Troubleshooting Guide
INJECTION CYLINDER NOT INJECTING OR INJECTING AT SLOW RATE
Too low of pressure 1. Check the hose connecting the backpack or pump to the HTI to
make sure that it is not kinked. 2. Make sure that the ends of the
hoses located within the manifold are not loose, tighten them if need
be. 3. Check to make sure that the filter is not obstructed. 4. Turn up
pressure (do not exceed 175 psi).
Compressed soil/rocks at
injection site
Move probe to new application site
Clogged product outflow ports Pick out the 4 hole injection ports with a paper clip. Ensure prod-
uct is properly diluted as thicker products can impede movement
throughout HTI.
INJECTION CYLINDER NOT FILLING
Kink, twist or obstruction in
hose
Remove obstruction
Clogged inline filter Check for debris, residues or particulates. If present, clean out filter
using methods outlined within the manual.
Fill button wont activate Remove, lubricate and clean fill button components
Injection Cylinder stuck O-Rings are dry and need to be lubricated or have rolled back on
themselves causing a seize. If they have rolled back, remove the
o-ring and replace. Operating the HTI at high pressures will some-
times cause the O-ring to roll back on itself. If O-ring continuously
rolls back on it itself, adjust the pressure to lessen the likelihood of
this occurring.
CYLINDER WON’T STOP FILLING
Fill button depressed and
won’t come back up
Pressure is too high. Keep pressure below 150 psi.
Fill button on too tight Untighten the button to alleviate the dowel pin.
Spring no longer maintaining
pressure against nylon ball
Replace the spring. For a temporary fix, pull the spring apart to get it
back to original form. It is necessary to replace the spring in the long
term as the spring will have lost its integrity after repeat alterations.
Nylon ball is too worn Replace nylon ball of all of the fill button components
Port where fill button compo-
nents insert into manifold are
worn and will not hold a seal
Replace the manifold.
CYLINDER IS LEAKING
Freeze/thaw damage Replace cylinder.
O-Rings worn out Replace O-rings.
ELECTRONIC COUNTER STOPS WORKING
Water Damage Replace Counter
Dead Lithium Battery Replace Counter
Lost Connection Remove 4 screws that hold counter. Pull out of frame and check
connection
POSSIBLE CAUSE SUGGESTED SOLUTION
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