1.2TROUBLESHOOTING 1.2.1 System Faults
| Warning |
| Error | Cause | Remedy | |
LED | Display | LED |
| Display |
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MH Card | missing (Test run | MH Card Missing |
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possible) |
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Red |
| Red lights |
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| No MH Card | Install MH |
flashes |
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| installed on the | Card or start |
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| control board. | test run. |
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| MH Card is | Empty |
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Red lights |
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| No data stored on | Install new | ||
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| the MH Card | MH Card. |
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| MH Card is | defective |
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Red lights |
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| Invalid data stored | Install new | ||
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| on the MH Card | MH Card. |
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| MH Card is | incompatible |
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Red lights |
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| The MH Card is | Install new | ||
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| not compatible | MH Card. |
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| with the hardware | Modify basic |
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| or the basic | settings. |
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| settings on the |
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| control board. |
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| Unit Module | B missing |
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Red lights |
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| No response from | Plug in flat | ||
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| module B. Flat | ribbon cable, |
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| ribbon cable | plug in 120V |
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| interrupted or | supply |
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| disconnected | cable. |
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| 120V supply cable |
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| disconnected. |
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| Wrong parameter settings |
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Red lights |
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| Data of CPU and | Install | ||
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| MH Card do not | correct MH |
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| match. | Card. |
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| Contact your |
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| Nortec |
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| supplier. |
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| Hardware Fault (flash) |
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| CPU on control | Replace | ||
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| board defective. | control |
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| board. |
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| Hardware Fault (clock) |
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| CPU on control | Replace | ||
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| board defective. | control |
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| board. |
