Volfenhag zx 8200 amplifier cooling fan not working

No, it's only use to control the gain or level from zero to what u set it to

• 2 Channel Bridgeable 1200W Power Amplifier (4 ohms)
• 2 Ohm Stable Stereo

ZX 8290 Volfenhag 2 Channel 1200 Watt Bridgeable Power Amplifier

It sounds like your amp has lost a channel, based on the testing you have done so far.

Devices with several light emitting indicators would each display as observation of manufacturers installed features. Red indication is power cciuit indication, yelow as alternate warning where green is indication of regular fucntionality. Once the device is least malfunct, every light is an equal expectation. Usually with amplifeiers, the red light has to be on throughout until stereo became powered on to porduce green light effects as radio expectations.

volfenhag's are cheap. you get what you pay for. that is the german equiv. to pyramid or kraco.

ckeck your + s and - s, otherwise it could an interal problem in the amp

Amplifier Class AB
Number of Channels 2
RMS Power (4 ohms) 120 watts x 2 channels
RMS Power (2 ohms) 200 watts x 2 channels
RMS Power (1 ohm) Not Stable
Bridged RMS Power 400 watts x 1 channel
Total RMS Power Output 400 watts
Peak Power Output 1000 watts watts x 1 channel
Minimum Impedance Unbridged 2 ohms
Minimum Impedance Bridged 4 ohms
THD at Rated RMS Power 0.1%
Speaker Level Inputs No
Preamp Outputs 1 pair
Built-in Crossover High-pass (HP), Low-pass (LP), Full (AP)
High-Pass Crossover Frequency 40 - 250 Hz
Low-Pass Crossover Frequency 40 - 250 Hz
Subsonic Filter N/A
Signal-to-Noise Ratio N/A
Channel Separation N/A
Bass Boost 0 - 18 dB
Bass/Gain Remote Yes
Fan Cooled Yes
Fuse Rating 20A x 2

check speaker wire is not grounded and/or the proper impedence is followed. Those amplifiers are 2 ohm stereo stable. Know the difference.

Remove speaker wires and try amplifier.
Add 1 speaker at a time until the problem recreates itself, or test them with an ohm meter.

You must remove the 12v power source from the remote turn-on terminal of the amp to make it switch off. This is generally done by connecting the remote turn-on terminal to the head unit's power antenna or system control terminal. When the head unit is switched off, the amp will go off.

It's most likely that the over-current protection is tripping at high power. At lower voltage, the amplifier can't produce as much output power and therefore can't produce enough current to trip the protection circuit.

You need to check your speakers to make sure that they are not shorted. With an ohm meter, the resistance across the voice coil shouldn't read any less than ~90% of the rated impedance.

If the speakers and the wiring are OK, the amp may have an internal fault causing the amp to go into protection.

Let me know if you have any other questions.