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Whirlpool G2 Microwave Problem

I have a Whirlpool G2 microwave and when in use the unit the display will blank out and will reset no error codes displayed. Sometime it will come back up and try to run where it left off, but will reset immediately after that.

I have pulled the 1100w inverter board and looked for hot spots but did not find any. I pulled the control board and same thing.

I ohmed out the magnatron and I show 0 ohms to the coil and infiniy from coil to chassie.

Any ideas.

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6 Suggested Answers

MicrowaveSvc
  • 8820 Answers

SOURCE: Panasonic microwave nn-s548wav, No lights

This is likely a problem or loose connection on the control unit circuit board.

We regularly repair these for customers nationwide with our guaranteed $39.95 service.

Please feel free to contact me directly if you need more help.

We're happy to help and we appreciate your thoughtful rating of our answer.

William E. Miller, AS-EET
prototech@usa.net
http://www.microwavedisplay.com

Posted on Apr 27, 2008

MicrowaveSvc
  • 8820 Answers

SOURCE: Kenmore microwave making loud buzzing sound.


We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.


Posted on Mar 06, 2009

MicrowaveSvc
  • 8820 Answers

SOURCE: Clock sets. as soon as the microwave is turned on

If it goes dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it goes dead several seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

Here are some links you or someone you know can use for test help, but read their safety warnings first:

http://www.gallawa.com/microtech/cap_test.html
(if bad, it will be shorted)

http://www.gallawa.com/microtech/xformer.html

There should be a "mini-manual" (tech sheet) hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, testing, and locating components.

d:%5cele%5crepair%5cmicrowave%5cge_hotpoint%5cmini_manual_behind_grille_small.jpgdee77f7.jpg

You can find helpful exploded view diagrams and order parts by entering your full model number from the tag on the oven here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Posted on Jul 19, 2009

  • 178 Answers

SOURCE: Whirpool convection microwave not heating properly MH6150XMS

Be sure when testing these switches that they are not 'in circuit' to get a valid reading. If the monitor switch does not open when the door is closed, it should blow the fuse when the cook circuit is energized. If the secondary interlock switch does not close to zero ohms, it won't complete the circuit correctly.

Posted on Sep 13, 2009

heatman101
  • 43501 Answers

SOURCE: Model: Whirlpool GH5184XP

Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101

eughk

Posted on Sep 30, 2010

MicrowaveSvc
  • 8820 Answers

SOURCE: Hello,i have microwave KHHS179LSS-2. Display

From a similar model's tech sheet (and yours should have one hidden inside):

F7
Power to magnetron interrupted
1. Unplug microwave oven or disconnect power.
2. After 40 seconds, check to see whether this solves the problem.
3. Check resistance of the magnetron thermostat.
4. Check the magnetron. See this file for details.
5. Check wiring to the 1100W inverter and control system. See "Checking Inverters"
6. Check operation of all interlock switches. See this text file. Check door, hinge and cavity front alignment. Adjust as needed.
7. If switches operate correctly, replace 1100W inverter.
8. If problem persists, replace electronic control.
9. Plug in microwave oven or reconnect power.

You can find helpful exploded view diagrams and order parts by entering your full model number (KHHS179LSS2 without dashes or spaces) from the tag on the oven here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Posted on Nov 27, 2010

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It is a logic problem or at least electrolytic capacitors that dim the display too far. The display could be repaired if it isn't a ic (logic) problem if it is then you need the whole display replaced

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There is a problem with the control pad. The membrane, or surface, of the pad may be broken or damaged somewhere, resulting in the F2 error code. This is common for Whirlpool microwaves.


Press "Stop/Cancel" twice and select a new cook program. Press "Start" to begin.

If the error code persists, press "Stop/Cancel" again and unplug the microwave. Wait several minutes and plug it in. If the F2 code appears again, it requires repair.


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TOUCH PANEL & MICROCOMPUTER BOARD TEST FOR WHIRLPOOL....

The microwave oven may be provided with a self diagnostic routine that can be operated

through the touch pad keyboard. To enter the self-diagnostic routine:

1.While pressing the CANCEL keypad:
a) Open the oven door.
b) Unplug the microwave oven for 2-seconds and plug it back in.
c) Release the CANCEL keypad and close the oven door. You will see the following display.

CHART
NOTE: The humidity sensor test results will appear on the display after 8-seconds.If the tests are successful, "OK " will be displayed. If one or more of the tests fail, "ERR " will be displayed.. 2.When a keypad is pressed, a number according to the test chart will be displayed. When no keypad is pressed, a blank "O" (square) is displayed...

POWER FAILURE & FAILURE CODES
Power Failure: After a power failure, the WELCOME screen will be displayed.

F2 Keyboard Failure: Refer to the Tech Sheet and conduct a touch panel continuity test.

F3 Humidity Sensor Failure: Refer to the Tech Sheet and test the sensor.

F6 Microwave Relay Failure: Check the microwave relay.

F7 Microcomputer Board Failure: Change the microcomputer board.


Hope helps.

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1 Answer

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This is a known problem with this unit, and whirlpool has put out a Service Flash out on this. The reason this is happening is Electrical circuit interruption between the L1 and Neutral in the microwave invert circuit. This has to be addressed by a Tech.

DrakeTech

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I've got the same problem and error code. Did you ever find the fix?

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The F6 error code which is flashing on your microwave refers to a faulty relay. However, I would suggest that you first try to run a diagnostic (which you may not be able to, but it is beneficial if it works). Here is how:

The microwave oven may be provided with a self diagnostic routine that can be operated through the touch pad keyboard. To enter the self-diagnostic routine:
1.While pressing the CANCEL keypad:
a) Open the oven door.
b) Unplug the microwave oven for 2-seconds and plug it back in.
c) Release the CANCEL keypad and close the oven door.

NOTE: The humidity sensor test results will appear on the display after 8-seconds.If the tests are successful, "OK " will be displayed. If one or more of the tests fail, "ERR " will be displayed.. 2.When a keypad is pressed, a number according to the test chart will be displayed. When no keypad is pressed, a blank "—" is displayed.
If you want to try to fix it your self, Always remember Electricity is dangerous and should be treated with respect.
Microwaves are very dangerous, they can still shock you even unplugged!!
Use a metal ( not the shiny chrome type ) screw driver with a insulated handle to short across ( touch both at the same time ) the terminals of the high voltage capacitor to discharge it. With the microwave unplugged.

Hope that helps.........

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Your generator may be putting out a square wave instead of a true sinusoidal (sine) wave.

There is usually a circuit in the microwave which monitors the AC line for timing purposes, and a square wave may not be interpreted correctly.

I would consult the manual or contact the manufacturer or installer.

We're happy to help and we appreciate your thoughtful rating of our answer.

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