Indicated on the display: |
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| Observe 8 digit number block in display zone 4. The 3rd digit from the left should be a 0. |
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| Switch on air conditioning system. Select lowest temperature and highest blower speed. |
| The 3rd position from the left must be a 1. |
If the display does not change: |
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Read measured value block 1 -> | 1 2 3 4 |
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