my dryer was taking 30 to 45 minutes to dry and the lint hose got stop up (I cleaned it out) and now it takes 2 hours
Here are your parts
http://www.appliancepartspros.com/partsearch/model.aspx?model_id=5150536
And the tech sheet
http://www.servicematters.com/docs/wiring/Tech%20Sheet%20-%208572759.pdf
You need both air flow and heat so do the following to check it.
It is possible that the blower wheel is clogged with lint or the lint filter is coated with fabric softener residue reducing the air flow.
Also possible that you blew the thermal cutoff in the heater circuit.
Plus a bunch of other things.
Undo the dryer from the exhaust
Run a load
If the load dries correctly then you have a vent problem.
Clean/check the vent system. Make sure the outside louvers open fully.
If you do not want lint in the house.
Take a pair of pantyhose, put one leg into the other and attach this to the dryer exhaust.
Leave enough room behind the dryer so it can blow out like a windsock.
Run a load.
Both the above will allow you to check the air flow and temp.
Also the above is NOT recommended for a gas dryer due to possible carbon monoxide problems.