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Troubleshooting
Problem
Excessive noise
Fan doesn't operate
Low airflow
* Excessive fan speed may overload the motor and result in motor failure. Do not exceed the maximum cataloged
rpm of the fan.
Figure 7 – GJI wiring diagram
Our Commitment
As a result of our commitment to continuous improvement, Greenheck reserves the right to change specifications
without notice.
Product warranties can be found online at Greenheck.com, either on the specific product page or in the literature
section of the website at Greenheck.com/Resources/Library/Literature.
Greenheck's GreenJet Jet Fans catalog provides additional information describing the equipment, fan performance, available
accessories, and specification data.
®
Phone: 715.359.6171 • Fax: 715.355.2399 • Parts: 800.355.5354 • E-mail: gfcinfo@greenheck.com • Website: www.greenheck.com
8
484147 • GreenJet – Centrifugal Jet Fan, Rev. 1, March 2020
Cause
Wheel unbalance
Impeller blocked
Electrical supply
Control signal
Inlet / outlet blocked
Terminal Strip
Corrective Action
Clean all dirt off wheel. Check wheel balance, replace if
necessary.
Inspect and remove debris from inlet and outlet.
Check fuses/circuit breakers. Check for switches turned
off or disconnected. Check for correct supply voltage.
Verify control signal and wiring. Check connections to
terminal strip.
Remove debris from inlet and outlet.
Disconnect
Switch
Copyright 2020 © Greenheck Fan Corporation
Motor Connections
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