[weel]

I have an amana sdc25tl side by side fridge. the coil in the freezer is frozen over. it seems the fan to circulate air is not working. i have checked the ohms on the defrost coil and get 28.6 ohms. so i think that is good. the defrost thermostat looks like it might be coming apart. it looks like a pop can does when it is frozen. however 120 volts does pass thru it, when it is not touching the coil. if that makes sense. when the thermostat is hooked to the coil "physically" it does not let 120 volts pass thru. i think this might be my problem but im not sure. can i bypass this timer to see if it works without frying anything.
looking at the wires it looks like the power goes as follows
from defrost coil to defrost thermostat to fan.

i read where people talk about a defrost timer to adjust but i don see one where im looking..

thanks in advance bill