Small Engine Troubleshooting Problems? Ask a Mechanic Now.
How deep was the water! Will the charger come on and charge?
You say alarm? You mean the reverse alarm?
Do you have a voltmeter to test? Have you checked fuse at the tow/ run switch area?
What is year model, and what kind of control does it have?
Do you have air available? Remove all the control wires and blow out each connection.