To ensure you are using the correct rating of fuse simply divide the total wattage of your appliance by 250 and round up to the closest value. For example, a 1500 watt hair dryer should be fitted with a fuse equal to 1500 divided by 250 = 7amp
If a dryer is really not good to begin with, nothing you can do can stop it from getting damaged. But one way to prevent the dryer fuse from blowing is by ensuring that it is hooked to the right connection. Make sure the voltage is right. Avoid overloading the electricity socket. Clean the lint screen as well. If lint gets in the way of proper air exhaustion inside the dryer, it might overheat.
Your heating element is going out and that is why the fuse blew as well. You will need to have the heating element replaced in order for the dryer to work like it did when you bought it.
I also need to know, when checking to see if the thermal fuse is good or not, do I have to remove it from the dryer totally to use my omh meter?
Assuming your dryer blower does run, then you must have one of the phases dropping out. Check all electrical connections at the breaker or fuse box, dryer receptacle, and wiring going into the dryer. If your blower runs, then your neutral is probably okay. Check one of the "hot" leads. I suspect one has come loose, or wasn't fastened at all.
Check the fuse box. Most large appliances have their own fuses. So the room electric will work but the fuse may be tripped.
You wouldn't need to change the fuse while you use the saw. The fuse is there to protect the house wiring. The saw should have it's own internal protection.
Normally a thermal fuse has nothing to do with the dryers ability to run only to heat...
You can find the user manual for Frigidaire dryers on the YouserGuide website: http://www.youserguide.com/wiki/Category:Frigidaire:Dryers Hope this helps.
The fuse is there to disconnect the supply when there is a short circuit, before any damage is done.
If you are referring to a cloths dryer, the answer depends on the requirements of the dryer. Most dryers require AWG#10 wire with a 30 amp fuse. If the wiring is AWG#12 then use a 20 amp breaker but never use it on AWG#10 which requires a 30 amp breaker. If you are referring to a hair dryer then yes a 20 amp breaker is fine.
Electrical work is dangerous and should only be performed by a qualified electrician