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Trouble code 4d21

Both lower and upper fans work fine. There "were" unsoldered connections on the speed sensors of both motors. I fixed those and both fan motors work fine but I still get and error code 4D21...?WTH

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SOURCE: error message on JJW9530DDS Jenn-air wall oven

no/low cooling fan rotation (No RPM) single cavity or upper oven - check connection at cooling fan if ok, replace blower - DO NOT REPLACE CONTROL

Posted on Jul 22, 2010

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mc1bean
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SOURCE: My oven is saying 4d21 when I press bake and it

Hello, emily

I was trying to help you out here. Maybe this will help some? I was going back to some customers that asked questions in the recent past and farther back, It appeared that no one answered some of them, So, I thought I would take some of my personal time to see if I can help. Even though this site may not have your exact model or brand, This link will help you tons. Here is a link to about everything you want to know about your oven, from repair to trouble shooting it. Even pictures and video's. Just scroll around and you will see tons of information to almost any question you might have on your Oven. If you go to this link and click around, I am sure you will find out so much about your oven, you will know more than the company that made it. The good thing about this link is, then you can make the decision of DIY or hiring a pro. Here Is the link for you to click on>>


http://home.howstuffworks.com/dishwasher.htm



Please if this helped you at all, if you can find the time to rate my help and some kind words written would be appreciated for my free help , I would appreciate it. Here is also my direct link to my own pages of other areas of my expertise for other problems you might have in Automotive,Appliance, and Electronics. Drop In anytime for my help. Thanks,Mike

http://home.howstuffworks.com/how-to-repair-an-oven.htm


Please if this helped you at all, if you can find the time to rate my help and some kind words written would be appreciated for my free help , I would appreciate it.

Here is also my direct link to my own pages of other areas of my expertise for other problems you might have in Automotive,Appliance, and Electronics. Drop In anytime for my help

Thanks,Mike



http://beta.fixya.com/users/mc1bean

Posted on Oct 28, 2011

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1 Answer

F43 error on Frigidaire Wall Ovn?


The code F43 means - The cooling fan speed, as read by the tachometer input of the EOC-display board, is abnormally too slow. when the cooker is on can you feel the fan is on through the upper vent? If not then the fan is the problem if you can then the fan sensor is the problem!

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Oven shuts off with Error Code 4d21


This problem points to the controller card not functioning properly. It will need to be replaced. Here is a link so you can get the owner's manual:
http://www.manualslib.com/products/Jade-Range-Rjdo3003a-2904090.html

Check it out, it may help you figure it out.

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Error Code 4D21


Somewhere the control is not reading fan rotation could be encoders harness or control had this error once reset oven till I could return with control error never returned replaced control anyway

Feb 08, 2014 | Jenn-Air Electric Double Oven

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Rational SCC 202 service 34-6


34-6 is a service code associated with both the upper and lower oven fans not operating. Check the fan motors. there is a green LED. they should be on steady. If they are blinking, watch and count how many times it blinks before starting over. that is the error code associated with the fan motor. If there is no LED lit, then the fan power supply has failed. The fan failure is a hexadecimal code. "2" is the master fan failure, "4" is the slave fan. "6" is both fans. data to and from the fans is via the I/O PCB. There is a data cable from the operator pcb to the I/O PCB, then on to the fans. The problem can lie anywhere. Fans, PCB's, or data connections.

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1 Answer

After self cleaning process oven door would not unlock replaced display panel F3 error fan runs constantly lower unit still works upper unit still will not unlock


F3
or
F4
Shorted or open oven temperature sensor
(RTD) Check sensor harness and harness connection
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Dec 04, 2010 | Jenn-Air WW30430P Stainless Steel Electric...

1 Answer

Error message on JJW9530DDS Jenn-air wall oven is 4d21


no/low cooling fan rotation (No RPM) single cavity or upper oven - check connection at cooling fan if ok, replace blower - DO NOT REPLACE CONTROL

Mar 06, 2010 | Jenn-Air 30 in. Pro-Style Electric Single...

