MacroAir Technologies AirVolution-D 370 - Page 67

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Rev. Date 040218
Troubleshooting
Code Name
Code
Type
Factory
Setting
Description Symptoms Troubleshooting Tips
1004
Phase Current A
High Fault
Auto-
Reset
Intermittent/
No Operation
Vibration or
Grinding Noises
1. Turn incoming power off for two
minutes, turn back on
2. Conrm power is within fan’s
specications
3. Conrm motor leads are stripped
(gen 2 370)
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 Slowing/
Stopping
Intermittently
1. Conrm that motor temperature is
below 90C
2. Conrm that end caps are open and
there is no blockage in the blades (AVD3)
3. Conrm that the quick link on the
safety cable is not pulling the rubber
boot closed (AVD3)
4. Conrm that the ambient temperature
is below 50C
5. Start the fan earlier in the day before
the ambient temperature rises
1008
Motor
Temperature
High Fault
Auto-
Reset
110C
Fan Stopping
Intermittently
1. Conrm that motor temperature is
below 110C
2. Conrm that end caps are open and
there is no blockage in the blades (AVD3)
3. Conrm that the quick link on the
safety cable is not pulling the rubber
boot closed (AVD3)
4. Conrm that the ambient temperature
is below 50C
5. Start the fan earlier in the day before
the ambient temperature rises
1009
Heatsink
Temperature
High Warning
Warning 75C
The controller
multiplies the
current torque
command by 0.5
when the heatsink
reaches 75C. There
is no hysteresis
on this value. It
goes back to full
speed when the
temperature falls
below the warning
value.
Fan Slowing/
Stopping
Intermittently
1. Conrm that heatsink temperature Is
below 90C
2. Conrm that end caps are open and
there is no blockage in the blades (AVD3)
3. Conrm that the quick link on the
safety cable is not pulling the rubber
boot closed (AVD3)
4. Conrm that the ambient temperature
is below 50C
5. Start the fan earlier in the day before
the ambient temperature rises