F1 Error Code in Whirlpool RB160, RB260, RB270, RB770, RF396, RM765, RM770, RS675, RS696 Series Ovens and Thermador RDDS30, RDF30, RDFS30, RDSS30, RED30, REF30, RES30, RSS30 Series Ovens

This article refers to a specific problem we’ve been encountering with two different types of oven control boards – the relevant model and part numbers can be found at the end of the article.

These control boards can throw F1 error codes in response to a variety of failures.  Often, these error codes are the result of bad power supply or logic control circuits that can be repaired at FixYourBoard.com.  However, we have been finding that even after a control board is rebuilt and passes a full function test, it still throws F1 when reinstalled in the original oven.  How can this be?

Electronic Control Board Rebuilds

Electronic Control Board Rebuilds

It turns out that these control boards connect to the platinum temperature sensing rods through wire nuts.  The connection in the wire nut is going high resistance, which causes the control board to think the oven cavity is over temperature…resulting in an F1 overheat error code.  This connection seems especially susceptible to temperature change as well, so this problem is especially apparent as you start heating the oven.

So, if you’ve had your board rebuilt by FixYourBoard.com or recently got the board replaced, and you’ve replaced the temperature sensor, but you’re still getting an F1, inspect these wire nuts!  The easiest way to find the wire nuts will be to follow the wiring with your hand (make sure the breaker is off) from the temperature sensor (or from the board if you know which wires go to the sensor).

You will likely find that the wiring inside the nut has rusted/corroded.  We recommend you cut off the already exposed portions of the wire and strip some insulation off, allowing “fresh” wire to be reconnected in a new wire nut.

Remember to have all your control board needs handled at FixYourBoard.com!

 

Part Numbers: 14-33-347, 3169256, 3169257, 3169258, 3169259, 486752

Model Numbers: RB160PXB02, RB160PXBB2, RB160PXYB6, RB170PXB02, RB170PXBB, RB170PXBQ2, RB260PBYQ, RB260PXB1, RB260PXBB1, RB260PXBB2, RB260PXBQ, RB260PXBQ1, RB260PXBQ2, RB260PXYB, RB260PXYB0, RB260PXYB1, RB260PXYQ, RB260PXYQ0, RB270PXBB0, RB270PXBB1, RB270PXBO1, RB270PXBQ2, RB270PXY, RB270PXYB, RB270PXYB RB270PXYB-0, RB270PXYB1, RB270PXYQ, RB270PXYQ0, RB270RXBB1, RB760POXYB2, RB760PXB, RB760PXB01, RB760PXBB0, RB760PXBB2, RB760PXBQ, RB760PXYQ, RB770PXBB1, RB770PXBQ1, RB770PXBQ2, RB770PXYB, RB770PXYB5, RDDS30, RDDS30QVB, RDDS30RS, RDDS30RVS, RDDS30V, RDDS30VPS, RDDS30VQ, RDDS30VQB, RDDS30VQS, RDDS30VQW, RDDS30VRS, RDDS30VRS/01, RDDS30VRS/02FD, RDDS30VRS/03SD, RDDS30VRS03, RDDS30VRSFD, RDDS30ZQB, RDF30, RDF30Q, RDF30QB, RDF30QS, RDF30QW, RDF30QW RDF30RS, RDF30RS, RDFS30, RDFS30QS, RDFS30QW, RDFS30RS, RDS30V, RDS530RS, RDSF30RS, RDSS30, RDSS304S, RDSS30Q, RDSS30QB, RDSS30QW, RDSS30QW RDSS30RS, RDSS30RS, RDSS30RS-02, RED30RS01, RED30V, RED30VQB RED30VQBK, RED30VQW, RED30VRS, REF30, REF30QS, REF30RS, RES30QW, RES30RS, RF396PXYN, RF768PXYQ, RFB260PXBQ2, RH770PXBQ2, RM765PXAB0, RM765PXBB2, RM770PXBB1, RM770PXBB2, RM770PXBQ2, RS6755XYN1, RS6755XYW0, RS675PXBQ1, RS675PXBQ2, RS675PXYQ0, RS677PXYQ, RS696B02, RS696PXBB2, RS696PXYB, RS696PXYB0, RS696PXYB2, RS696TXYQ02, RS69PXBB3, RSS30RS, RX260PXYQ01, W305B, WPLRM770PXAB0

Home Diagnostics for Your RDD, RDS, RDF, RED, REF, RES Thermador Oven Range Cooktop Stove

Is your Thermador oven throwing error codes, not heating to set temp., or malfunctioning in other ways?

You may need to have your control board repaired, but the problem could also be failing hardware in your oven.

Luckily, these boards have a built-in diagnostic feature that can tell you where the problem is.  To enter the diagnostic mode, you need to have the breaker to your oven shut off.  Hold down the “Stop Time” button (center button) and have a friend turn the breaker back on.  Until the button is depressed, the control will beep and show the microprocessor ID in blue digits and dashes in red digits.  Once “Stop Time” is depressed, the control will stop beeping and show dashes in both the blue and red digits.

14-33-347,486752

Display shows Microprocessor ID and dashes when you enter Diagnostics Mode.

From here, you can test all the various functions of the oven control.

Holding any of the cooking buttons (Convection, Bake, or Broil) will energize that element relay while the button is held in, and the display will show “ON”.  You should hear a *click* whenever the relay turns on or off.  Depressing the button turns the relay off.

Holding the Clock button will energize the door latch relay and illuminate all display segments.

Holding the Stop Time button will cause the board to beep and show the same screen as when you entered Diagnostics: 4 digit Microprocessor ID and dashes.

Holding the Cook Time Button will show the  EEPROM checksum in blue digits and the current oven sensor temperature in red.

Holding the Timer button will cause the control board to beep.

