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GLP85800 Whirlpool oven taking 30min to preheat

Kev1

Premium Member
Joined
Mar 25, 2022
Messages
7
Location
Canada
Model Number
GLP85800
Brand
Whirlpool
Age
More than 10 years
So I have an oven/stove model GLP85800 from Whirlpool, when baking it gives a countdown and beeps when it reached temperature, well the past week or two it started to take 30minutes or so to reach desired temperature. For example setting bake to 350° gives a countdown of around 5minutes, which has always been fine, food was thoroughly cooked but now when the countdown ends it is barely at 150°.

I searched online and did some testing, temp sensor works, hidden bake element has continuity, also turned oven to 350° while bake element connections were on my multimeter and reads 233volts. What am I missing?
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
131,550
Location
Redmond, Oregon
Disconnect power to your range and check your hidden bake element.

Look here:
Your models uses that same exact hidden back element.

Here it is:

Jake
 

Kev1

Premium Member
Joined
Mar 25, 2022
Messages
7
Location
Canada
Thanks for the reply, as stated in the original post, the hidden bake element passes the continuity test.
 

Jake

Appliance Tech - Admin
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also turned oven to 350° while bake element connections were on my multimeter and reads 233volts. What am I missing?
Ok, then if your getting 233 volts to the bake element it should be heating good.

Did you pull the hidden bake element all the way out to check it for PITS or BAD spots on it, it can ohm good, but PITTING of the element can make it not heat properly as well.

Jake
 

Kev1

Premium Member
Joined
Mar 25, 2022
Messages
7
Location
Canada
I didn’t pull it out, only tested for continuity, since the board is giving 233volts, can we assume the element is bad or on it’s way out? I will try and pull it out when I get a chance.
 

Jake

Appliance Tech - Admin
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Messages
131,550
Location
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since the board is giving 233volts, can we assume the element is bad or on it’s way out?
Yes Kev.

I will try and pull it out when I get a chance.
Ok, good. Make sure you disconnect power to the range first before you pull it out.

Jake
 

Kev1

Premium Member
Joined
Mar 25, 2022
Messages
7
Location
Canada
So I took the element out and nothing stands out but I still bought a replacement but it didn't fix the issue...
 

Jake

Appliance Tech - Admin
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Messages
131,550
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Redmond, Oregon
That's very strange, it does not make sense, that element should be getting RED HOT if you have 233 volts going to it.

I have no clue why this is happening, you will need to have Whirlpool Canada come out to investigate.

Jake
 

Kev1

Premium Member
Joined
Mar 25, 2022
Messages
7
Location
Canada
Thanks for the help, I'll retest the temperature sensor to make sure it's within normal resistance, if it is, I believe at around 20 years it's time to replace and buy a new range/oven lol
 

Jake

Appliance Tech - Admin
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Messages
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Yes, I agree with you.:)

Jake
 

Kev1

Premium Member
Joined
Mar 25, 2022
Messages
7
Location
Canada
Temp sensor is at 1075 ohms at room temperature, can you tell me if this oven has a thermal fuse? I couldn't find one, if there's none then it's time to go shopping lol. Thanks again for the help.
 
Last edited:

Jake

Appliance Tech - Admin
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Messages
131,550
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I don't see a thermal fuse on this model Kev,

Jake
 

Kev1

Premium Member
Joined
Mar 25, 2022
Messages
7
Location
Canada
ok thanks. Can a temperature sensor be defective even if it tests 1075 ohms at room temperature? If so, can temperature sensor be interchangeable? My model is 150$ CAD while I see sensors for other models for as cheap as 30$ CAD..
 

Jake

Appliance Tech - Admin
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Messages
131,550
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Redmond, Oregon
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