
© 2021 Staheli West
120
Faults
Fault 1020: Low Water 1 Detected in Start
Fault 1021: Low Water 1 Detected in Pre-Purge
Fault 1022: Low Water 1 Detected in Purge
Fault 1023: Low Water 1 Detected in Pre-Ignition
Fault 1024: Low Water 1 Detected in Spark Ignition
Fault 1025: Low Water 1 Detected in Main Ignition
Fault 1026: Low Water 1 Detected in Run
Fault 1027: Low Water 1 Detected in Post-Purge
Indicates the low water 1 sensor is detecting low boiler water level when the boiler water level
should not be low.
Causes
Troubleshooting
Fixes
• Poor water quality.
• See fault 2003
• Drain boiler and refill with fresh
water.
• See fault 2003 for more causes
and fixes.
• Faulty feed water actuator.
• Test in Manual Mode.
• Replace feed water actuator.
• Faulty low water 1 sensor.
• See Test 1009.
• Repair/Replace failed low water
1 sensor.
• Blown fuse #24 (main fuse
block).
• Check fuse for blown
symptoms.
• Replace fuse #24 (2 amp).
• Faulty wiring.
• Inspect the wiring for ground,
continuity, and proper voltage.
• Repair/Replace wiring.
Summary of Contents for DewPoint 331
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