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

Thermador Oven Control Board 486752 / 14-33-347 – Door Lock Sequence and Errors

Are you having door lock problems with your Thermador control board 486752 or 14-33-347,  487604 or 316080103.   At www.FixYourBoard.com, we get questions about the door lock operation for this controller.  This post addresses this by describing the sequence of events when the controller is programmed for a clean cycle.    We hope this information will help you  troubleshoot door lock issues with the following model numbers: RDDS30, RDDS30QW, RDDS30V, RDDS30VQB, RDDS30VQB, RDDS30VRS, RDDS30VRS, RDFS30, RDF30, RDF30QB, RDF30QW, RDF30RS, RDF30RS, RDSS30, RED30V, RED30VQB, RED30VQRS, RED30VQW, REF30, REF30QB, REF30QW, REF30RS, RES30, RES30QB, RES30RS, RES30W, RDDS30, RDDS30QW, RDDS30, RDDS30V, RDDS30VQB, RDDS30VRS, RDFS30, RDF30, RDF30QB, RDF30QW, RDF30RS, RDSS30, RED30V, RED30VQB, RED30VQRS, RED30VQW, REF30, REF30QB, REF30QW, REF30RS,  RES30,  RES30QB,  RES30RS,  RES30W.

State 1 -Clean Button Pressed and Time Set  (Door still unlocked)

Note that the blue display show that clean mode has been selected and the total time for the clean mode.  The state of the switches is shown in the diagram.  Pins 7 and 8 are shorted together with switch #1.  This is the un-locked state.

Thermador_486752_clean_start1

State 1 -Display As Soon as Clean Time is Programmed

State 2 – Automatic Door Locks are Running (One Second after State 1)

After a second in state 1, the following happens:

  1. The clean light comes on.
  2. Controller turns on the door lock motor.
  3. This state only last until motor releases switch 1 and pins 7 and 8 are no longer connected.

 

Thermador_486752_clean_start2

 

State 3 – Lock Motor Still Spinning and Switch #1 is Not Pressed anymore.

Pins 7, 8 and 9 are not connected and the motor is still spinning.

Note that the display shows the “locked” even though switch #2 is not pressed yet and door is not locked.  

 

Thermador_486752_clean_door_all_pins_open

 

State 4 – Lock Motor has Stopped Spinning Because Switch #2 shorted pin 7 to 9.  Oven has turned on the heating elements.

Note that the display now says “ON”.  This means that switch #2 was pressed by the lock motor which shorted pin 7 to 9.  The oven will now reach cleaning temperature.

 

Thermador_486752_clean_on

 

State 5 – Fault State.  If the controller does not sense the door lock on pins 7 and 9.

In this fault mode, the controller will beep and show door on the screen.

Thermador_486752_clean_door_error

Error State – Control did not receive the locked signal on pins 7 and 9.