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GE Oven (JTP14WV2WW) F2 error

GE F2

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#1 linust

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Posted 13 February 2014 - 07:32 AM

70 minutes into a 2 hr self clean cycle, F2 error (Oven Over Temp).

Oven does not appear to be over 990*F (spec limit for sensor error)
Lock circuitry operating properly (locks when cycle starts, unlocks when cool)

Band Sensor?  Circuit reads 1048 ohms at room temp, 2450 ohms when the fault occurs (spec is 1100 and 2600).

These are at the ECR connector, so implies no issue with sensor wiring or connectors.

Component compartment (where all the electronics, cooling fan, lock and switches are) hits 215*F when the fault occurs.

I could not check if the Thermal Limit Switch was open or closed, but all behavior is that the switch has opened--alarm sounds until compartment temp drops to 190*F. Switch specs are to open at 225*F and close at 190*F...Does the component compartment get so hot during cleaning that is a 10*F shift in the switch is enough to cause a fault? Anyone know the design spec on temperature in the component compartment during self cleaning?


Thanks!


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#2 Chat_in_FL

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Posted 13 February 2014 - 09:04 AM

Check cooling fan operation, had one of these where the fan blade was stuck. Same symptoms.


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#3 linust

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Posted 13 February 2014 - 09:19 AM

Check cooling fan operation, had one of these where the fan blade was stuck. Same symptoms.

 

Should have mentioned...yes, fan is operational.  Goes on around 150 (going up) and off about 110 (going down)



#4 DurhamAppliance

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Posted 13 February 2014 - 10:09 AM

Self clean is a feature universally condemned by experienced techs because of the damage it inflicts on a range. Every time you run it, you effectively reduce the longevity of the board, sensors, circuits, insulation etc. Because of this and if your error only occurs during self clean cycle, the best advice would be not to run the self clean cycle and be thankful no further damage occurred.

If you still intend to repair it, check to see if your mainboard is exposed to the extreme heat... if so, there may be a venting problem directing heat to the board or insulation problem preventing heat from affecting the board. If not, you may need to replace the board.

Edited by DurhamAppliance, 13 February 2014 - 10:13 AM.

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