Some of the most effective ways to save and repair appliances like dryers and washers after a flood is to start with the electrical connections, operating components and motor.
Before tossing a dryer, washer or household appliance consider some quick repair solutions that can be done after a flood. Avoiding costly appliance repair after a flood can be as simple as unplugging and getting appliance out into the sun or in another inside location to dry. The most important thing is to get it out of the water as quickly as possible and to not start the appliance. The quicker the appliance drys out the better, then the operation functions can be tested.
The most important thing after unplugging is getting the motor(s) out of the water and moisture build up off the components as quickly as possible. This will involve opening up the appliance and disconnecting the wiring harnesses and connections at major components. Also disconnect any electrical connection to ensure they are dry, like inlet water valves, thermostats and pumps. Before disconnecting be sure to take a picture of the wiring connections and location of wiring for easy reconnection latter.
Remove the motors or other components so they can be wiped down and lubricated. Also while lubricating make sure the bearings and other moving parts are not binding and move freely. Use any kind of penetrating oil, the main focus is to get the appliance dry as quickly as possible and lubricated.
When reconnecting make sure that spade type connections are not rusted or corroded and have a shiny surface. Then reconnect and put back together after 24-48 hours depending on humidity and moisture. Another tip could be to use a small amount of dialectic grease at the electrical connections to insure good and stable connections.
After dried and put back together, place appliance in a dry location then try and turn it on. This may work and again it may not depending on the age and condition of equipment.