One of the most common reasons why people have trouble starting their snowblower is because of ice that builds up when the snowblower is not in use. To prevent ice from building up inside your snowblower, it is wise to conduct regular maintenance on your shed, garage or wherever else you store your snowblower when not in use.
Now, if your snowblower has already started having issues starting due to ice, you have to defrost the ice that has built into the machine. The best way to do this is to let the snowblower sit in a temperature controlled room like a garage for an hour or two to allow the ice to melt naturally. If you are in a hurry and need the ice defrosted, however, the best way to do this is to pour cool or lukewarm water on the ice. It is important to use lukewarm or cold water because hot water can actually cause the ice to melt too quickly and, as it cracks, could do damage to the snowblower. Cool water will minimize this risk while still melting the ice. After all, even cold water is warmer than frozen water.
When a snowblower starts having trouble, people automatically start to believe that something must be wrong. Most often this is not the case. Common reasons why a snowblower fails to start can be fixed by doing simple maintenance. Something as simple as cleaning the fuel injectors (on a petrol-powered snowblower) or making sure that the battery is fully charged can be effective.