Electric Double Wall/Built-in Whirlpool Oven Dead? Could be open thermal fuse

Electronic Control Board for Whirpool Double Electric Oven

Electronic Control Board for Whirpool Double Electric Oven

 

Does your oven display look like this?  Is the oven completely dead, whether or not you’ve already had the control board rebuilt by a PCB repair company?  This is probably just the result of an open fuse in-line with the black “hot” wire to the control board transformer.

 

Check for continuity through thermal fuse in-line with black wire, then 120VAC across black and white wires

Check for continuity through thermal fuse in-line with black wire, then 120VAC across black and white wires

Use an ohmmeter to check for continuity through the fuse.  If open, it needs to be replaced.   If the fuse is OK, but the board is totally dead, check that there is 120VAC across the “hot” wire with fuse and white neutral wire in the caddy-corner wiring harness.  If you’re getting 120VAC there but the board is still completely dead, consult a PCB repair company to get the board repaired.

 

PART NUMBERS:

4448876, 4452242

MODEL NUMBERS: 

GBD277PDB0, GBD307PDQ0, RBD245PDB1, RBD245PDB2, RBD245PDB4, RBD245PDQ1, RBD245PDQ2, RBD245PDQ4, RBD275PD02, RBD275PDB1, RBD275PDB2, RBD275PDB3, RBD275PDB4, RBD275PDB6, RBD275PDD4, RBD275PDQ1, RBD275PDQ2, RBD275PDQ4, RBD277PDB1, RBD277PDB4, RBD305, RBD305PD04, RBD305PDB1, RBD305PDB2, RBD305PDB4, RBD305PDQ1, RBD305PDQ2, RBD305PDQ3, RBD305PDQ4, RBD305PDQ6, RBD306PDB1, RBD306PDB4, RBD306PDQ1, RBD307PDB4, RBD307PDQ1, RBD307PDQ2, RBD307PDQ4, GBD277PDB1, GBD307PD, GBD307PDQ1, GBD307PDQ10, GBD307PDS1, RBD245PDB6, RBD245PDQ6, RBD245PR, RBD275PDB6, RBD275PDQ6, RBD275PDQ8, RBD276PDB6, RBD276PDD6, RBD305PDB6, RBD305PDBG, RBD305PDQ6, RBD306PDB06, RBD306PDB6, RBD306PDQ6, RBD386PDQ6, RBD275PDB6, GBD277PDB1, RBD275PDQ6, RBD306PDB6, RBD245PDB6, GBD307PDS1, RBD306PDQ6, RBD306PDZ6, GBD277PDQ1, RBD276PDB6, GBD307PDB1, RBD245PDQ6, RBD276PDQ6, GBD277PDS1, GBD307PDQ1, GBD307PDT1, GDB277PDB1, GDB277PDQ1, RBD305PDQ6, RBD305PDB6, RBD275PDQ2, , RBD275PDB4, RBD305PDQ1, RBD305PDQ2, RBD306PDB1, , RBD245PDB1, RBD275PDB1, , RBD275PDQ1, , RBD275PDQ4, RBD305PDQ4, GBD307PDB0, RBD245PDQ4, RBD275PDB2, , RBD275PDQ3, RBD277PDQ2, RBD305PDB4, RBD305PDQ3, RBD245PDB3, RBD276PDQ2, RBD276PDQ4, RBD305PDB1, RBD305PDB2, RBD306PDQ1, RBD306PDQ4, GBD277PDB0, GBD277PDQ0, GBD307PDQ0, PBK1227, RBD245PDB2, RBD245PDB4, RBD245PDQ1, RBD245PDQ2, RBD245PDQ3, RBD275PDB3, RBD276PDB1, RBD276PDB2, RBD276PDB4, RBD276PDQ1, RBD277PDB1, RBD277PDB2, RBD277PDB4, RBD277PDQ1, RBD277PDQ4, RBD305PDB3, RBD306PDB2, RBD306PDB4, RBD306PDQ2, RBD306PDZ1, RBD306PDZ2, RBD306PDZ4, RBD307PDB1, RBD307PDB2, RBD307PDQ1, RBD307PDQ2, RBD307PDQ4

 

Dim Display on Whirlpool Built-in Oven? Check for Corroded Wire Nuts. RBD YGBD Series

Another troubleshooting tip from a PCB repair company.

bizcard_gen_small

A very nice lady from Houston sent us the oven controller from her Whirlpool RBD275 built-in double oven. We rebuilt and returned … then got it back a while later with a note saying the display is very dim. We powered it up on our test bench and the display looks great. After discussions w/nice lady the syptoms were: I can read the blue clock ok (but not great), I can’t read the temp display after a few seconds of starting bake.

