Anthem M1 - Manual (Page 17)

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4 flashes: Temperature exceeds limit. Make sure there is adequate ventilation. The amp will resume operation only once internal temperature drops
within acceptable range (4 degrees Celsius less than fault).
6 flashes: Average input current exceeds limit. This fault is activated to avoid nuisance AC input interruption. This condition can occur if two or
more speakers are connected in parallel. The amplifier should be connected to a dedicated circuit. Disconnect other equipment from the circuit, or
use a different one, or reduce volume, or use a 240V circuit.
7 flashes: Ground fault. One of the two speaker wires is touching another conductor or something made of metal. Inspect wires and connectors
and make sure they do not touch other wires or amplifier chassis or any piece of metal.
8 flashes: DC output voltage exceeds limit. May result from excessive content below 10 Hz or excessive DC offset from the source connected to
the amplifier’s input. To check for the latter, unplug the source while it’s playing and observe whether fault condition stops.
9 flashes: Amplifier rail voltage out of range. This can happen under high load using a 120V line. Try a 240V line or lower volume.
10 or 11 flashes: Unlikely to occur when properly installed although can happen under excessive clipping. Lower volume and if error reappears
contact technical support.
There are no fuses in the power path. If a severe overcurrent condition occurs the AC line breaker on the rear panel will trip. To reset,
push it back in.
3. LED INDICATION CODES
(continued)