FloAire Demand Control Ventilation System - Manual (Page 31)

A0023662
May 2014 Rev.5
31
Troubleshooting
The following table lists causes and corrective actions for possible problems with this control. Review this
list prior to consulting manufacturer.
Troubleshooting Chart
Problem Potential Cause Corrective Action
Smoke Rollout of Hood – Fans
don’t start-up when appliances
are ON
Dirty temperature sensor Clean grease and dirt from
sensor
Poor Heat detection Decrease duct Temperature
offset values
Improper hood installation Check for proper hood overhang,
cross drafts or improper hood
design
Fans Spin Wrong Direction 3 phase Motor output wired
backward Swap 2 of the 3 phase wires on
the output of the starter feeding
the motor
Light icon On but No Lights
Come On Light bulbs are blown Replace hood light bulbs
Loose wiring connection Check light terminal block wiring
connections
Fan icon On but Fan doesn’t
comes On
Broken fan belt Replace fan belt
Loose wiring connection Check wiring connections on
starters
VFD Fault List
0 No Fault
1 IGBT Temperature Fault
2 Output Fault
3 Ground Fault
4 Temperature Fault
5 Flying Start Fault
6 High DC BUS
7 Low DC BUS
8 Overload Fault
9 OEM Fault
10 Illegal Setup Fault
11 Dynamic Brake Fault
12 Phase Lost
13 External Fault
14 Control Fault
15 Start Fault
16 Incompatible Parameter Set
17 EPM Hardware Fault
18-27 Internal Fault
28 Remote Keypad Lost
29 Assertion Level Fault
30 - 33 Internal Fault
34 Comm. Module Failure
35 - 44 Network Fault
Refer to VFD manufacturer manual for further details.