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FIXED Frigidaire Gas Range FFGS3025PSP - oven won’t hold temp

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Distressed bake

Premium Member
Joined
Nov 10, 2021
Messages
3
Location
Hawaii
Model Number
FFGS3025PSP
Brand
Frigidaire
Age
6-10 years
Greetings,
I’ve looked through the other oven threads but wanted to check in, in case somehow this oven is different than the others. I apologize for overlap in solutions.

We’re running on propane.
The range is almost 7 years old and I don’t know that the oven ever worked properly but I’m using it more now and it’s time to get it working the way it should.

I have a thermometer inside the oven so I can keep track of the temp and it always drops in temperature while baking. Once preheating is achieved it’s usually 5 or 10 degrees below the desired temp, so I typically set it higher than desired to account for that. Within 10 minutes the temp can drop down to 200 degrees so I’m constantly adjusting the temp while baking to try and maintain temperature. Opening the oven door tends produce a small flame burst so that can help bring the temp back up, but not for long. The heating elements are hidden in the base so I can’t see what is going on down there. An orange glow is all I can see through the two openings in the floor of the oven, or blue flames when I open the door.

Tips on what to check, how to fix and best places to purchase parts are much appreciated.
 

rickgburton

Appliance Tech - Moderator
Staff member
Joined
Jul 11, 2006
Messages
44,797
Location
Murray, Utah 84107, United States
Measure the resistance of the oven sensor. At room temp it should be around 1100Ω. I'll post a temperature resistance chart.

C-Oven Sensor Ohms.jpg


The heating elements
The "igniter" can cause that problem. They get weak over time. The igniter needs to draw 3.2 to 3.6 amps to open the oven safety valve. One way to tell if the igniter is weak is the time it takes for the gas to ignite. Turn the oven on and see how long it takes for the gas to ignite, average is 10 -15 seconds. Use an amp meter or amp probe on one of the igniter wires to check for 3.2 - 3.6 amps
C-OVEN AMPS.jpg

frigidaire-sensor-5304504897-ap6025829_01_l.jpg

frigidaire-ignitor-139013700-ap5805208_01_l.jpg
 

Distressed bake

Premium Member
Joined
Nov 10, 2021
Messages
3
Location
Hawaii
I replaced both items recommended - I’m running on propane so I still have to set the oven 15 to 25 degrees higher than the desired temperature but things are looking good. I waited a few weeks before I posted my update to see how it would work through Christmas baking and dinners and we’re in good shape. Thank you for the advice.

My model number is listed above so I did want to share some key points for the replacements that differed from the videos I found/ used for guidance. There was a bit of trouble shooting involved and the entire project (2 parts replaced and some cleaning) took almost 2 hours.

First I replaced the sensor which had to be unscrewed from inside the oven and removed from the back - top right side.

The more difficult task was the ignitor.
There are three layers of shields to remove and the burner shaft (probably not the correct term for that) is mixed in with the part that needs to be removed. The connection for the ignitor can be accessed by removing the storage drawer or maybe through the back bottom panel but I was able to manage it through the drawer cavity. The back bottom panel probably would have been an easier access point.

Images included show the temp sensor front and back and then a few images of the ignitor replacement.. though it looks like they are not in that order.

All in all, it was a worthwhile repair.
 

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