Question about GE JVM1340AW/BW/WW Microwave Oven

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F4 on jvm1340ww002

Press START and F4 appears on screen. Microwave will not start.

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Posted on Jan 02, 2017

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MicrowaveSvc
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SOURCE: On the screen it shows F4, and F3

F4 means an open humidity sensor, but sometimes this error is bogus and can be reset by unplugging the oven for a minute or so.

F3 on a GE / Hotpoint microwave means you have a shorted keypad.

If you (or someone you know) might want to replace it yourself, I have uploaded a handy guide with pictures showing you what's typically involved.

You can usually find helpful exploded view diagrams and order parts by entering your full model number here.

There should also be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting & testing.

If you would like to have us do this for you, we do that for $39.95 plus part costs.

Feel free to contact me directly (and please remind me of your model number) for more information & help.

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

William E. Miller † prototech@usa.net
http://www.microwavedisplay.com

Posted on Oct 22, 2008

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SOURCE: ''Press Clock'' but can't press buttons, then beeps with F4 error

F4
Open humidity sensor, will occur if humidity sensor is detected as being open continuously over 5 seconds Replace humidity sensor

Posted on Sep 07, 2009

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1 Answer

LG LMV1813 F4 error code


F4 means sensor open, You have to check the Humidity sensor.
If you wish to get some details; visit the site linked here. Pull up older posts. http://electro-medical.blogspot.com/

Jan 31, 2017 | LG LMV1813ST Microwave Oven

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During reheat and popcorn settings - the error code F4 appears


Hi hoodrd,
If you are encountering F4 error code from your Amana oven this is because you have an Open Oven Temperature Sensor. This error requires a replacement of new oven temperature. You may contact Sears for the replacement part at 1-800-252-1698; M-F 6:30 AM-10:30 PM - Sat 7:00 AM-9:30 PM - Sun 7:30 AM-9:30 PM - All times Central. Just get your model number ready when you call.
Hope this helps.
Thank you for using FixYa.

Jan 17, 2011 | Amana ACO1860 Microwave Oven

1 Answer

What does F4 on microwave display mean?


This Kenmore is made by LG for Whirlpool. Confused yet? :D

F4 means you have an open humidity sensor.

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.

At our Web site here, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

To find helpful exploded view diagrams and get part numbers, you can just enter your full model number at the Sears parts site.

A full Sears/Kenmore model number has 3 digits, a dot, then 8 more digits, such as ###.########

But Sears parts can usually be obtained for far less here by entering either the part number.

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

Apr 22, 2010 | Kenmore Microwave Ovens

1 Answer

The microwave seems to be stuck on delay


thats what the express does its a one button start it
there s nothing wrong with the unit it is doing exactly what is programmed for what you are pushing

Oct 24, 2009 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

''Press Clock'' but can't press buttons, then beeps with F4 error


F4
Open humidity sensor, will occur if humidity sensor is detected as being open continuously over 5 seconds Replace humidity sensor

Sep 07, 2009 | GE Microwave Ovens

2 Answers

New GE Microwave JVM1750DM1BB with F4 error in Sensor cooking


GE
Microwave Fault Codes Failure
Code
Condition Check/Repair F1 Open sensor, will occur below 190F of cavity temperature within 15 minutes after starting convection, combination or roast cook Check oven temperature sensor for continuity. Replace if zero or infinite ohms F2 Shorted thermal sensor, will occur if a shorted thermal sensor is detected continuously over 5 seconds on convection, combination or roast cooking Check oven temperature sensor for continuity. Replace if zero or infinite ohms

Note: It will take a minimum of 5 minutes of convection run time before F1 or F2 code will be displayed if the thermal sensor is shorted or open. F3 Shorted key panel (touch pad), will occur if a shorted key panel is detected continuously over 60 seconds Replace key panel (touch pad) F4 Open humidity sensor, will occur if humidity sensor is detected as being open continuously over 5 seconds Replace humidity sensor F5 Shorted humidity sensor, will occur if humidity sensor is detected as being shorted continuously over 5 seconds Replace humidity sensor F6 Shorted temperature probe, will occur if temperature probe is detected as shorted continuously over 5 seconds Replace temperature probe ProbEe Open temperature probe, will occur if temperature probe is detected open, or not plugged into the receptacle If probe is plugged in and "ProbE" is on display check continuity of the probe with an ohm meter. If zero or infinite ohms, replace it

Feb 08, 2009 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

I have an Advantium SCB2000Cbb02, it quit with and Error F4


Sorry, but subject line was too long and it got cut off. So if this does not address all of your symptoms, please reply back with more details.

F4 means you have an open humidity sensor that needs to be replaced.

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.

At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

You can usually find helpful exploded view diagrams and order parts by entering your full model number here.

See this link before you start: http://www.microwavedisplay.com/safety.txt

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

Jan 04, 2009 | GE Advantium SCA2000B Microwave Oven

1 Answer

On the screen it shows F4, and F3


F4 means an open humidity sensor, but sometimes this error is bogus and can be reset by unplugging the oven for a minute or so.

F3 on a GE / Hotpoint microwave means you have a shorted keypad.

If you (or someone you know) might want to replace it yourself, I have uploaded a handy guide with pictures showing you what's typically involved.

You can usually find helpful exploded view diagrams and order parts by entering your full model number here.

There should also be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting & testing.

If you would like to have us do this for you, we do that for $39.95 plus part costs.

Feel free to contact me directly (and please remind me of your model number) for more information & help.

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

William E. Miller † prototech@usa.net
http://www.microwavedisplay.com

Oct 22, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

My jvm1190 reads F4 when we try to use auto functiions


There is a fuse blown, but I can't explain how to replace it. They are inside the unit. Good microwaves have many fuses and can be powered up, but have a blown element fuse.

Nov 10, 2007 | GE JVM1190 Microwave Oven

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