 

So, long story short … wire nut connections on the main power feed to her oven are corroded … a few seconds after you push “start” the bake relay kicks in and draws high current causing the control board voltage to droop.

On the bench we hooked up a Variac (variable transformer) to test at proper and then compare to drooped voltage. You can see in the pictures that at full voltage display looks great (lower)  but with the line voltage dropped to 91V (upper) you can still read clock but the orange digits are almost gone. It’s a characteristic of the display technology (vacuum flourescent display – VFD).

 

It’s a good quick visual to see failing breakers and oxidized wire nuts (at least once they’re degraded enough to add about 0.5 ohms of resistance to power feed).

Simulated affect of voltage drop across faulty wire-nuts

Simulated effect of voltage drop across faulty wire-nuts

Part numbers:

4451856, 4451991, 4452890, 4452898, 4453664, 8301345, 8301908, 8301917, 8302319, 8302967, 8303817, 8303883, 4451992, 4452891, 8302966.

Model Numbers:

GBD277PDB09, GBD277PDB10, GBD277PDB2, GBD277PDB3, GBD277PDB4, GBD277PDB5, GBD277PDB6, GBD277PDB7, GBD277PDB8, GBD277PDQ09, GBD277PDQ10, GBD277PDQ2, GBD277PDQ3, GBD277PDQ4, GBD277PDQ5, GBD277PDQ6, GBD277PDQ7, GBD277PDQ8, GBD277PDS09, GBD277PDS10, GBD277PDS2, GBD277PDS3, GBD277PDS4, GBD277PDS5, GBD277PDS6, GBD277PDS7, GBD277PDS8, GBD277PDT09, GBD277PDT10, GBD277PDT7, GBD277PDT8, GBD277PRB00, GBD277PRB01, GBD277PRB03, GBD277PRQ00, GBD277PRQ01, GBD277PRQ03, GBD277PRS00, GBD277PRS01, GBD277PRS02, GBD277PRS03, GBD277PRT00, GBD307PDB09, GBD307PDB10, GBD307PDB2, GBD307PDB3, GBD307PDB4, GBD307PDB5, GBD307PDB6, GBD307PDB7, GBD307PDQ09, GBD307PDQ10, GBD307PDQ2, GBD307PDQ3, GBD307PDQ4, GBD307PDQ5, GBD307PDQ6, GBD307PDQ7, GBD307PDS09, GBD307PDS10, GBD307PDS2, GBD307PDS3, GBD307PDS4, GBD307PDS5, GBD307PDS6, GBD307PDS7, GBD307PDT09, GBD307PDT10, GBD307PDT3, GBD307PDT4, GBD307PDT5, GBD307PDT6, GBD307PDT7, GBD307PRB00, GBD307PRB01, GBD307PRB03, GBD307PRQ00, GBD307PRQ01, GBD307PRS00, GBD307PRS01, GBD307PRS02, GBD307PRT00, GBD307PRY01, KBRP36MHT00, KBRP36MHW00, LTG6234DT5, RBD245PDB10, RBD245PDB11, RBD245PDB12, RBD245PDB14, RBD245PDB15, RBD245PDB7, RBD245PDB8, RBD245PDB9, RBD245PDQ10, RBD245PDQ11, RBD245PDQ12, RBD245PDQ14, RBD245PDQ15, RBD245PDQ7, RBD245PDQ8, RBD245PDQ9, RBD245PDS12, RBD245PDS14, RBD245PDS15, RBD245PDT10, RBD245PDT11, RBD245PDT12, RBD245PDT14, RBD245PDT15, RBD245PDT8, RBD245PDT9, RBD245PRB00, RBD245PRQ00, RBD245PRS00, RBD245PRS01, RBD245PRT00, RBD275PDB10, RBD275PDB11, RBD275PDB12, RBD275PDB13, RBD275PDB14, RBD275PDB15, RBD275PDB7, RBD275PDB8, RBD275PDB9, RBD275PDQ10, RBD275PDQ11, RBD275PDQ12, RBD275PDQ13, RBD275PDQ14, RBD275PDQ15, RBD275PDQ7, RBD275PDQ8, RBD275PDQ9, RBD275PDS12, RBD275PDS14, RBD275PDS15, RBD275PDT10, RBD275PDT11, RBD275PDT12, RBD275PDT13, RBD275PDT14, RBD275PDT15, RBD275PDT8, RBD275PDT9, RBD275PRB00, RBD275PRQ00, RBD275PRS00, RBD275PRS01, RBD275PRT00, RBD276PDB10, RBD276PDB11, RBD276PDB12, RBD276PDB7, RBD276PDB8, RBD276PDB9, RBD276PDQ10, RBD276PDQ11, RBD276PDQ12, RBD276PDQ7, RBD276PDQ8, RBD276PDQ9, RBD277PDB1, RBD277PDB2, RBD277PDB4, RBD277PDQ1, RBD277PDQ2, RBD277PDQ4, RBD305PDB10, RBD305PDB11, RBD305PDB12, RBD305PDB13, RBD305PDB14, RBD305PDB15, RBD305PDB7, RBD305PDB8, RBD305PDB9, RBD305PDQ10, RBD305PDQ11, RBD305PDQ12, RBD305PDQ13, RBD305PDQ14, RBD305PDQ15, RBD305PDQ7, RBD305PDQ8, RBD305PDQ9, RBD305PDS12, RBD305PDS14, RBD305PDS15, RBD305PDT11, RBD305PDT12, RBD305PDT13, RBD305PDT14, RBD305PDT15, RBD305PRB00, RBD305PRQ00, RBD305PRS00, RBD305PRT00, RBD306PDB10, RBD306PDB11, RBD306PDB12, RBD306PDB13, RBD306PDB14, RBD306PDB15, RBD306PDB7, RBD306PDB8, RBD306PDB9, RBD306PDQ10, RBD306PDQ11, RBD306PDQ12, RBD306PDQ13, RBD306PDQ14, RBD306PDQ15, RBD306PDQ7, RBD306PDQ8, RBD306PDQ9, RBD306PDT11, RBD306PDT12, RBD306PDT13, RBD306PDT14, RBD306PDT15, RBD306PDZ10, RBD306PDZ7, RBD306PDZ8, RBD306PDZ9, YGBD307PDQ6, YGBD307PDB7, YGBD307PDQ7

