| Symptom | Check | Action |
| 115 VAC heater jacket is not heating | Check the resistance between the black and white wires (tied together) and the blue wire. A 200 watt heater @ 115 VAC will draw about 2 amps so the resistance is around 61 ohms | If the measure is open for heater resistance the fusible link has blown and the jacket should be replaced. |
| 230 VAC heater jacket is not heating | Check the resistance between the black and white power wires using an ohmmeter. A 200 watt heater @ 230 VAC will draw about 1 amp so the resistance is around 245 ohms. | If the measure is open for heater resistance, the fusible link has blown and the jacket should be replaced. |
| Filter plug cannot be removed from filter housing | Check “O” rings for damage High particulate loading | Replace “O” rings Clean the “O” ring sealing surfaces with a clean towel prior to reassembly. |
Download Baldwin-Series Model 33C Heated Filter Probe User’s Manual