
© 2021 Staheli West
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Faults
Fault 1253: Feed Pump Protection PSI Sensor Not Connected
Indicates ≥4mA is not present on the signal wire.
Causes
Troubleshooting
Fixes
• Fault still active.
• Sensor won’t give correct
reading until fault is reset.
• Reset the fault.
• Sensor disconnected.
• Connect sensor.
• Faulty sensor.
• Swap with compatible sensor
(See sensor page).
• Replace sensor.
• Faulty wiring.
• Inspect the wiring for ground,
continuity, and proper voltage.
• Repair/Replace wiring.
Fault 1254: Feed Pump Protection PSI Sensor Amperage High
Indicates >22mA is present on the signal wire for 5 seconds.
Causes
Troubleshooting
Fixes
• Faulty sensor.
• Swap with compatible sensor
(See sensor page).
• Replace sensor.
• Faulty wiring.
• Inspect the wiring for ground,
continuity, and proper voltage.
• Repair/Replace wiring.
Fault 1255: Steam Pressure Sensor Not Connected
Indicates ≥4mA is not present on the signal wire.
Causes
Troubleshooting
Fixes
• Fault still active.
• Sensor won’t give correct
reading until fault is reset.
• Reset the fault.
• Sensor disconnected.
• Connect sensor.
• Faulty sensor.
• Swap with compatible sensor
(See sensor page).
• Replace sensor.
• Faulty wiring.
• Inspect the wiring for ground,
continuity, and proper voltage.
• Repair/Replace wiring.
Fault 1256: Steam Pressure Sensor Amperage High
Indicates >22mA is present on the signal wire for 5 seconds.
Causes
Troubleshooting
Fixes
• Faulty sensor.
• Swap with compatible sensor
(See sensor page).
• Replace sensor.
• Faulty wiring.
• Inspect the wiring for ground,
continuity, and proper voltage.
• Repair/Replace wiring.
Summary of Contents for DewPoint 331
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