Note, The text for this article was taken directly from a recent post on http://appliantology.org/topic/42157-whirlpool-oven-dim-display-and-wire-nuts

Dead GE double oven? Transformer or Controller? Troubleshooting Guide

This guide will help you identify what problems you may have in the power supply to the electronics in your GE double oven.  Some symptoms you may be experiencing include, but are not limited to:
  • Blank display or no beeping
  • F1 error code
  • Oven seems dead

Generally, these are signs of a failed controller, but sometimes blank display or dead oven are simply the result of a failed transformer.  I say “simply” because it is much less expensive and much easier to replace/fix the transformer than it is the controller.  The objective of this post is to help you figure out which is the faulty part so you can send the right one to www.FixYourBoard.com to be repaired.

You’ll need an AC voltmeter as well as a basic tool set handy (pretty much just the right sized screwdriver).

The first thing to do is cut the breaker to your oven before you start taking it apart – we don’t want anybody getting killed by high voltage.

Next, you’ll need to expose your controller.  Refer to this post for help if you don’t know how to access the control unit.  There is no need to disconnect anything – that could actually make your measurements useless.  Once it’s exposed, make sure you can comfortably touch the various wiring harnesses with the voltmeter probes.  If it’s going to be a struggle, you may want to demount the unit from the panel to get some more slack.

Now, turn the breaker back on.  You’ll need to be very careful from here on.  Even though the controller is mostly a low voltage device, there are still points of high voltage on the relay board, and you can still cause electrical damage if you probe the wrong places.  Wall power goes into a transformer somewhere off the control module, and the transformer steps the wall power down to low voltage and routes that to the control board.  The low voltage comes into the board at the white wiring connector labeled J1.  It’s near the black connector receiving the clear, thin ribbon cable from the keypad (see photo).

