Question about Amana AOCS3040 Electric Single Oven

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Amana Convection oven not controlling temp

Amana Convection oven Model NO. AOCS304055
It has 3 elements: broil, bake, convection, the bake element is "hidden".

Problem, on normal bake, the oven will not maintain temperature (60 degrees low). It preheats fine but then the temperature drops.

What I know:
-Convection Cooking cycle works fine and controls temperature properly.
-The coil resistance of the bottem baking element is fine (28ohms)
-Power is getting to the coil (measured at the coil terminals)
-During preheat the coil is energized about 25% (15 sec on 45 off)
-During bake, the coil is only energized only about 4 seconds every 60 sec,
even though the temperature is well below the set-point.
-Trying a clean cycle, the motorized door lock latched, but after the cycle
was canceled, it was stuck latched for more than a day, even after cycling
power, we repeatedly got the F9 error. It took a deliberate "reset" to clear
it. Not sure if this is related.

Trouble shooting Done:
Relay board replaced
Calibrated temperature & within 10 degrees of setpoint in convection mode
Verified power to bottom coil
Verified coil resistance

The thermocouple & controller are fine because convection mode works
The bottom coil is fine because it heats properly in preheat, and has normal

Should the convection coil turn on during normal bake (it doesn't), or bake
Why would the controller not turn on the bottom element more if the temp is well below the setpoint?

Any troubleshooting ideas?

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Re: Amana Convection oven not controlling temp

I have just checked the baking guide in the manual and have found that it may not be us after all. (Maybe this is why they telll us to read the whole manual. Well, I never have) According to the cooking time for Baking, the range is very extensive. For example, an angel cake at 350 could take from 28-50 minutes, buscuits at 375-400 could take 8-16 minutes, layer cakes at 350-375 could take 25-40 minutes, pound cakes at 325-350 could take 45-70 minutes and fresh pies at 400-450 could take 35-60 minutes. Basically, the baking directions on the box means absolutely nothing to use Amana oven owners. We have no choice but to cook our food or baked goods until they are cooked, whenever that may be. :) Linda

Posted on Dec 30, 2007

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