Milennia PRV21 - Intermittent Power Issues; Buttons or Controls Not Responding; Wireless Remote Malfunctions

3.2 Intermittent Power
3.2.1 Powers on and off constantly
• Check voltage under load. At least 11V must be maintained consistently to operate the radio normally.
• If voltage cannot be maintained, load test the battery or power supply.
• Check all connections for corrosion, looseness, or other condition that can produce a bad ground.
• Check wire harness by wiggling the wire harness on the radio and the vehicle side. If the whole pin comes
out, bend the holders on the pin so that the pin will stay in the plug (see below image). If the wire comes out of
the pin, initiate a warranty claim so we can re-pin the radio.
3.2.2 Powers off and on while vehicle is moving
• Inspect all connections including the radio’s harness for looseness. Wriggle connections while the radio is
operating to produce the symptom and narrow down the loose connection.
3.3 Buttons/controls not responding
• Press each button to ensure a click is heard signifying the button is mechanically operational. If one or more
buttons do not click, initiate a warranty claim.
• Reset the microprocessor - disengage the radio from power for at least 3 seconds, then reconnect. Both red ACC
and yellow Memory wires must be disengaged to facilitate a reset of the microprocessor. If both ACC and Memory wires
are connected to a main breaker or cut-off switch/ignition switch, any of these methods can be used in lieu of physically
disconnecting the wires.
3.4 Wireless Remotes not Working
If your radio has PO H06804912, then you do not have remote capability
 Make sure the MIL-RF9-21 remote package is connected to the PRV-21. If it is not, the RX21 remote adapter is
needed.
3.4.1 Remote will not light up
 The MIL-RF9 has a thin plastic film under the battery that protects the battery from being drained during storage
and shipping. Remove this film and try the remote again.
 Replace the battery in the MIL-RF9
 Initiate a warranty claim for the remote here if you are under warranty
3.4.2 Remote Controls Wrong Functions
 Check the PO number on the back of the radio. If the PO is H05022014, then an adapter will fix this problem.
Contact Customer Support here