Protect mode is an inbuilt safety feature of your amp to avoid damage to internal components. J. jamie2112 Banned. If your fuse were to blow and the device continued to run the amp could become damaged. If the Protect Mode Light Turns On . Incorrect use of the gain can and will cause the amp to blow. If you connect a component back up, and the amp goes into protect mode, then it’s a safe bet that the problem has to do with that component or related wiring or cables. Well the question explains itself really.My 1600 watt amp is connected to 2 15's(2 1500(each) watt Pyle). Solution: This can be caused by too low of an impedance from the way the speakers are wired, and sometimes a poor charging system (if the amp goes into protect when the volume is turned up). I had an amp that blew cause the gain was set too high. Only p.13 section 2.2 of the manual you’ll find the flow charts for the red light protection mode. BTW, I only blew the amp cause I was trying to see what the hightest gain setting it could handle. After that you’ll have to use the schematic diagrams found on p.21/22 to determine where the fault lies. If wiht no rca input and the speaker wires are good, you just might have a blown amp. This prevents the fuse from blowing. When it was working the power light was turned on and the protection light was turned off.Now that its not working the power light is turned off and just the protection light is turned on. They were working great till it just suddenly stop working. For space constraints, I'll leave it at that. Sometimes you can open the amp up and find physically fried components. When the device goes into protect mode, the unit will shut down, and the standby light will blink continually. ... to do as it not only save you the hassle of having to send the unit in for repair but also save them having to repair their products on warranty just because the user get carried away occasionally. Sony receiver in protector mode FIXED! Once my cap was powered up and ready to roll, the amp still hadn't worked. What should I do when my amplifier goes into protect mode? If your amp has a “protect” light, and it’s on, then chances are good that you have a faulty speaker, subwoofer, cable or another component. Wonder of Wonders, it worked. That one went into protect mode too. I had the same “protect” problem with a Sony STR-AV1070 I was ready to take a hammer to. The rest of that day (Saturday) I worked on installing my Amp and fixing the things we went wrong with during the installation. Assuming the reason for the protection has passed or been fixed, the unit can now be turned off and then back on with the "main zone" power button to restore normal operation mode. I noticed that the protection button stays a constant red, but the amp still powers on and my REM cord still lights up and starts the fan. If the protector activates again, the fault is still present and the unit needs to be repaired, ideally by a Yamaha authorised repairer. Thanks for the tip. I can turn the volume up now . For instance, a speaker with a shorted out or damaged coil can cause problems. Depending on which condition is being shown the problem is either in the power amp circuit or the temperature detection circuit. Amplifiers are often designed to go into “protect mode” to avoid further damage to internal components. • Amplifier is in protection mode • Contact your local Harman Kardon service center due to internal problems . If your amplifier goes into protect mode, try disconnecting the speakers. Problem: Amplifier goes into protect. I checked all the connections such as the ground, power and speaker cables. If the protect mode light disappears once you do this, you can conclude that there is something wrong with the speakers. Tried the disconnect/reconnect of all internal connectors.