©2014 Schaefer Ventilation Equipment. All rights reserved. 9-5-2014
M-CIRCFAN-WD
[email protected] • www.schaeferfan.com • 320.251.8696
4
SYMPTOM
POSSIBLE CAUSES
CORRECTIVE ACTION
Fan does not operate
1. Fan not plugged in
2. Blown fuse or tripped circuit breaker
3. Defective on/off switch
4. Defective motor
5. Fan blade contacting housing
1. Check power cord connection
2. Replace fuse or reset circuit breaker
3. Repair or replace switch
4. Repair or replace motor
5. Realign fan blade in fan housing
Insufficient airflow
1. Guards excessively dirty
2. Blade and motor excessively dirty
1. Clean inlet and outlet guards
2. Clean blade and motor
Excessive noise
1. Fan blade contacting housing
2. Defective motor bearings
3. Loose guards
1. Realign fan blade in fan housing
2. Repair or replace motor
3. Tighten guard fasteners
Excessive vibration
1. Damaged fan blade
2. Motor shaft bent
3. Motor loose
1. Replace fan blade
2. Repair or replace motor
3. Realign if necessary and tighten fasteners
TROUBLESHOOTING
Schaefer Limited Warranty Policy
Schaefer Ventilation Equipment, LLC (SVE) provides the following limited warranty from the date of invoice to the initial purchaser of our
products or to its customer with a dated proof of purchase:
Models: EWD 1-year, SWD 2-year, VWD 3-year coverage (unless otherwise indicated below) applies to all products, components and assemblies
provided by SVE that prove to be defective in material or workmanship. Any such defective product will be repaired or replaced at SVE’s option, with
the defective product or component returned-upon approval, to SVE, F.O.B Sauk Rapids, Minnesota. This warranty does not cover: failure, damage
or malfunction as a result of: Improper installation or installation not in accordance with installation instructions. Operating conditions that vary from
SVE’s operating instructions. Misuse, abuse, negligence, alteration, or accident. Transporting the product. Improper operation or lack of appropriate
or regular maintenance of the product. Loss of time, inconvenience, loss of use of the product or other consequential or incidental damages. Parts that
need replacement due to normal wear and tear. Superficial or cosmetic rust or corrosion. Any product whose name plate has been removed.
For full warranty statement may be printed or downloaded from www.schaeferfan.com
WARRANTY
HIGH-PRESSURE CLEANING OF WASHDOWN DUTY FANS
Schaefer Ventilation strongly recommends that our washdown duty rated fans
are not to be cleaned by high pressure washing while in
operation.
Pressure washing the fan while it’s operating carries the risk of damaging the fan and causing injury to personnel by causing
the fan blade to contact the motor or guard surrounding the blade.
Damage caused by blade contact with the motor or guard while
pressure washing with the fan running is not covered by Schaefer’s warranty.
After pressure washing the fan, and before reconnecting power:
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Make certain no damage has occurred to the fan blade, guards, or motor.
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Check for deforming of the fan blade wings or spider, broken wires or welds on the guards, or damage to the electrical connection box
or power leads on the motor.
If pressure washing the fan while in operation is necessary, Schaefer Ventilation recommends the pressure not exceed 2000 psi, and the
pressure washer nozzle be positioned no closer than 3 feet from the fan blade.
Damage caused by blade contact with the motor or
guard while pressure washing with the fan running is not covered by Schaefer’s warranty.
CAUTION: Do NOT focus the high pressure water stream directly at the motor condensation drain fittings. Incidental spraying
over/across the fittings is permissible.
