is there anyway to stop the defrost cycle from happening evry 34 minutes?

The control board in the outdoor unit has defrost connections for 30, 60 or 90 minutes. Just move the wire from 30 to 60 or 90. This is a 24 volt connection.

Is there a possiblity you have a leak in the coil or heating element? I am used to working with ac not heater but if a leak occurs and your low on freon it will continuosly roll over into defrost.

This board does not have those connections.

I had a tech come out and he said the charge was correct.

What is the model and serial number of your unit? I will look at the control wiring diagram and advise you more info.

It is a Rheem RQNJ-A048JK015.  The Protech Demand Defrost Control Board is: 47-102684-83 that replaced a Ranco 47-21517-16.

I am sorry but that is a time / temperature defrost control. As long as the outdoor coil temperature is below 35 deg. it will go to a defrost mode.

stanhvac1, can tha board be changed to a Demand Defrost board?  If so which one? Thanks

I talked to Rheem tec support and there is no conversion kit for your unit. Sorry I can not give you an option.