Tjernlund HSJ, 1, 2 Series with UC1 Universal Control (Version X.06) 8504106 Rev C 07/05 - Manual (Page 22)

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SYMPTOM 3: VENTER OPERATES, BUT BURNER DOES NOT
For any newly established call for heat the UC1 will run for 60 seconds to try to close the fan prover circuit (P1 to P2). If circuit can not be made within
60 seconds, LED #4 (Red) will flash 3 times, indicating a prover check circuit fault on UC1 start up. NOTE: The UC1 safety circuit and LED #4 (Red)
will be reset if the call for heat interlock signal or 115 VAC power is removed. If the fan prover makes on start up, but breaks for more than 10 sec-
onds during the burner cycle, LED #4 will flash continuously indicating a prover circuit fault. The Venter will continue to run for 10 minutes to try to
make the prover circuit as long as a call for heat exists. If Prover does not make within 10 minutes, the UC1 will shut down and LED #4 (Red) will
flash 4 times indicating a prover circuit fault. Remove the call for heat and then reestablish to reset the UC1 prover safety circuit (P1 to P2) & LED #4 (Red).
Verify that LED #2 (Blue) is lit.
Yes, LED #2 (Blue) is lit: Verify that "call jumper" is connected from J1 to J2 on UC1 circuit board if using typical wiring where supply voltage from ter-
minal 1 is routed to terminal 3 through “call jumper” then to 4 when appliance interlock relay makes. With call for heat established, verify that wiring is
correct by measuring voltage between terminals 1 & 2 and 2 & 4 of UC1 terminal strip. Voltage should be the same in both cases, if not rewire per
appropriate diagram or confirm burner control(s) are functioning properly. NOTE: If a different voltage source is provided to terminal 3 which is
switched to terminal 4 or when using the A-B dry contacts, voltage measurements may not apply. For millivolt installations make sure system Limits
are reset and relight pilot.
No, LED #2 (Blue) is not lit: Remove power from UC1 and push dip switch #9 up or “on” to deactivate Pre-Cycle Fan Prover status check. Remove
P1 and P2 prover leads off of Fan Prover switch and jumper together. Reestablish power and call for heat. After Venter pre-purge, if set (up to 35 seconds),
LED #2 (Blue) should light.
No, LED #2 (Blue) does not light: Replace UC1 circuit board, part number 950-8804.
Yes, LED #2 (Blue) lights up: The fan proving switch may not be closing, wiring connections are incorrect/broken or burner control(s) are not function-
ing properly. With Venter running, verify that Venter performance is sufficient to close Fan Prover contacts by checking for continuity across switch.
IMPORTANT: After continuity check push dip switch #9 back down to “activate” Pre-Cycle Fan Prover status check. Replace Fan Prover leads from
P1 and P2 back on Fan Proving switch.
No, continuity is not present: Confirm that burner is not firing at capacities or temperatures exceeding Venter limits. Check for excessive vent pipe
runs, elbows directly on venter discharge, high winds, plugged / kinked Fan Prover sensing tube or a faulty Fan Prover switch. If everything checks
out okay, replace fan prover.
Yes, continuity present: Recheck wiring and burner control(s).
HOW TO OBTAIN SERVICE ASSISTANCE
If you have any questions about your Venter or if it requires adjustment or repair, we suggest you contact your installer, contractor or service agency.
If you require technical information contact Tjernlund Products, Inc. at 1-800-255-4208 with the following information.
Model of the Venter the UC1 is interlocked with as shown on the label attached to Venter.
Name and address of installer and any service agency who performed work on Venter.
Date of original installation and dates any service work was performed.
Details of the problem as you can best describe them.
LIMITED PARTS WARRANTY AND CLAIM PROCEDURE
Tjernlund Products, Inc. warrants the components of the Venter and UC1 for 1 year from date of installation. This warranty covers defects in material
and workmanship. This warranty does not cover normal maintenance, transportation or installation charges for replacement parts or any other service
calls or repairs. This warranty DOES NOT cover the complete Venter if it is operative, except for the defective part.
1.) Follow troubleshooting guide to determine defective component. If unable to determine faulty component, contact your Tjernlund distributor or
Tjernlund Products Technical Customer Service Department at 1-800-255-4208 for troubleshooting assistance.
2.) After the faulty component is determined, return it to your Tjernlund distributor for replacement. Please include Venter date code component was
taken from. The date code is located on the Electrical Box coverplate. If the date code is older than 1 year, you will need to provide a copy of the
original installation receipt to your distributor. Credit or replacement will only be issued to a Tjernlund distributor after the defective part has been
returned prepaid to Tjernlund and verified defective.
WHAT IS NOT COVERED
Product installed contrary to our installation instructions, altered, neglected, misused or wired incorrectly.
Product that has been damaged by a malfunctioning or maladjusted burner.
Any freight charges related to the return of the defective part.
Any labor charges related to evaluating and replacing the defective part
MODEL HSJ
DESCRIPTION
PART NUMBER
MOTOR KIT 950-1020
WHEEL KIT 950-1010
FAN PROVER KIT 950-1030
UC1 CIRCUIT BOARD 950-8804
MODEL HS2
DESCRIPTION
PART NUMBER
MOTOR KIT W/WHEEL 950-1021
WHEEL KIT 3/8” BORE 950-1012
FAN PROVER KIT
950-1031
UC1 CIRCUIT BOARD 950-8804
MODEL HS1
DESCRIPTION
PART NUMBER
MOTOR KIT 950-1020
WHEEL KIT 950-1011
FAN PROVER KIT 950-1030
UC1 CIRCUIT BOARD 950-8804
TJERNLUND ONE YEAR LIMITED 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 (1) year 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. THERE ARE NO WARRANTIES WHICH
EXTEND BEYOND THE DESCRIPTION ON THE FACE HEREOF, AND TJERNLUND PRODUCTS, INC. EXPRESSLY DISCLAIMS LIABILITY FOR INCIDENTAL OR CONSE-
QUENTIAL DAMAGES ARISING FROM THE USE OF THIS PRODUCT. THIS WARRANTY IS IN LIEU OF ALL OTHER EXPRESS WARRANTIES AND NO AGENT IS AUTHORIZED
TO ASSUME FOR US ANY LIABILITY ADDITIONAL TO THOSE SET FORTH IN THIS LIMITED WARRANTY. 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 warranty 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: [email protected]