MotorVac Cool Smoke EVAP Leak Detection System - Manual (Page 16)

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Trouble Shooting Chart
Symptom Possible Cause Solution
Gurgling sound while making
smoke or fluctuation on the
flow gauge while in leak
detection mode. 1. The tank may be overfilled.
2. Fluid has condensed in the
outlet hose.
Pull the outlet hose off the unit and
make smoke again. If the gurgling
sound is gone fluid has condensed in
the outlet hose. Let the hose hang
down vertically so any fluid drains out
of the line.
The ball on the flow gauge
hangs up or sticks Dirt or moisture from
contaminated supply air has
entered the gauge. Ensure that the shop air being used is
properly filtered and dried. Allow clean
air to run through the machine until the
contamination has cleared.
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