The transformer sends two separate low voltages to the control board, 21.5 VAC and 4.6 VAC.  These voltages are approximate: as long is you’re in the ballpark, you should be good.  Also, it’s important to note that there are many variations of this control module.  Yours may look a bit different from the one depicted below, but you should still be getting the same supply from the transformer.  The photo shows a unit with all the wiring detached – yours should have a wiring harness occupying the J1 connector, but you should be able to stick the voltmeter probes along the wires into the sockets of the harness to take measurements.  If not, cut the breaker, disconnect the harness from J1 connector, turn the breaker back on, and probe the bottom side of the harness.  You should measure voltages according the photo.  Note that the empty slot is referred to as pins 3.

GE double oven electronic control board

Probes on pins 1 and 2 is one measurement. Probes on pins 4 and 5 is a separate measurement. The empty slot is referred to as Pin 3.

If you measure the proper voltages, then you know the transformer is not the issue.  Make sure the wiring harness is well connected, clean, and making good contact.  If you’re still having problems as described at the beginning, then the controller is the problem, and you should send it to FixYourBoard.com for repair.

If you aren’t reading these voltages, then you either have a bad transformer, or bad wiring.  Cut the breaker, and follow the wires back to the transformer.  These four wires come out of the secondary side of the transformer.  There should be another two wires going into the other side of the transformer, the primary side.  With the breaker on, you should measure 120VAC going into the primary.  I shouldn’t need to tell you how DANGEROUS 120VAC is.  If you measure 120VAC at the primary, check to see if you get 21.5 and 4.6 right at the secondary.  If not for either one, then the transformer is definitely bad and you should contact FixYourBoard.com for repair.  If you have these voltages right at the transformer, but not at the board, then the wiring has broken down somewhere between and needs to be fixed.  If you’re not getting 120VAC into the transformer primary, then you have a serious electrical wiring problem in your wall which should be addressed by a professional (e.g. electrician).

I hope you found this guide helpful! Remember you can always email info@fixyourboard.com with questions.

-Young Padawan

Jenn-Air ACB, JEW, JJW, MEW, SCE, SVD, and WW Series Built-In Ovens can’t keep time and can’t be calibrated? Solution is here.

We’ve seen a number of Jenn-Air ovens (relevant model/part numbers and photos of typical boards below) here at FixYourBoard.com with the same recurring problem…

The oven control seems unable to consistently keep the time (e.g. the display is often encountered flashing “12:00”), and the user calibration for the oven temperature is not saved after being set.

To set temperature calibration follow these steps:

  • Press “Bake” (upper bake will calibrate the upper oven, and lower bake will calibrate the lower oven)
  • Enter in “500” degrees
  • Hold down “Bake” again (the same bake as pressed at the start)
  • This should enter the calibration menu.  A number ranging from -35 to +35 (by increments of 5) should be displayed.  The default is “0”.
  • Press “Broil” to toggle between positive and negative ranges and then key in the desired offset (can only be from -35 to +35 by increments of 5).
  • Ex) a +20 degree offset will cause the oven controller to display “330” for an oven cavity that is actually 350 degrees.  Similarly, a -25 degree offset will cause the controller to display “425” for a cavity that is actually 400 degrees.
  • Press “Clear/Cancel” or just idle for a few seconds and the offset will be stored and the display will return to showing the clock.  So if you were to re-enter the calibration menu, it should show whatever number you just keyed in.

The control failure being addressed in this post is when you re-enter the calibration menu and it reads “0” or is blank instead of being stored at the desired offset.

Well we’ve discovered what’s causing this problem and know how to fix it.  Furthermore, we will refurbish the entire board, quickly and reliably, replacing all the components prone to failure and back it up with a two year warranty.  And the best part is that this repair is a fraction of the cost of buying a new controller, or worse yet, a new oven.  So send your malfunctioning controller in to FixYourBoard.com and we’ll get it back up and running like new in no time!

