Sears By GE Gas Oven Temp Control

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Sears by GE Gas Oven Temp Control

DJ -- Monday, 10 February 2003, at 9:55 a.m.

Hi:
Gas Oven Sears/GE Model 3627361892, S/N 3G206497. While using oven one day,set at 400 degrees, ERC console gave long beep and displayed F2 failure code. Immediately checking oven, it was apparent that the oven was far below 400. We went out to eat. Next day, started oven again. All appeared OK for a short while, then we got another beep and code F4 appears. Bought and installed another sensor, based on F4 reading and finding no shorting or melting on any connections ( I have the Tech data sheet & wiring diagrams that came with the oven). Oven appeared to operate normally for an hour or two, with proper heat being developed. However, after that, the temperature obviously fell off. Obtaining a oven thermometer, at 475 setting, oven temp was 320 degrees. I then did a 50 degree ramp up of temperature setting, but there was no linear reading from the oven thermometer. As a last gasp, I set the thermostat to maximum (550) and got online to look for advice. After a while, I smell a very strong smell from the oven. Looking inside the oven, the thermometer was pegged way past its' 550 degree mark. I shut the oven down and haven't used it since. Also, the 3 beep 'temperature reached' alarm no longer sounds, not even when the oven went well over the 550 setting. Further, I've recieved no failure codes since the F4 reading.

Re: Sears/GE Gas Oven Temp Control

Dan O. -- Monday, 10 February 2003, at 3:41 p.m.

: Gas Oven Sears/GE Model 362.7361892, S/N
: 3G206497. While using oven one day,set at
: 400 degrees, ERC console gave long beep and
: displayed F2 failure code. Immediately
: checking oven, it was apparent that the oven
: was far below 400.

The F2 failure code usually indicates a sticking relay in the control system. On your model that relay appears to be part of the electronic clock in which case it will likely need to be replaced. The sticking relay is a likely cause for the uncontrolled temperature condition.

The electronic control used on your model is part number WB12K0005 (aka WB12K5) which GE replaces with number WB27T10083

Dan O.

Re: Sears/GE Gas Oven Temp Control

DJ -- Tuesday, 11 February 2003, at 8:53 a.m.

: The F2 failure code usually indicates a
: sticking relay in the control system. On
: your model that relay appears to be part of
: the electronic clock in which case it will
: likely need to be replaced.

Thanks for the fast response, Dan:
Checking the Sears website, I see the replacement ERC is $140.00. I sure would like to be able to positively identify it as the culprit before I drop that kind of change. Do you have any diagnostic procedures for this relay? I see it's soldered to the board and realize it's not seperately replaceable, but would still like to nail it down for sure.

I fired up the oven yesterday and at a oven setting of 530 degrees, I get a steady 350 on the oven thermometer, with the burner cycling to keep that temp. It is apparent while it is warming up that the temperature reading on the display is rising much faster than the temperature in the oven itself. For instance, it reads 350, but when you open the door it is just a lukewarm puff of air on the face. The three beep 'temperature reached' alarm is working again, but beeps when the temperature set on the ERC readout is reached . Since the ERC reads resistance only, doesn't this indicate I'm running higher resistance than I should? It seems if I had a sticking relay, I'd have a runaway oven every time. If it is an intermittent relay fault, then it would seem I should have good temperature until the relay stuck, then a runaway condition again. This hasn't happened yet, and this problem has gone on for a month or two now. I'm getting 1100 ohms at the pins on the ERC temp sensor pins, so I'm guessing that I may have high resistance on the ERC, but I've never recieved the F8 failure code for 'ERC temp control failure'. The sensor 'short to ground' test also came up OK.

I hate to be one to ask advice and then say,"Are you sure?", but if I could afford to drop $140, I would've called in a repairman months ago. However, if that's the problem for sure, it's worth $140 to have peace with the Mrs. over this long-standing problem. Thanks again.

Re: Sears/GE Gas Oven Temp Control

Dan O. -- Tuesday, 11 February 2003, at 1:45 p.m.

: I sure would like to be able to
: positively identify it as the culprit before
: I drop that kind of change. Do you have any
: diagnostic procedures for this relay?

Other than watching it during operation and checking if it was switching when it should, no.

: Since the ERC reads resistance
: only, doesn't this indicate I'm running
: higher resistance than I should? It seems if
: I had a sticking relay, I'd have a runaway
: oven every time.

A "sticking relay" is just a description of a symptom. The relay could itself be physically sticking (a fault in the relay) or the control energizing it at inappropriate times (fault in the electronic control).

: If it is an intermittent relay fault,
: then it would seem I should
: have good temperature until the relay stuck,
: then a runaway condition again.

Faults in electronic controls can manifest them self in any number of ways. It is almost impossible to determine them to be the definitive cause instead they are just assumed to be defective if everything else checks out Ok.

: Checking the Sears website, I see the
: replacement ERC is $140.00.

I believe the part Sears is selling is a rebuilt/remanufactured control (indicated by the "R" at the end of the part number) while GE (whom manufactrered your model for Sears) has substituted that original control with an alternative. Maybe GE has found some sort of problem in the original control's design and have developed a better replacement? I really don't know.

Dan O.

Re: Sears/GE Gas Oven Temp Control

DJ -- Wednesday, 12 February 2003, at 1:04 p.m.

: I believe the part Sears is selling is a
: rebuilt/remanufactured control (indicated by
: the "R" at the end of the part
: number) while GE (whom manufactrered your
: model for Sears) has substituted that
: original control with an alternative. Maybe
: GE has found some sort of problem in the
: original control's design and have developed
: a better replacement? I really don't know.

Dan:
Where can I find the modified GE ECR? Price? I guess you're right, if it ain't one, it must be t'other.

Re: Sears/GE Gas Oven Temp Control *LINK* *PIC*

Dan O. -- Wednesday, 12 February 2003, at 1:56 p.m.

: Where can I find the modified GE ECR?

It's ERC for "Electronic Range Control" or sometimes EOC for "Electronic Oven Control".

I don't know that it definitely has been redesigned but that is often what the change in part number indicates. The company linked at the bottom of the page supplies only brand new, genuine GE replacement parts.

Dan O.
Appliance411


WB27T10083 Electronic Oven Control



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