Oven thermostat & temperature

[macblack]

Hi, looking for some advice.

The wife recently said the oven doesn't cook food the same way it used to (recently a chicken pie came out cold in the middle). So I bought a oven thermometer, put the oven on 200c and after about 7 minutes the light went out. I checked the oven thermometer but it was only reading about 140c.

I assumed it was a faulty thermostat, so I bought and fitted a new one.

I repeated the test and got exactly the same results.

I borrowed an infra red thermometer from a friend and again repeated the test. The oven thermometer was still reading 140c. Interestingly the infra red thermometer said the back of the oven was 200c but when I pointed it at the oven thermometer it had a reading of 140c!

Its a fan oven so I assumed an equal temperature all around. If you leave the oven thermometer for 25-30mins it does eventually get to 200c.

So I'm a little confused and would appreciate any insight.

Thanks in advance.

Mac

 

[macblack]

Sounds like the fan isn't circulating correctly then. Is the fan still attached to the motor shaft?

yes and its definitely turning, not only can you see it, you can feel the air being pushed around the oven.

 

[telectrix]

so.. fan problem eliminated... element problem eliminated. ..thermostat eleiminated. leads to conclusion..new oven.

 

[freddo]

The last thing I can think of if the stat has been replaced, is the door seal in good order?

 

[UKMeterman]

The other thing which has crossed my mind is one of the elements is faulty when hot, clamp the current when the elements are on and does it tie up with the rating of the elements.