1 Answer

How to start oven in PROPANE STOVE


Print the following infore for future ref if you wish. How it works is simple tage a look at it in Motion
Component Test Procedure Results
Electronic
range control
F1−1 –Upper Oven >650°F with door unlocked.............................
F1−2 –Lower Oven >650°F with door unlocked.............................
F1−3 –Upper Oven >950°F with door locked.................................
F1−4 –Lower Oven >950°F with door locked.................................
F1−7 –Membrane switch is not responding ...................................
F3−1 –Upper sensor is shorted at (< 100 ω) or
open at (>5 K ω) ...............................................................
F3−2 –Lower sensor is shorted at (< 100 ω) or
open at (>5 K ω) ...............................................................
Check actual upper oven temperature,
if > 650°F check sensor.
Check actual lower oven temperature,
if > 650°F check sensor.
Check actual upper oven temperature,
if > 950°F check sensor.
Check actual lower oven temperature,
if > 950°F check sensor.
Check membrane switch for connection or damage.
Check upper sensor, harness, and connections
Check upper sensor, harness, and connections
Engineering
Test Mode
Press BAKE pad.
Enter 100°F using the number pads.
Immediately push and hold BAKE pad for appropriate oven
approximately 3 seconds.
This mode can also be entered by pressing the hidden pad
for 3 second located to the left of the lower oven light pad.
Used to view the actual oven temperature for both ovens at all
times, even when an oven function is active.
This mode will also display the current fault code for 5
seconds in the time digits.
Fault codes
accessed
through
Engineering
Test Mode
F0−0 –No fault .................................................................
F1−5 –Upper hardware failure within control ....................
F1−6 –Lower hardware failure within control.....................
F1−8 –Shorted key in membrane switch ..........................
F1−9 –Internal communication errors within control .........
F1−A –Upper latch switches ............................................
F1−B –Lower latch switches.............................................
F1−C –Upper door switch.................................................
F1−D –Lower door switch.................................................
F1−E –Sensor input not calibrated ...................................
F1−H –EEPROM error .....................................................
F1−L –Temp in ovens are the same for long period .........
F1−N –Internal voltage on control not working .................
F9−1 –Upper lock switch is not correct.............................
F9−2 –Upper unlock switch is not correct.........................
F9−3 –Control does not see upper door lock....................
F9−4 –Lower lock switch is not correct.............................
F9−5 –Lower unlock switch is not correct.........................
F9−6 – Control does not see lower door lock ...................
EE –Control cannot read E-PROM. Unit will shut down.
Default from factory
Replace control
Replace control
Check membrane connection
Replace control
Check latch wire harness
Check latch wire harness
Check lock wire harness
Check lock wire harness
Verify sensor is operating properly
Replace control
Verify sensor is operating properly
Replace control
Check lock wire harness, and lock switch
Check lock wire harness, and lock switch
Check lock wire harness, and lock switch
Check lock wire harness, and lock switch
Check lock wire harness, and lock switch
Check lock wire harness, and lock switch
Disconnect power for 60 seconds. If EE reappears, replace ERC
Test Mode This mode must be activated within the first 5 minutes of
power up.
Press BROIL and CANCEL pad for approximately 3 seconds.
If oven temperature is greater than 400°F, the Test Mode
cannot be activated or will abort if active.
Press and hold individual pads for 4 seconds to activate.
Display will have dashes in all segments to indicate the mode is
active.
Upper Bake: Energizes upper bake element
Lower Bake: Energizes lower bake element
Upper Broil: Energizes upper broil element
Convection Bake: Energizes convection fan
Upper Oven Light: Energizes upper oven light
Lower Oven Light: Energizes lower oven light
Upper Clean: Energizes upper motorized door lock
Lower Clean: Energizes lower motorized door lock
Stop Time: Energizes Beeper
Cook Time: Displays error codes
Timer 1: Energizes ROM version
Timer 2: Energizes EEPROM version
Keep Warm: Cooling Fan
Clock: All display segments light
If functions do not perform as specified, replace ERC
Oven
temperature
adjustment
Push BAKE pad.
Enter 550°F using the number pads.
Immediately push and hold BAKE pad for appropriate oven
approximately 3 seconds.
To decrease or increase oven temperature. Push AUTO SET
pad until negative or positive numbers appear. Oven can be
adjusted from -35° to +35° (-37.2° to + 1.6° C) in 5° F (2.7° C).
To avoid over adjusting oven move temperature -5° each time.
Push OVEN CANCEL button.

Sep 04, 2009 | Frigidaire 30 in. Electric Gallery Series...

2 Answers

F2 error code


Similar problem. When baking over 400 degrees we get the F2 code that can only be reset by cycling the power at the breaker. Replaced the electonics to no avail. I'm thinking its the cooling fan located between the oven and microwave (upper unit) it never comes on which may cause a separate temp switch to generate the F2... but I'm not a pro. :)

Nov 18, 2006 | GE JGRP17 Gas Single Oven

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