8
Troubleshooting
HG-8 COLD CLIMATE FLUSHING SYSTEM
TROUBLESHOOTING THE PROGRAMMER
TROUBLESHOOTING THE UNIT
• Check to make sure the
flow control knob is open
on the valve OR Check the
pipes for obstructions OR
Check the valve.
The Hydro-Guard Unit will not
shut off:
Possible Causes
• The solenoid is stuck in the
open position or debris is
interferring with the plunger.
• Batteries weak or dead.
• Connection loss from
battery box to solenoid.
• The solenoid is loose or
there is debris in the adapter.
• There is a hole in or debris
around the diaphragm.
Try this Correction
• Run a manual flush for
1 minute.
• Change batteries.
If your Hydro-Guard Unit does
not activate:
Possible Causes
• Water pressure off or low.
• Batteries weak or dead.
• Connection loss from
controller to solenoid.
• Solenoid not
working properly.
• Obstruction in flow of water.
Try this Correction
• Check if curb stop is open.
• Change batteries.
• Check connections for
corrosion, breaks, or lack
of connection.
• Run a manual flush and
confirm the solenoid
plunger is kicking out and
pulling back in by listening
for a click.
• Check connections for
corrosion, breaks, or lack
of connection.
• Check the adapters and
solenoid for debris – Run the
electrical systems check.
• Refer to valve
troubleshooting for possible
corrective measures.
PROBLEM CAUSE
SOLUTION
Controller does not flush
as desired
Water at main water supply is
shut off
Battery dead
Replace battery
Battery dead
Replace battery
Controller improperly programmed
Check program and clock settings
Controller set to OFF
Set controller to desired program
Blank display
Water does not turn off
Overlapping programming
Review all programming and edit
any program that is in conflict with
desired off schedule
Clear all programming in memory
and reset
Programmer not communicating
Check Programming
Run Manual On / Off with solenoid
removed from valve (hold finger
or object over solenoid plunger to
prevent plunger from dislodging
from solenoid body)
Check wiring for damage and
connectors to ensure proper
connection (red to red & black
to black)
Check main supply valve