Holding the Clean button will reveal the current state of the door latch.  Depending on which revision of the control board you have, there are 4 possible conditions, represented by either numbers 0-3 or 4-7…

  • 0 or 4: Latch in transition between states. Unlock Switch 1 and Lock Switch 2 are both open.
  • 1 or 5: Fully Latched (door closed). Unlock Switch 1 is open and Lock Switch 2 is closed.
  • 2 or 6: Fully Unlatched. Unlock Switch 1 is closed and Lock Switch 2 is open.
  • 3 or 7: Invalid Latch State. Unlock Switch 1 and Lock Switch 2 are both closed.

Pressing Cancel/Clear/Off will exit the Diagnostic Mode.

 

 

So, this is a powerful troubleshooting tool.  For example, if your oven isn’t heating properly, use diagnostic mode to figure out which element isn’t heating.  Hold Bake, you should hear the Bake relay click, and the Bake element (bottom) should heat as long as the button is held in.  If you hear the click, but there’s no heat, check the wiring to the element and the element itself (hardware specs below).  If the hardware is good, then the control board needs to be sent in for repair.  Even if the relay clicks, it can still have bad contacts.

Or, perhaps the oven isn’t heating properly because there is a failure in the temperature sensing circuit.  Hold the Cook Time button to reveal the oven sensor temperature.  If the oven has been idling at room temperature, then the red digits should display something around “070” (70 degrees).  Anything drastically different than this means there is a definite problem.  Check the wiring to the oven sensor and the sensor itself.  If the hardware is good, then the control board needs to be sent in for repair.

There are is a variety of possible failures for these ovens.  Using the diagnostics mode can help you find which circuit is faulty, and then you can use the table below to determine whether it’s a hardware problem or control board problem.

 

DANGER HIGH VOLTAGE!  You do not need power to the oven to make these measurements. Please cut the breaker.

HARDWARE TERMINALS RESULT
Bake Element E6** 18-26 Ω
Broil Element E7** 12-20 Ω
Convection Motor E2 to E8 55-80 Ω
Latch Motor E2 to E5 835-870 Ω
Temperature Sensor J1: pins 3 to 5 ~1080 Ω at Room Temp

**NOTE: The motors and sensor checks test the hardware and relevant wiring simultaneously.  There’s no good way to test the heating elements and their wiring at the same time.  Check the resistance of the elements at the ends of the element, and then individually inspect the wires from the ends of the elements.

 

This troubleshooting guide applies to the following Part and Model numbers…

P/N: 14-33-347, 35-00-571, 35-00-751, 486752, 487604

M/N: RDSS30, RDDS30V, RDFS30, RDDS30VQB, RDF30, RDF30QW, RED30V, RDDS30VRS, RDDS30VQB, RDDS30, RDF30RS, RDDS30QW, RES30, REF30QW, RES30QB, RDF30QB, RED30VQRS, REF30QB, RES30RS, RDF30RS, RED30VQB, RED30VQRS, RED30VQW, REF30QB, REF30QW, REF30RS, RES30QB, RES30W

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

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

Meaning of F1,F2,F3,F4,F5,F6,F7 codes for Garland/Manitowoc Ovens

Garland oven controllers are programmed to give meaningful information if they enter into a fault condition.  This applies to most Garland ovens such as models: UCO-G-5, ECO-G-10, ECO-G-20, ICO-G-10, ICO-G-20, IC0-E-10 , ICO-E-20, ECO-E-10, ECO-E-20,MP-ES, MP-ED, MP-GS, MP-GD, PaceSetter EC-I-36, EC-II-36, EC-I-42, EC-II-42, GC-I-36,GC-II-36,GC-I-42,GC-II-42, Trendsetter ovens TE3, TE4, TTE3, TTE4, TE3/4-x, TTE3/4-X, TE3/4ECH, TTE3/4ECH, TG2A, TG3,TG4,TTG3,TTG4, Sunfire SDG-1 and SGD-2, TE2A, KFC MCO-G-5K and others.

Many times the result of the F code troubleshooting points to the control board /Timer/ERC.  Don’t worry, they can be rebuilt even if the part is no longer available (NLA) or obsolete.  With www.garland.fixyourboard.com , you will never have to scrap a commercial oven due to failed electronics.

Some part numbers that throw F-codes are: 1517700, 1517701, 1517702, 1517703,1544800, 1517704,1517705, 1517706, 1517710 ,1544801, 1933801, 1933701,4521705,4521282, 4515873, 1025299, 1025204,1034199, 1244705, 1285601, 1025204, 1244704, 1285700, 1905701, 1025204,1244705, 1905601 among others.

Here is a summary of the fault codes and their meaning:

F1Relay Output is Enabled When Not Cooking. The cook relay is closed with no call for heat.
-Control should be rebuilt.

F2 Over Temperature Alarm. The control is sensing an oven temperature 50 degrees or more above the
maximum temperature of 500F
.
-Check the probe wiring and the probes resistance  and replace if faulty
-If probe is functional, rebuild control.

F3Open Probe Circuit. The control is sensing an open circuit at the probe input.

-Check the probe wiring and the probes resistance and replace if faulty.

-If probe is functional, rebuild control.

F4Shorted Probe Circuit. The control is sensing a short circuit at the probe.
-Check the probe wiring and the probes resistance and replace if faulty
-If probe is functional, rebuild control.

F5Relay outputs not enabled when cooking. The control is in cook mode and the heat relay is not closing.
-The control should be rebuilt

F6No 60Hz input. The control does not sense the input power.
-Check the power supply for noise
-If the supply is correct, rebuild control.

F7 EEPROM. The control has detected that the calculated EEPROM check sum is incorrect.

-Reset power to control and if problem persists, rebuild control.