Troubleshooting Checklist - PennBarry Zephyr Z1 Operation & Maintenance Manualoperation & Maintenance Manual

Zephyr Ceiling/Wall Ventilating Fans Model Z1

Troubleshooting Checklist

Symptom Possible Cause(s)
1. Defective or loose motor bearings
2. Ventilator base not securely anchored
3. Loose or unbalanced wheel/propeller
Excessive noise
4. Misaligned pulleys or shaft
5. Loose or damaged wheel/propeller
6. Wheel running in wrong direction
1. Blown fuse or open circuit breaker
2. Loose or disconnected wiring
Fan inoperative
3. Defective motor
4. Broken belts
1. Open access doors or loose sections of ducts
2. Clogged filters
Insufficient airflow 3. Operation in wrong direction
4. Insufficient make-up air direction
1. Fan installed with slope in the wrong direction
Water leaking
2. Clogged drain spout
into ductwork or
collection of grease
3. Cooling tube or motor dome top removed
under fan
4. Grease container full
1. Belt slippage
2. Overvoltage or under voltage
3. Operation in wrong direction
4. Fan speed too high
5. Incorrect motor (service factor 1.0,
Motor overheating
6. Blocked cooling tube or leaky gasket
7. Insufficient airflow to kitchen hood fan operating
8. Undersized motor
Note: Care should be taken to follow all local electrical, safety and building codes. Provisions of the National Electric Code (NEC), as wells as the Occupational Safety
and Health Act (OSHA) should be followed.
All motors are checked prior to shipment. If motor defects should develop, prompt service can be obtained from the nearest author-
ized service station of the motor manufacturer while under warranty. Exchange, repair or replacement will be provided on a no
charge basis if the motor is defective within the warranty period. The PennBarry representative in your area will provide a name and
address of an authorized service station if requested. WARNING: Motor guarantee is void unless overload protection is provided in
motor wiring circuit.
1401 North Plano Road, Richardson, Texas 75081
Phone: 972-234-3202 Fax: 972-497-0468
low ambient temperature)
on low speed with kitchen in full operation
Operation & Maintenance Manual
Corrective Action
1. Replace motor with same frame size, RPM, HP
2. Reset properly
3. Tighten screws, remove build-up,
balance wheel/propeller
4. correct alignment
4. Replace wheel/propeller
6. Reverse direction
1. Replace fuses or circuit breaker
2. Shut off power and check wiring
for proper connections
3. Repair or replace motor
4. Replace belts
1. Check for leakage
2. Clean filters
3. Correct rotation of wheel/propeller
4. Add make-up fan or louver opening
1. Slope should be fitted in the direction of the
drainage opening or grease collection box and
drain spout
2. Clean drain spout
3. Install new cooling tube
with gasket and dome top
4. Empty grease box
1. Adjust tension or replace bad belts
2. Contact power supply company
3. Reverse direction of motor
4. Slow down fan by opening variable pitch
pulley on motor shaft
5. Replace motor with correct open,
NEMA service factors (1.15 or higher)
with 40 degrees ambient
6. Remove blockage and seal cooling tube in place
7. Check airflow under hood and adjust
kitchen equipment output
8. Check motor ratings with catalog speed
and air capacity chart
PENNBARRY 3