Relevant Jenn-Air model numbers:

ACB6260AB ACB6260AS ACB6260AW ACB6280AS

SCE30600B SCE30600BC SCE30600W SCE4320B SCE4320W SCE4340B SCE4340BC SCE70600B SCE70600W SCE30500W

SVD48600B SVD48600PF SVD48600PG SVD48600PK SVD48600PR SVD48600PT

MEW6627BAB MEW6627BAC MEW6627BAQ MEW6627BAS MEW6627BAW MEW6627CAS

JEW8527AAB JEW8527AAW JEW8530AAB JEW8530AAW JEW8627AAB JEW8627AAW JEW8630AAB JEW8630AAW JEW9627AAB JEW9627AAS JEW9627AAW JEW9630AAB JEW9630AAS JEW9630AAW JEW9527AAB JEW9527AAW JEW9530AAB JEW9530AAS JEW9530AAW

JJW8527AAB JJW8530CAB JJW8530CAS JJW8530CAW JJW8630CAB JJW8630CAS JJW8630CAW JJW8527CAB JJW8527CAS JJW8527CAW JJW8627CAB JJW8627CAS JJW8627CAW JJW9527CAB JJW9527CAQ JJW9527CAS JJW9527CAW JJW8530CCB JJW8530CCW JJW9530CCB JJW9530CCS JJW9530CCW JJW9630CCB JJW9630CCS JJW9630CCW

WW30430W WW27430B WW27430BC WW27430P WW27430PF WW27430PG WW27430PK WW27430PR WW27430PU WW27430W WW27430WC WW30430B WW30430P WW30430PC WW30430PF WW30430PG WW30430PK WW30430PR WW30430PU

Relevant Jenn-Air part numbers:

12001691 12001693 12001914 71001799 71001872 71001977 71002594 71003401 71003424 74006612 74006613 74006614

71001799

Single oven display - front

71001799

Single oven diplsay - rear

Double oven display - front

Double oven display - rear

Single/upper oven relay board


Lower oven relay board

Whirlpool Oven – Common Problems and Causes

This post is a quick overview of common problems with the popular Whirlpool board series: 8303883, 8302967, 8302319, 8301345, 8301917, 8301908,4451856, 4451991, 4452890, 4452898 and 4453664.   Here, at www.FixYourBoard.com, we are well acquainted with all these problems.  This guide will help you troubleshoot oven control problems at home.  If, indeed, the problem is in the control board, don’t hesitate to send it to us for a quick, quality repair backed with a two year warranty.

,
Control Board Front View Control Board Back View

    • E6/F2 Error Code ->   Always a problem with control board

This is the most common symptom and can only be due to the control board. Since the techsheet decodes this to “cancel key line drive open”, many people suspect the keypad is bad. The keypad is not causing an E6/F2. Based on years of experience, E6/F2 is never anything other than the control board….. Send it in.

Whirlpool Oven Panel E6 F2 Error CodeWhirlpool Oven Panel E6 F2 Error Code
    • E1/F5 Error Code ->   Can be control board, door lock or keypad

Wait a minute! The techsheet decodes it to “Self-clean latch will not lock” . How could the keypad cause this? Good question. On models with a manual door lock for the lower oven, the keypad has a special short between pins 1 and 11. This tells the control board not to cycle the door lock on the lower oven because there is no motorized door lock to control. If this short is missing, eventually the control board will flash the E1 error code on the right side of the clock display.
If the E1 is on the left of the clock, it is complaining about the upper oven. In this case, the keypad cannot be responsible. Once you determine the door lock is functioning correctly, the problem is with the control board.

Whirlpool Oven Panel F5_E1 Error Code
    • E1/F2 only ->   Always a problem with the keypad

This code means the board did not detect the keypad. Once again, this is based on years of experience. Never have we seen the control board causing this problem.

    • E0/F3 and E2/F3 ->   Almost always a problem with the control board

If the temp sensor measures approximately 1050 ohms when measured at the white connector on the control board, the problem is likely the control board.

    • Blank Display (With Beeps) ->   Problem is the control board

The beeps at power up, mean the board is getting power. If the display stays off after beeping, there is a problem with the control board

    • Blank Display (No Beeps) ->   If input power is ok, problem is control board

If you are getting approximaely 24V from transformer but the display is blank, the control board is the problem.

We hope this helps you quickly troubleshoot common problems with this Whirlpool series. Remember, if you have a symptom that is puzzling or new, contact us at www.FixYourBoard.com and we can help you figure it out. Thank you for your business!

