© 2018 MacroAir Technologies Toll Free: 866 668 3247 Fax: 909 890 2313 www.macroairfans.com 65
Rev. Date 040218
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 59) 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
Fan Slows
Intermittent/
No Operation
1. Turn incoming power off for two
minutes, turn back on
2. Conrm power is within fan’s
specications
3. Check for spikes with power quality
recorder
4. Conrm that motor wiring is correct
1001
Supply Voltage
Low Warning
Warning 80V DC
The controller
monitors the bus
voltage to verify it’s
above the threshold
Fan Slow
Intermittent/
No Operation
1. Turn incoming power off for two
minutes, turn back on
2. Conrm incoming power is within
fan’s specications
3. Ask if power has gone out recently or
if there have been storms in the area
4. Conrm that motor wiring is correct
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
Intermittent/
No Operation
1. Turn incoming power off for two
minutes, turn back on
2. Conrm power is within fan’s
specications
3. Check for spikes with power quality
recorder
4. Conrm that motor wiring is correct
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
Intermittent/
No Operation
1. Turn incoming power off for two
minutes, turn back on
2. Conrm power is within fan’s
specications
3. Ask if power has gone out recently or
if there have been storms in the area
4. Conrm that motor wiring is correct