© 2015 MacroAir Technologies Toll Free: 866 668 3247 Fax: 909 890 2313 www.macroairfans.com 49
Rev. Date 090415
Troubleshooting
It is recommended to wire the fan and the touchpad remote prior to turning on the power to the
fan. If the fan is not operable, but the touchpad remote is lighting up, cycle power to the fan.
If cycling the power did not resolve this issue, go to the fault code screen (reference page 47) and
check to see if there is a code present.
Fault Code Causes and Possible Solutions
Code
Name
Code Type Factory
Setting Description
Symptoms
Troubleshooting Tips
1000
Supply Voltage High
Warning
Warning 425V DC
The controller
monitors the bus
voltage to verify it’s
below the threshold
Expected behavior
when the fan is
slowing to a stop
1001
Supply Voltage Low
Warning
Warning 80V DC
The controller
monitors the bus
voltage to verify it’s
above the threshold
Verify incoming AC
power
1002
Supply Voltage High
Fault
Auto-
Reset
450V DC
The controller
monitors the bus
voltage to verify it’s
below the threshold
and will disable the
fan if it is exceeded
Fan stops suddenly
on deceleration
Verify incoming AC
power
Check wiring
1003
Supply Voltage Low
Fault
Halt
40V DC
The controller
monitors the bus
voltage to verify it’s
above the threshold
and will disable the
fan if it is exceeded
Fan stops suddenly
on acceleration
Verify incoming AC
power
Check wiring
1004
Phase Current A High
Fault
Auto-
Reset
Current not
regulating
Grunting, vibration
sounds
Sudden shutdown
Verify motor
parameters
Perform Power
Calibration
Return to Factory,
damaged drive, motor
short/bad wiring,
drive in danger of
permanent damage
1005
Phase Current B High
Fault
Auto-
Reset
1006
Phase Current C High
Fault
Auto-
Reset
1007
Motor Temperature
High Warning
Warning
100C
The controller
multiplies the current
torque command by
0.5 when the motor
reaches 100C. There
is no hysteresis on
this value. It goes
back to full speed
when the temperature
falls below the
warning value.
Fan runs slower
Operating Ambient
temperature
exceeded
Motor thermistor
out of spec. and /or
damaged
1008
Motor Temperature
High Fault
Auto-
Reset
110C
Fan stops