[Premium-Rx] Harris 2368 or 590a receiver

[mparkinson1]

I have one of these receiver and I am getting an error 
message stating A29 code 2 there is no module that I can find that is an A 29 not sure what it means however if I push the receiver button the error goes away and the receiver operates just fine. 
If I turn off the receiver and turn it back on the error doesn't show up on the second power up strange. 
Has any one heard of this type of error message???
thanks
Matt Parkinson Military Equipment & R 390A Depot Center