Boss Snowplow STB08980, Installation Instructions Manual, Page: 24 / 36

Problem Possible Cause Corrective Action
1. Check the electrical connections. 1. Clean and repair any corroded or
damaged terminals.
2. Check the headlight adapter wires. 2. Verify that the proper headlight
adapters are being used and are
correctly installed.
The plow lights are dim, do not come on,
or flicker.
3. Check the relays for corrosion and
function.
3. The relays should click when
energized.
1. Check the headlight adapters. 1. Verify that the proper headlight
adapters are being used and are
correctly installed.
The turn signals flash at a rapid rate.
2. Check the flasher. 2. Replace the vehicle flasher with the
heavy-duty 6 A flasher.
There is no high-beam indicator light, or it
does not function properly. 1. Check the headlight adapters. 1. Verify that the proper headlight
adapters are being used and are
correctly installed.
1. Check the trip-spring adjustment. 1. Tighten the springs and replace them if
they are damaged.
The blade trips too easily.
2. Check the push-beam height. 2. Adjust the push beam to the proper
height.
The plow does not clean up snow from
low areas. 1. The controller is not in the F
LOAT
position.
1. Activate the F
LOAT
feature on the
controller.
1. Power the light tower down. Do not
pull the tower down.
1. Disconnect the plow and adjust the
hydraulic-fluid level.
2. The terrain is too steep. 2. Avoid steeply sloped areas.
3. The pump reservoir is overfilled. 3. The hydraulic fluid level should be
within 2 cm (3/4 inch) of the top of the
reservoir.
Fluid is running out of the fill cap of the
hydraulic pump.
4. The plow is hitting snowbanks too
hard.
4. Do not plow recklessly.
The pump chatters when raising or angling
the plow. 1. Check that the hydraulic-fluid level is
not low.
1. The hydraulic-fluid level should be
within 2 cm (3/4 inch) of the top of the
reservoir when lowered.
1. Make sure that the vehicle is on and
the controller is in the F
LOAT
position.
1. Turn the vehicle on and put the
controller in the F
LOAT
position.
2. Make sure that the controller is staying
in the F
LOAT
position.
2. If the controller comes out of the F
LOAT
position when using the SmartHitch2
controller, replace the controller.
The SmartHitch2 does not attach to the
plow.
3. Check valve block and the SmartHitch2
switch for proper connections.
3. Refer to the manifold wiring diagram
included with your Owner’s Manual .
The plow lights and truck lights are on at
the same time. 1. Check the vehicle harness wiring
connected to the truck headlights.
1. Refer to the wiring diagram included
with your Owner’s Manual and ensure
that the vehicle wire harness is not
plugged into the vehicle headlight.
All of the plow and vehicle lights are on at
the same time. 1. Check the headlight adapters. 1. If the headlight adapters are installed
incorrectly, unplug them and connect
them as shown in Installing the Wire
Harness.
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