
© 2021 Staheli West
142
Faults
Fault 1262: Feed Pump Start Protection: PSI Too Low (Less Than 5 PSI)
Less than 5 psi was detected during pump start.
Causes
Troubleshooting
Fixes
• Plugged supply water filter.
• Clean supply water filter.
• No supply water.
• Fill supply water tanks.
• Faulty feed pump protection
sensor.
• Can be swapped with the steam
psi sensor for troubleshooting.
• Replace feed pump protection
sensor.
• Faulty feed pump.
• Repair/Replace feed pump.
• Faulty feed pump ON/OFF
solenoid.
• Repair/Replace feed pump ON/OFF solenoid.
• Faulty feed water pump flow
control.
• To adjust the flow control to
2.4 gpm, turn the screw counter
clockwise till it stops, then turn
screw clockwise one full rotation.
• Adjust feed water pump flow
control to 2.4 gpm.
Fault 1263: Feed Pump Running Protection: PSI Too Low (Less Than 5 PSI)
Less than 5 psi was detected during pump run.
Causes
Troubleshooting
Fixes
• Plugged supply water filter.
• Clean supply water filter.
• No supply water.
• Fill supply water tanks.
• Faulty feed pump protection
sensor.
• Can be swapped with the steam
psi sensor for troubleshooting.
• Replace feed pump protection
sensor.
• Faulty feed pump.
• Repair/Replace feed pump.
• Faulty feed pump ON/OFF
solenoid.
• Repair/Replace feed pump ON/OFF solenoid.
Fault 1264: Boiler Water Level Sensors 1 & 2 Reading More Than 2 Inches
Different (Replace Bad Sensor)
Indicates the boiler water level sensors have been reading more than 2 inches apart for > 30
seconds.
Causes
Troubleshooting
Fixes
• Faulty boiler water level sensor.
• Perform “Test 1009” to
determine which sensor is faulty.
• Replace boiler water level
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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