Symptom
Meter does not turn on.
Meter reading lower than expected.
Meter reading higher than expected.
Meter not at zero at zero flow.
Meter displays Er.
Handle button not working.
8
SECTION 8
Troubleshooting
Possible Cause and Corrective Action
•
Battery holder snap connector not connected. Connect
battery holder to instrument.
•
Batteries may be discharged. Charge or replace them.
•
Switch failure, wiring failure, or circuit failure. Call
TSI.
•
Wrong vent mode chosen. Choose correct vent mode,
open or closed.
•
Wrong air direction mode chosen. Choose correct
direction, supply or return.
•
Back pressure effects could be significant. Use 2-
point measurement mode.
•
Hood frame not sealing properly around diffuser or
grill. Press hood evenly against diffuser.
•
Odd air flow pattern present. Perform traverse and use
proportional balancing.
•
Hood torn. Replace, or repair tear with duct tape or
other non-porous material.
•
Meter out of calibration. Call TSI.
•
Damage to manifold. Call TSI.
•
Wrong vent mode chosen. Choose correct vent mode,
open or closed.
•
Wrong air direction mode chosen. Choose correct
direction, supply or return.
•
Odd air flow pattern present. Perform traverse and use
proportional balancing.
•
Meter out of calibration. Call TSI.
•
Instrument not at room temperature. Allow instrument
to acclimate before turning on the power.
•
The LoFlo Balometer
room air currents. Place on floor with a piece of
cardboard over the top to determine if it is measuring
real air currents.
•
Meter out of calibration. Call TSI.
•
Self test failed. Call TSI.
•
Call TSI.
®
Capture Hood is reading real