
© 2021 Staheli West
122
Faults
Fault 1040: High Pressure Detected in Start
Fault 1041: High Pressure Detected in Pre-Purge
Fault 1042: High Pressure Detected in Purge
Fault 1043: High Pressure Detected in Pre-Ignition
Fault 1044: High Pressure Detected in Spark Ignition
Fault 1045: High Pressure Detected in Main Ignition
Fault 1046: High Pressure Detected in Run
Fault 1047: High Pressure Detected in Post-Purge
The High Pressure Limit Switch should trip at 15 PSI.
Causes
Troubleshooting
Fixes
• High pressure limit switch faulty
/ out of calibration.
• Perform “Test 1005”.
• Adjust the calibration nut to 15
PSI.
• Replace high pressure limit
switch.
• Operating pressure control
switch faulty / out of calibration.
• If the HPLS tripped at 15 psi
or higher, this means the OPLS
failed to trip at 14.5.
• Perform “Test 1006”.
• Adjust the calibration nut to
14.5 PSI.
• Replace operating pressure
control switch.
• Blown fuse #22 (main fuse
block).
• Check fuse for blown
symptoms.
• Replace fuse #22 (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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