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| Probable Cause |
| Corrective Action |
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| 1. | The driver board is damaged. | 1. | Replace the driver board. |
| 2. | Controller is not configured correctly. | 2. | Verify that the humidifier is a double unit. |
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| 3. | Check that the driver board ribbon cable is connected |
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| to the main board. |
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| 1. | The master unit is not configured correctly. | 1. | Verify configuration settings for the units. |
| 2. | Is the RJ12 cable damaged? | 2. | Replace the RJ12 cable. |
| 3. | Is an incorrect RJ12 cable used? | 3. | Replace with correct cable. |
| 4. | J2 ports on driver boards are not connected. | 4. | Check all connections to the processor board. |
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| The electronics of the main PCB have diagnosed the main | Reset humidifier and monitor display. If Error reoccurs | ||
| PCB (itself) as defective. | within one minute of resetting the unit, the problem is with | ||
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| the main PCB. If the Error is not repeated, the primary | |
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| power to the unit is suspect. | |
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| 1. | Current measurement core loose on driver board? | 1. | Connect CT core. |
| 2. | Primary wire not looped through CT core? | 2. | Interrupt main power and rewire CT core. |
| 3. | High water sensor plug is on an electrode pin. | 3. | Install high water plug on shrouded pin. |
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| 1. | Is the drain stuck open? | 1. | Clean drain valve or replace. |
| 2. | Check system backpressure. | 2. | Install fill cup extension kit if required. |
| 3. | Is the water supply closed? | 3. | Open water supply. |
| 4. | Drain leaking? | 4. | Clean drain valve. |
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| 1. | Is the water supply closed? | 1. | Open water supply. |
| 2. | Is the drain leaking? | 2. | Clean drain valve. |
| 3. | Check the system backpressure. | 3. | Clean drain valve or replace. |
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| 4. | Install fill cup extension kit if required. |
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| 1. | Is the drain blocked? | 1. | Clean the drain line. |
| 2. | Is the cylinder filling too fast? | 2. | Replace the fill valve. |
| 3. | Was the wrong fill valve supplied? | 3. | Replace the fill valve. |
| 4. | Is there scale in the cylinder? | 4. | Rinse the cylinder. |
| 5. | Is the water too conductive? | 5. | Change water supply. |
| 6. | Is the wrong cylinder supplied? | 6. | Install the correct type of cylinder. |
| 7. | Is the cylinder spent? | 7. | Replace the cylinder. |
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| 1. | Is the drain blocked? | 1. | Clean the drain line. |
| 2. | Is the drain restricted? | 2. | Clean the drain line. |
| 3. | Is the cylinder filling too fast? | 3. | Replace the fill valve. |
| 4. | Was the wrong fill valve supplied? | 4. | Replace the fill valve. |
| 5. | Is there scale in the cylinder? | 5. | Rinse the cylinder. |
| 6. | Is the water too conductive? | 6. | Change the water supply. |
| 7. | Was the wrong cylinder supplied? | 7. | Install correct cylinder type. |
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| 1. | Is the drain blocked? | 1. | Clean the drain line. |
| 2. | Is the drain restricted? | 2. | Clean the drain line. |
| 3. | Is the cylinder filling too fast? | 3. | Replace the fill valve. |
| 4. | Was the wrong fill valve supplied? | 4. | Replace the fill valve. |
| 5. | Is there scale in the cylinder? | 5. | Rinse the cylinder. |
| 6. | Is the water too conductive? | 6. | Change the water supply. |
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| 1. | Is the drain blocked? | 1. | Clean the drain line. |
| 2. | Is the drain restricted? | 2. | Clean the drain line. |
| 3. | Is the cylinder filling too fast? | 3. | Replace the fill valve. |
| 4. | Was the wrong fill valve supplied? | 4. | Replace the fill valve. |
| 5. | Is there scale in the cylinder? | 5. | Rinse the cylinder. |
| 6. | Is the water too conductive? | 6. | Change the water supply. |
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