Model Numbers:

GBD277PDB09, GBD277PDB10, GBD277PDB2, GBD277PDB3, GBD277PDB4, GBD277PDB5, GBD277PDB6, GBD277PDB7, GBD277PDB8, GBD277PDQ09, GBD277PDQ10, GBD277PDQ2, GBD277PDQ3, GBD277PDQ4, GBD277PDQ5, GBD277PDQ6, GBD277PDQ7, GBD277PDQ8, GBD277PDS09, GBD277PDS10, GBD277PDS2, GBD277PDS3, GBD277PDS4, GBD277PDS5, GBD277PDS6, GBD277PDS7, GBD277PDS8, GBD277PDT09, GBD277PDT10, GBD277PDT7, GBD277PDT8, GBD277PRB00, GBD277PRB01, GBD277PRB03, GBD277PRQ00, GBD277PRQ01, GBD277PRQ03, GBD277PRS00, GBD277PRS01, GBD277PRS02, GBD277PRS03, GBD277PRT00, GBD307PDB09, GBD307PDB10, GBD307PDB2, GBD307PDB3, GBD307PDB4, GBD307PDB5, GBD307PDB6, GBD307PDB7, GBD307PDQ09, GBD307PDQ10, GBD307PDQ2, GBD307PDQ3, GBD307PDQ4, GBD307PDQ5, GBD307PDQ6, GBD307PDQ7, GBD307PDS09, GBD307PDS10, GBD307PDS2, GBD307PDS3, GBD307PDS4, GBD307PDS5, GBD307PDS6, GBD307PDS7, GBD307PDT09, GBD307PDT10, GBD307PDT3, GBD307PDT4, GBD307PDT5, GBD307PDT6, GBD307PDT7, GBD307PRB00, GBD307PRB01, GBD307PRB03, GBD307PRQ00, GBD307PRQ01, GBD307PRS00, GBD307PRS01, GBD307PRS02, GBD307PRT00, GBD307PRY01, KBRP36MHT00, KBRP36MHW00, LTG6234DT5, RBD245PDB10, RBD245PDB11, RBD245PDB12, RBD245PDB14, RBD245PDB15, RBD245PDB7, RBD245PDB8, RBD245PDB9, RBD245PDQ10, RBD245PDQ11, RBD245PDQ12, RBD245PDQ14, RBD245PDQ15, RBD245PDQ7, RBD245PDQ8, RBD245PDQ9, RBD245PDS12, RBD245PDS14, RBD245PDS15, RBD245PDT10, RBD245PDT11, RBD245PDT12, RBD245PDT14, RBD245PDT15, RBD245PDT8, RBD245PDT9, RBD245PRB00, RBD245PRQ00, RBD245PRS00, RBD245PRS01, RBD245PRT00, RBD275PDB10, RBD275PDB11, RBD275PDB12, RBD275PDB13, RBD275PDB14, RBD275PDB15, RBD275PDB7, RBD275PDB8, RBD275PDB9, RBD275PDQ10, RBD275PDQ11, RBD275PDQ12, RBD275PDQ13, RBD275PDQ14, RBD275PDQ15, RBD275PDQ7, RBD275PDQ8, RBD275PDQ9, RBD275PDS12, RBD275PDS14, RBD275PDS15, RBD275PDT10, RBD275PDT11, RBD275PDT12, RBD275PDT13, RBD275PDT14, RBD275PDT15, RBD275PDT8, RBD275PDT9, RBD275PRB00, RBD275PRQ00, RBD275PRS00, RBD275PRS01, RBD275PRT00, RBD276PDB10, RBD276PDB11, RBD276PDB12, RBD276PDB7, RBD276PDB8, RBD276PDB9, RBD276PDQ10, RBD276PDQ11, RBD276PDQ12, RBD276PDQ7, RBD276PDQ8, RBD276PDQ9, RBD277PDB1, RBD277PDB2, RBD277PDB4, RBD277PDQ1, RBD277PDQ2, RBD277PDQ4, RBD305PDB10, RBD305PDB11, RBD305PDB12, RBD305PDB13, RBD305PDB14, RBD305PDB15, RBD305PDB7, RBD305PDB8, RBD305PDB9, RBD305PDQ10, RBD305PDQ11, RBD305PDQ12, RBD305PDQ13, RBD305PDQ14, RBD305PDQ15, RBD305PDQ7, RBD305PDQ8, RBD305PDQ9, RBD305PDS12, RBD305PDS14, RBD305PDS15, RBD305PDT11, RBD305PDT12, RBD305PDT13, RBD305PDT14, RBD305PDT15, RBD305PRB00, RBD305PRQ00, RBD305PRS00, RBD305PRT00, RBD306PDB10, RBD306PDB11, RBD306PDB12, RBD306PDB13, RBD306PDB14, RBD306PDB15, RBD306PDB7, RBD306PDB8, RBD306PDB9, RBD306PDQ10, RBD306PDQ11, RBD306PDQ12, RBD306PDQ13, RBD306PDQ14, RBD306PDQ15, RBD306PDQ7, RBD306PDQ8, RBD306PDQ9, RBD306PDT11, RBD306PDT12, RBD306PDT13, RBD306PDT14, RBD306PDT15, RBD306PDZ10, RBD306PDZ7, RBD306PDZ8, RBD306PDZ9, YGBD307PDQ6, YGBD307PDB7, YGBD307PDQ7

