
© 2021 Staheli West
151
Faults
Fault 1304: Closed Center Fan Speed Valve Short To Ground
Indicates the amperage draw is too high.
Causes
Troubleshooting
Fixes
• Faulty wiring.
• Inspect the wiring for ground,
continuity, and proper voltage.
• Repair/Replace wiring.
• Faulty valve.
• Replace valve.
Fault 1305: Water Purge System Warning
Indicates boiler is in running state and water has been detected in the manifold for >10 minutes.
Causes
Troubleshooting
Fixes
• Poor water quality.
• Test the boiler water.
• Drain boiler and refill with
treated water.
• Blockage in the water purge
system.
• Inspect entire water purge path
(see water purge system page).
• Remove blockage from water
purge system.
• Blown fuse #18 (main fuse
block).
• Check fuse for blown
symptoms.
• Replace fuse #18 (5 amp).
• Faulty water purge sensor.
• Replace water purge sensor.
• Faulty wiring.
• Inspect the wiring for ground,
continuity, and proper voltage.
• Repair/Replace wiring.
Fault 1306: Top Rear Actuator Disconnected
Indicates the CANBUS heartbeat communication is offline.
Causes
Troubleshooting
Fixes
• Top rear actuator disconnected.
• Connect top rear actuator.
• Wrong CAN address on the top
rear actuator.
• Re-address the top rear actuator (See Test 1008).
• Faulty wiring.
• Inspect the wiring for ground,
continuity, and proper voltage.
• Repair/Replace wiring.
Fault 1307: Top Rear Actuator Not Calibrated
Indicates the actuator has not been programmed by the factory.
Causes
Troubleshooting
Fixes
• Faulty actuator.
• Replace actuator.
Fault 1308: Top Rear 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.
Содержание DewPoint 331
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