DIVERSITECH D MISTER, Operation & Maintenance Manual

Page: 13 / 20

13
Symptom Possible Cause(s) Corrective Action
Excessive noise and/or
vibration 1. Foreign object
2. Wheel rubbing on housing
3. Loose wheel or sheave on shaft
4. Motor or blower not secure
5. Belt(s) too loose/too tight
6. Worn belt(s)
7. Mismatched belt(s)
8. Loose or worn bearings
9. Bearing or drive alignment
10. Accumulation of material on wheel
11. Motor out of balance
12. Wheel out of balance
13. Sheaves eccentric or out of balance 1. Remove
2. Center the wheel
3. Tighten all set screws
4. Tighten Mounting
5. Adjust Tension
6. Replace
7. Replace
8. Replace
9. Realign
10. Clean
11. Replace
12. Replace or Rebalance
13. Replace
Insufficient air flow 1. Blower speed too low
2. Dampers or registers closed
3. Dirty or clogged filters
4. Leaks in duct work
5. Elbows, cabinet walls, or other obstructions
6. Belt slippage 1. Check for correct drives
2. Open
3. Clean or replace
4. Repair
5. Correct
6. Adjust or replace
Too much air flow 1. Blower speed too high
2. Filter(s) not in place 1. Check for correct drives
2. Install filter(s)
Unit fails to operate 1. Blown fuse or open circuit breaker
2. Broken fan belt
3. Defective motor and/or capacitor
1. Replace or reset
2. Replace
3. Replace
Motor overheats while running
under load 1. Blower speed too high or motor
horsepower too low
2. System static pressure too low
3. Shorted windings in motor
1. See Specifications for correct
drives and HP
2. Check static pressure and
correct system
3. Replace
BLOWER TROUBLESHOOTING CHART
START UP DATA: (write down for future reference)
MODEL NUMBER
______________________________
SERIAL NUMBER
______________________________________
HP
________________________
VOLTAGE
____________________
MFG. DATE
________________________________
VOLTAGE - L1
_________________________
L2
__________________________
L3
______________________________
AMP DRAW - L1
________________________
L2
_________________________
L3
______________________________
OTHER NOTES:
____________________________________________________________________________________________________
____________________________________________________________________________________________________
PRESSURE GAUGE READING (AT START UP) ______________________________________________________________