Instructions / Assembly
DESCRIPTION PART NUMBER
Sensing Tube Kit 950-9130
LB2 Circuit Board 950-9134
Motor Kit 950-9101
Thermal fuse Kit 950-9132
Thermistor Kit 950-9133
Notification Assembly Kit 950-9131
Secondary 4” Lint Trap LT4
WHAT IS NOT COVERED
Product installed contrary to our installation instructions.
Any freight charges related to the return of the defective part.
Product that has been altered, neglected or misused.
TJERNLUND LIMITED FIVE YEAR MATERIAL AND NO-CLOG WARRANTY
Tjernlund Products, Inc. warrants to the original purchaser of this product that the product will be free from defects due to faulty material or workmanship for a period of (5)
years from the date of original purchase or delivery to the original purchaser, whichever is earlier. Remedies under this warranty are limited to repairing or replacing, at our
option, any product which shall, within the above stated warranty period, be returned to Tjernlund Products, Inc. at the address listed below, postage prepaid. Additionally,
Tjernlund warrants to the original purchaser of this product that the unit will not become inoperable due to lint blockages that restrict the impeller’s motion for a period of (5)
years from the date of original purchase or delivery to the original purchaser, whichever is earlier. THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE
DESCRIPTION ON THE FACE HEREOF, AND TJERNLUND PRODUCTS, INC. EXPRESSLY DISCLAIMS LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAM-
AGES ARISING FROM THE USE OF THIS PRODUCT. THESE WARRANTIES ARE IN LIEU OF ALL OTHER EXPRESS WARRANTIES AND NO AGENT IS AUTHO-
RIZED TO ASSUME FOR US ANY LIABILITY ADDITIONAL TO THOSE SET FORTH IN THESE LIMITED WARRANTIES. IMPLIED WARRANTIES ARE LIMITED TO THE
STATED DURATION OF THIS LIMITED WARRANTY. Some states do not allow limitation on how long an implied warranty lasts, so that limitation may not apply to you. In
addition, some states do not allow the exclusion or limitation of incidental or consequential damages, so that above limitation or exclusion may not apply to you. This war-
ranty gives you specific legal rights and you may also have other rights which may vary from State to State. Send all inquiries regarding warranty work to
Tjernlund Products, Inc. 1601 9th Street, White Bear Lake, MN 55110-6794. Phone (651) 426-2993 • (800) 255-4208 • Fax (651) 426-9547 • Email fanmail@tjfans.com.
Distance Chart From Dryer on page 1. Move LB2 further away from dryer if necessary. Make sure termination hood flapper or backdraft
damper opens. Check for blockage in vent between LB2 and hood. Verify the LB2 motor is coming on when the dryer turns on. If the
motor is not turning on, make sure the dryer and vent is completely cool and perform the LB2 Calibration Procedure on Page 3. If motor
still does not turn on after being recalibrated, remove power from the LB2 and remove the RED leads from thermal fuse and check for
continuity across the thermal fuse, if open replace fuse and inspect dryer vent system and dryer thoroughly for signs of vent blockage
and high heat. If thermal fuse is closed replace RED leads on fuse and apply 115 VAC to LB2 motor leads to verify motor is good. If
motor is good, replace LB2 circuit board. If motor is bad, replace motor.
If there is excessive negative pressure over -1.00” W.C. sensed, that might be an indication that the dryer vent run is too long on inlet
side of LB2 or the dryer lint trap or any secondary lint trap, if installed, needs to be cleaned. Clean Dryer and Secondary Lint Traps and
verify total equivalent vent length and LB2 mounting location conforms with Minimum and Maximum Dryer Duct Length Section on Page
1. Move LB2 closer to dryer if necessary. Perform LB2 Calibration Procedure on Page 3 to clear any faults once investigation is complete.
TEMPERATURE FAULT MODE: (Red LED solid)
If at anytime excessive temperature is sensed by the LB2 thermistor for 15 seconds, the LB2 will shut off and display a constant Red
LED. Stop the dryer immediately and have the vent system inspected for signs of blockage or high heat by a qualified person. Remove
power from the LB2 and remove the RED leads from thermal fuse and check for continuity across the thermal fuse, if open replace fuse
and inspect dryer vent system and dryer thoroughly for signs of vent blockage and high heat. Perform LB2 Calibration Procedure on
Page 3 to clear any faults once investigation is complete.
REPLACEMENT PARTS AND WARRANTY
6







