
© 2021 Staheli West
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Faults
Fault 1286: Top Steam Actuator Stuck / Jammed
Indicates the internal encoder does not match the commanded actuator position.
Causes
Troubleshooting
Fixes
• Obstruction in valve.
• Remove obstruction.
• Faulty actuator.
• Replace actuator.
Fault 1287: Bottom Steam Actuator Is Disconnected
Indicates the CANBUS heartbeat communication is offline.
Causes
Troubleshooting
Fixes
• Bottom steam actuator
disconnected.
• Connect bottom steam actuator.
• Blown fuse #13 (main fuse
block).
• Check fuse for blown
symptoms.
• Replace fuse #13 (5 amp).
• Wrong CAN address on the
bottom steam actuator.
• Change the address to 0, then re-address the actuator
(See Test 1008).
• Faulty wiring.
• Inspect the wiring for ground,
continuity, and proper voltage.
• Repair/Replace wiring.
Fault 1288: Bottom Steam Actuator Is Not Calibrated
Indicates the actuator has not been programmed by the factory.
Causes
Troubleshooting
Fixes
• Faulty actuator.
• Replace actuator.
Fault 1289: Bottom Steam Actuator Stuck / Jammed
Indicates the internal encoder does not match the commanded actuator position.
Causes
Troubleshooting
Fixes
• Obstruction in valve.
• Remove obstruction.
• Faulty actuator.
• Replace actuator.
Fault 1290: Feed Water Actuator Is Disconnected
Indicates the CANBUS heartbeat communication is offline.
Causes
Troubleshooting
Fixes
• Feed water actuator
disconnected.
• Connect feed water actuator.
• Blown fuse #11 (main fuse
block).
• Check fuse for blown
symptoms.
• Replace fuse #11 (5 amp).
• Wrong CAN address on the feed
water actuator.
• Change the address to 0, then re-address the actuator
(See Test 1008).
• Faulty wiring.
• Inspect the wiring for ground,
continuity, and proper voltage.
• Repair/Replace wiring.
Summary of Contents for DewPoint 331
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