The PROTECT and PUSH POWER messages will flash alternately when the protective device of the amplifier has been activated because a strong signal was input, or if there is a short-circuit detected.
To resolve the issue, turn the amplifier off and leave it off for at least 30 minutes. If the issue continues to occur after the unit is turned back on, check the speaker cables to eliminate the short-circuit problem.
NOTE: It may be necessary to replace the speaker cables to resolve the issue.
If the issue is still unresolved, service may be required.