© 2022 Staheli West
184
Faults
Fault 309: Loss of Steam Pressure During Operation
Normal steam pressure during operation is 7-13 psi.
Causes
Troubleshooting
Fixes
• Master steam rate above 90%.
• With all valves set to 100% and the master steam rate above 90%,
the boiler will struggle to keep up with steam demand. The result
will be loss of steam pressure. This is normal. When large amounts
of steam are needed it is suggested to set the valves to the “Hot
and Dry” settings shown on the Common Valve Settings page (Front
manifolds set near 70%).
• Burner fire shutting off because
steam purge valve is not opening
to maintain target steam pressure
(Fault 308).
• Test in “Manual Mode” to see
if steam purge Actuator moves
when turned “ON” Menu >
Operations >
Manual Mode.
• Replace steam purge actuator.
• See Fault 308 for more fixes.
• Faulty burner controller (Fault
239).
• Replace burner controller if problem persists.
• Low water 1 or 2 tripped (Fault
300).
• See Fault 300 for more fixes.
• Steam leaks.
• Check hoses from DewPoint
machine for leaks.
• Check baler hardware for steam
leaks.
• Repair steam leaks.
• Low fuel pump pressure.
• See Fuel Pump page.
• If fuel pump psi is set correctly,
check for fuel leaks in the burner.
• Fuel pump psi ~150.
•
Nozzle 1 psi on low fire ~150.
•
Nozzle 1&2 on high fire ~130.
• Adjust fuel pump psi to ~150.
• Low nozzle pressure.
• Adjust fuel pump psi to ~150.
• Repair fuel leaks.
• See Test 20.
• Plugged/Dirty fuel nozzles.
• Remove and clean fuel nozzles.
• Wrong nozzles.
• Check for correct nozzle sizes:
Low fire - 10.5
High fire - 19.5
• Replace with correct nozzles.
• Dirty flue tubes.
• High flue temps indicate dirty
flue tubes.
• Clean flue tubes (Test 15).
• Scale has built up in the boiler.
• Remove a hand-hole cover and
inspect boiler tubes for scale.
• Use REDEW Boiler De-scaler
(Part # 11194).
• Use Boiler Guard
(preventative).
• Circulation pump not running
(Fault 311).
• See Fault 311 for more fixes.
• Poor water quality or untreated
water.
• Poor water quality can cause
foam to carry over into the steam
hoses causing wet bales and loss
of steam pressure.
• Drain boiler and supply tanks
and refill with treated water.
• Faulty boiler water circulation
system.
• See Fault 209.
