Mercury Pro XS 6 beep alarm code

[SHane]

2018 Pro XS 200
Had it in shop about a month ago for rough running, not topping out. Chattanooga Fish and fun said trash in the thermostats caused a plug to foul.
Today motor threw a 6 beep code. Found enough info on web to flush motor, removed thermostats and checked them. Motor seems to be running fine on water pressure and temperature. If I solved problem, how would I reset computer to see if fault was solved? Or any info on 6 beep code would be helpful. Everything I read on web said trash in thermostat.

 

[silvertalon]

Better check your oil tanks. A toasted powerhead is not covered under warranty. Stored codes in the ECM need to be cleared with a DDT by a dealer service center. No need if it's a low oil warning. Be sure to fill the reserve tank on the motor or the beeping will never quit.