© 2018 MacroAir Technologies Toll Free: 866 668 3247 Fax: 909 890 2313 www.macroairfans.com 68
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 63) 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. Confirm power is within fan’s
specifications
3. Check for spikes with power quality
recorder
4. Confirm that motor wiring is correct
(A is white, B is black and C is red)
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. Confirm incoming power is within
fan’s specifications
3. Ask if power has gone out recently or
if there have been storms in the area
4. Confirm that motor wiring is correct
(A is white, B is black and C is red)
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. Confirm power is within fan’s
specifications
3. Check for spikes with power quality
recorder
4. Confirm that motor wiring is correct
(A is white, B is black and C is red)
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. Confirm power is within fan’s
specifications
3. Ask if power has gone out recently or
if there have been storms in the area
4. Confirm that motor wiring is correct
(A is white, B is black and C is red)