Airflow Meter
Disconnect airflow connector. Using an ohmmeter, check resistance at meter terminals. See Fig 1 . See AIRFLOW METER RESISTANCE table.
AIRFLOW METER RESISTANCE
| Terminals | Ohms | |
|---|---|---|
| 5-3 | 100-300 | |
| 5-4 | 200-400 | |
| 5-1 | ||
| @ -4°F (-20°C) | 10,000-20,000 | |
| @ 32°F (0°C) | 4000-7000 | |
| @ 68°F (20°C) | 2000-3000 | |
| @ 104°F (40°C) | 900-1300 | |
| 5-2 | ||
| Measuring Plate Fully Closed | 20-400 | |
| Measuring Plate Fully Opened | 20-1000 | |