I have a Weaver Pacific NH I-4. It has been running exceptionally on its TMCC control on a Lionel Legacy System. Yesterday while running it around the layout the whistle started blowing randomly and quite often. I tried cleaning the wheels on both the engine and tender but to no avail. Has anyone experienced a similar issue? As always, all opinions are most appreciated. Bill
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If this engine has TAS EOB it could mean a problem with the tach sensor. It may have moved or a wire is broken between it and the main board.
Pete
Pete, these had ERR as far as cruise when delivered. I’m guessing they got the whole package for sound and radio boards from them.
I think knowing exactly what electronics are in them would be key to trying to diagnose what is happening. 
Thank You gentlemen, Checking that out is above my pay grade but I have access to a person who can help me. At least I know it is in the electronics. Many thanks, Bill
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