Troubleshooting
Problem | Possible Cause | Corrective Action |
Amplifier does not | No power to +12V | Check fuse(s) |
turn on | terminal |
|
| No power to REM | Check head unit fuse(s) and |
| terminal | wiring |
| Blown main fuse at | Replace fuse and identify |
| battery | cause of failure |
| Blown fuse at amplifier | Replace fuse and identify |
|
| cause of failure |
| Faulty ground | |
|
| ground to bare metal |
|
| chassis |
Volume control too | Input level control | |
sensitive | adjusted too high | (refer to page 8) |
Distorted sound | Input level control | |
| adjusted too high | (refer to page 8) |
Blows fuse(s) at amp | Power wires connected | Reconnect power wires |
| backwards | properly |
| Internal problem with | Take unit for service |
| amp |
|
Engine noise / | Ground loop(s) | Use good quality shielded |
Alternator whine |
| RCA cables |
| Faulty ground at amp | |
|
| bare metal chassis |
| Faulty ground at head | |
| unit | clean bare metal chassis |
| Inductive coupling | |
|
| speaker wires away from |
|
| factory harnesses |
| Input level on amp set | |
| too high | to page 8) |
Thermal protection | Amplifier driving 2 ohm | If the amplifier “thermals” |
activated | load for long durations | frequently while driving |
|
| subwoofers, install fan to |
|
| keep amp cool. |
13
PowerPlus Amplifiers
Short circuit | Blown speakers | Check all speakers |
protection activated |
|
|
Speaker wire(s) shorting | Check for faulty wiring | |
| to ground |
|
| Defective crossover | Faulty passive crossover |
Low impedance | Amp connected to | Check speaker connections |
protection activated | improper load |
|
| Amp will not drive a 1 | Verify that speakers are |
| ohm mono load, 2 ohm | connected properly |
| minimum in mono |
|
| configuration |
|
| Speakers defective/ | Check speakers |
| blown |
|
| Faulty passive | Check crossovers |
| crossovers |
|
Poor bass response | Speakers out of phase | Check speaker polarity; |
|
| reverse the connection to |
|
| one speaker only if two |
|
| subwoofers are connected |
|
| to the amplifier. |
NOTE: If the protection light is activated with no speakers connected to the amplifier, and all the power connections are correct, this would indicate an internal problem with the amplifier.