(SECTION SIX: Troubleshooting continued)
Error Codes
In the event of a problem, the power status indicator (2) will flash error code(s) in red. Errors are identified by a sequence of 3, 4, or 5 flashes. There is a pause between codes, and in the case where there is only one error code, the same code is repeated.
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| Diagnostic Code | Possible Condition | Course of Action | |
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| 3 flashes | Excessive current draw | Check loudspeaker and | |
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| cables for short circuits. | |
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| If you are driving more | |
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| than one loudspeaker | |
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| per channel, check that | |
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| the combined load does | |
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| not drop below 2 Ohms. | |
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| The power breaker | |
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| switch must be shut off | |
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| to reset the fault condi- | |
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| tion. | |
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| 4 flashes | Excessive temperature | Allow the amplifier to | |
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| cool, and increase venti- | |
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| lation. If the problem | |
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| persists, please call the | |
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| factory. | |
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| 5 flashes | Excessive DC at input | Check the preamplifier | |
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| output and source out- | |
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| puts for excessive DC | |
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| voltage. | |
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| If you are using a vacuum | |
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| tube preamplifier, use | |
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| only the | |
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| inputs, as they are | |
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| capacitor coupled. | |
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