I'm not familiar with the Capital brand but most all ranges/ovens with electronic controls have cooling fans. The fan is to cool the electronics, not the oven cavity directly. The fan may run for a while after the oven is shut off to keep the electronics cool of residual heat dissipating from the oven cavity, but also runs while the unit is being used if enough heat is built-up to potentially damage the electronics, which surely would the case on several hours of use baking a turkey.

My parents' Whirlpool double wall oven has a cooling fan that turns on immediately when either oven is started, as I recall. Interestingly, my GE Profile range does not have a cooling fan.

Can't speak to the Capital but I've been doing some oven shopping and reading owners manuals in the process. They all have stated the cooling fan will come on when the oven is turned on. Sounds normal I guess.

The Capital is all gas, so as far as I know cooling the electronics shouldn't be necessary, but if other ranges do the same then I guess it's normal. Thanks!

My DCS is all gas and it has a cooling fan.

Some residential gas ranges, like most commercial ones, do not have any cooling fans.

Not only is it another component that could break (sometimes the oven will not run at all if the fan fails) but the fan also draws away the heat from the cooking cavity in an attempt to keep electronics, panels, knobs or doors cool.

Weissman, does it run while you are baking? (I assume so since the Capital is a virtual twin the the DCS.) I just think it's odd to suck heat out of the oven while you're cooking in it.

I think it does sometimes but I'm not sure when it decides to come on.

There's probably a thermal limit switch inside--once the temperature gets too high wherever the switch is reading the temperature it kicks on the fan. The fan turns off once the lower set temperature is reached.

does anyone know if the bluestar has a cooling fan? does the OP have an AG range?