Reset button on central heat? (heater, gas, light, electric)

[cantana]

My heater is blowing cool air. Breaker was off, turned back on. But still blowing cool.
It is in a trailer with central ac/heat.
In my old place there was a reset button i had to set when it did this, but I am not sure where it would be in the new place.
can any one help?
Blower? inside.... unit outside.
My old reset was outside but the unit had been replaced (wasnt original w/trailer, didnt have blower inside) this 1 is original.

[Tesaje]

Don't know what kind of fuel you have. When mine does this, it means the igniter has broken and needs to be replaced to light the gas jets.

[catchick30]

no fuel..... electric.
I hate to have to call for service when i think it is just to push a button, but i cant find that button!!!!! :-(

[Tesaje]

It probably has a breaker button but i wouldn't know where it is. have you tried to find the instructions for it on the Internet?

[catchick30]

Breakers been checked. was told new ones automatically reset (so no reset button) believe a relay is bad. Having the man come and check it this morning. Hopefully it will be minor.
Thanks for the input!!