpad.

3. On Amana ranges with a rotary temperature dial, be sure that the knob is in the OFF position when performing tests.

4. If these tests all check good, then replace the ERC.


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I just bought a condo with a GE Spacemaker Mod# JVM1860SD
that was stuck in demo mode. (This mod# has been replaced by the JVM1870*** series)

I called GE twice in two days, and finally got someone who had the solution (and it worked):

1. Unplug the unit for at least 30 seconds
2. Plug the unit back in DO NOT SET THE CLOCK
3. While the unit is still "booting up" and the display screen is lit with gibberish, HOLD THE POWER LEVEL AND THE ZERO BUTTON for at least 5 seconds.
4. After 5 seconds, the screen will display "demo mode off"

It messed me up at first because the power level and zero pads don't beep when the unit is booting up... but it worked.
- Again, this is for the GE Spacemaker 1860-1870 series models only - The women who gave me instructions said she had different demo mode unlock methods for the 1400, 3670, 2070 etc... so call GE if you have a different model.
P.S. my model looks like this - the keypad setup is key http://products.geappliances.com/ApplProducts/Dispatcher?REQUEST=SPECPAGE&SKU=JVM1870SK&SITEID=GEA