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Installation Instructions
TROUBLESHOOTING CHECKLIST
If the hood seems to be operating at high speed when
the control is not set on high, or if ventilation seems
inadequate, check the following:
❏ Knockouts not removed from hood.
❏ Damper blade not opening.
❏ Reduced airflow because the duct is too small or
the duct length is too long.
❏ The duct is blocked.
❏ Undersized or restrictive wall or roof cap.
If the hood seems to make excessive noise:
❏ Fan may be hitting the filter. Turn off the fan and
remove the filter. Bend the filter down slightly in the
center (into a dome shape) to allow fan clearance.
Reinstall and adjust as needed.
The fan does not work but the lights do:
❏ Switch power off at the service panel and lock the
service disconnecting means to prevent power from
being switched on accidentally. When the service
disconnecting means cannot be locked, securely
fasten a prominent warning device, such as a tag,
to the service panel.
❏ Check the wiring connections. See the CONNECT
WIRING section in these Installation Instructions.
REPLACE WIRING COVER
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21REPLACE FILTER
Make sure fan blade turns freely and replace the
filter. NOTE: On models JV347 and JV348, install
the metal grease filter if ducted or the charcoal
filter if recirculated.
The installation is complete. Turn on power at
service panel, and test for proper operation.
Wiring cover
Metal grease filter or charcoal filter