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11 TROUBLE SHOOTING GUIDE
Symptoms
Error Code
Probable Cause
Recommended Action
Pump(s) not
starting
No power to SPU
Ensure the green light is on the front of the SPU, check fuse.
Low water
Low water in tank
Depress float valve to varify water is filling tank, check water level
and supply.
System pressure =
set pressure
SPU functioning correctly. Check the set system pressure.
Pump run fail
Pump seized
Force the pumps to run using the pump test function. Clear error.
Pump run fail
System pressure set
too high
System set pressure is set higher than the pump performance
capability, reduce set pressure. Ensure you have purchased the
correct SPU for the system pressure required.
Sensor error
Pressure sensor
fault
Remove pressure from the SPU outlet and verify the displayed
pressure is 0 bar. Error will be displayed if the sensor signal is outside
parameters. (Replace sensor - call Stuart Turner).
Pump(s) will not
stop
Sensor error
System pressure set
too high
System set pressure is set higher than the pump performance
capability, reduce set pressure. Ensure you have purchased the
correct SPU for the system pressure required.
Pressure sensor
fault
Remove pressure from the SPU outlet and verify the displayed
pressure is 0 bar. Error will be displayed if the sensor signal is outside
parameters. (Replace sensor - call Stuart Turner).
Low pressure
alarm triggered
Low pressure
Leak in system.
Check system for leaks. Check pump activity in logs. Check for
leaking pressure relief valve.
Low pressure alarm
set too high.
Reduce Low press alarm pressure. Check system pressure range
during normal operation.
Sensor error
Pressure sensor
fault
Remove pressure from the SPU outlet and verify the displayed
pressure is 0 bar. Error will be displayed if the sensor signal is outside
parameters. (Replace sensor - call Stuart Turner).
High pressure
alarm triggered
High pressure System pressure
too high
Check system operation. Increase High presure alarm set pressure.
Sensor error
Pressure sensor
fault
Remove pressure from the SPU outlet and verify the displayed
pressure is 0 bar. Error will be displayed if the sensor signal is outside
parameters. (Replace sensor - call Stuart Turner).
Pump run time
alarm activated.
Pump running for
longer than set
time
Pump run
time alarm
Pump filling system
Activate system fill option to suppress alarm for 24 hours.
Leak in system
Check system for leakage. Monitor using system fill volume log, reset
if needed.
Increase pump run time limit.
Activity high
alarm activated.
Pump starting
more than set
value
Activity High
alarm
Pump filling system
Activate system fill option to suppress alarm for 24 hours.
Leak in system
Check system for leakage. Monitor using system fill volume log, reset
if needed.
Activity High alarm
number too low
Increase the Activity High alarm value.
Sensor failure
error
Sensor error
Pressure sensor
outside specifcation
Remove pressure from the SPU outlet and varify the displayed
pressure is 0 bar. Error will be displayed if the sensor signal is outside
parameters. (Replace sensor - call Stuart Turner).
Low water error
Low water
Loss of water supply
to SPU
Depress float valve to verify water is filling tank and check water level
and supply.
Water level set
too low
Adjust water level by turning float, ensure upper level probe is in
contact with water when the fill valve is turned off.
Check water level prior to leaving unattended.
Water
overflowing
warning pipe or
weir
Water level too high Check function of the fill valve, replace or adjust if needed.
Pump NRV leaking
Isolate SPU from system and mains water and replace non-return
valve and holder.
Summary of Contents for 46721
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