Part Numbers:

4451856, 4451991, 4452890, 4452898, 4453664, 8301345, 8301908, 8301917, 8302319, 8302967, 8303817, 8303883, 4451992, 4452891, 8302966

Thermador Built-In Oven – Takes Too Long to Heat, Can’t Control Temperature, No Heat

Does your Thermador oven have temperature control problems caused by the control board?  The following post describes the behavior of a properly working control board in pre-heat.  This applies to the following model series: SCD27,  SCD30,  SCE30,  SCE70,  SC272,  SC301,  SC302,  SMWS7,  SMW27,  SM272,  SVD48,  S272T,  S301T and  S302T.  At www.FixYourBoard.com, we hear about problems such as the oven taking too long to heat, temperature fluctuations in the oven, oven is burning food or there is no heat at all.

First, the picture below shows the relevant connections  that should be measured to ensure that the elements are correctly turned on by the relays.  This picture is an example of part 492067 which is the power / relay board.  Its purpose is to provide power to the oven, turn on heating elements and fans, and communicate with the display board.

thermador_relay_power_board controller

Relay Board and Noted Measurement Points

These ovens can be tricky to troubleshoot, but start with the following table which shows how the timer is controlling the heating elements and cooling fans.  Note that an AC voltmeter must be used to perform the following checks

Thermador Pre-Heat Cycling

Pre-Heat ModeBake to L2 Broil 1 to L2Broil 2 to L2DLB relayCooling Fan Relay
Bake ModeOn 50 sec = 0VAC
Off 10 sec = 240VAC
Off 50 sec = 240VAC
On 5 sec = 0VAC
Always off = 240VACAlways on = 0VACAlways on = 0VAC
Convection
Roast
Always off = 240VACOn 30 sec = 0VAC
Off 30 sec = 240VAC
On 30 sec = 0VAC
Off 30 sec = 240VAC
Always on = 0VACAlways on = 0VAC
Convection Bake ModeAlways off = 240VACAlways off = 240VACAlways on = 0VACAlways on = 0VACAlways on = 0VAC
Broil ModeAlways off = 240VACAlways on = 0VACAlways off = 240VACAlways on = 0VACAlways on = 0VAC

Relevant model numbers:  1065923121 , 1065923160 , 1065923161 , 1065923200 , 1066025120 , 1066025150 , 1066025151 , 1066025160 , 1066025201 , SCD272T , SCD302T , SCE30500W , SCE30600B , SCE70600B , SCE70600W , SC272T , SC301T , SC302T , SMWS72YP AFTER S/N 8204 , SMW272B , SMW272P , SMW272S , SMW272W , SMW272YB AFTER S/N 8204 , SMW272YS AFTER S/N 8204 , SMW272YW AFTER S/N 8204 , SMW272ZS AFTER S/N 8204 , SM272B , SM272S , SM272W , SM272YB AFTER S/N 8204 , SM272YS AFTER S/N 8204 , SM272YW AFTER S/N 8204 , SM272ZS AFTER S/N 8204 , SVD48600B , SVD48600PF , SVD48600PG , SVD48600PK , SVD48600PR , SVD48600PT , S272T , S301T , S302T

Relevant part numbers: 35-00-760, 12001691, 492071, 14-38-901, 492069, 492067