Troubleshooting guide, Technical service – Heath Zenith BL-5511 User Manual
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598-1324-01
SYMPTOM
Light will not 
come on.
Light comes on 
in daylight.
Light comes on 
for no apparent 
reason.
POSSIBLE CAUSE
1. The halogen lamp is positioned too 
close to the light control’s sensor or 
pointed at nearby objects that cause 
heat to trigger the sensor (Reposition 
the lamp away from the sensor or 
nearby objects).
2. Light control’s sensor is pointed toward
a heat source like an air vent, dryer 
vent, or brightly-painted heat-reflective 
surface (Reposition sensor).
3. On-time set too high (Reduce Time
setting).
1. Heat or light from the halogen lamp
may be turning the light control on 
and off (Reposition the lamp away 
from the sensor).
2. Heat being reflected from other
objects may be affecting the light 
control (Re-aim sensor).
3. Light control is in the TEST mode
and warming up (Flashing is normal 
under these conditions).
SYMPTOM
Light stays on 
continuously.
Light flashes 
on and off.
POSSIBLE CAUSE
1. Light switch is turned off.
2. Halogen lamp is loose or burned 
out.
3. Fuse is blown or circuit breaker is
turned off.
4. Daylight turn-off is in effect (Recheck
after dark).
5. Incorrect circuit wiring, if this is a new
installation.
6. Not aimed correctly (Re-aim the
sensor to cover desired area).
1. Light control may be installed in a
relatively dark location.
2. Light control is in TEST (Select 1, 5
or 10 minutes for AUTO time).
1. Light control’s sensor may be detect-
ing small animals, swaying trees, or 
automobile traffic (Re-aim sensor).
2. Sensitivity is set too high (Reduce
sensitivity).
TROUBLESHOOTING GUIDE
TWO YEAR LIMITED WARRANTY
This is a “Limited Warranty” which gives you specific legal rights. You may also have other rights which vary from state 
to state or province to province.
For a period of two years from the date of purchase, any malfunction caused by factory defective parts or workmanship 
will be corrected at no charge to you.
Not Covered - Repair service, adjustment and calibration due to misuse, abuse or negligence, light bulbs, batteries, 
and other expendable items are not covered by this warranty. Unauthorized service or modification of the product or of 
any furnished component will void this warranty in its entirety. This warranty does not include reimbursement for incon-
venience, installation, setup time, loss of use, unauthorized service, or return shipping charges.
This warranty covers only HeathCo LLC assembled products and is not extended to other equipment and components 
that a customer uses in conjunction with our products.
THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY 
WARRANTY, REPRESENTATION OR CONDITION OF MERCHANT ABILITY OR THAT THE PRODUCTS ARE FIT FOR 
ANY PARTICULAR PURPOSE OR USE, AND SPECIFICALLY IN LIEU OF ALL SPECIAL, INDIRECT, INCIDENTAL, 
OR CONSEQUENTIAL DAMAGES.
REPAIR OR REPLACEMENT SHALL BE THE SOLE REMEDY OF THE CUSTOMER AND THERE SHALL BE NO 
LIABILITY ON THE PART OF HEATHCO LLC FOR ANY SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL 
DAMAGES, INCLUDING BUT NOT LIMITED TO ANY LOSS OF BUSINESS OR PROFITS, WHETHER OR NOT 
FORESEEABLE. Some states or provinces do not allow the exclusion or limitation of incidental or consequential dam-
ages, so the above limitation or exclusion may not apply to you. Please keep your dated sales receipt, it is required for 
all warranty requests.
TECHNICAL SERvICE
Please call 1-800-858-8501 (English speaking only) for assistance before returning
product to store.
If you experience a problem, follow this guide. You may also want to visit our Web site at:
www.hzsupport.com.
If the problem persists, call* for assistance at
1-800-858-8501 (English speaking only), 7:30 AM to 4:30 PM CST
(M-F). You may also write* to:
HeathCo LLC, P.O. Box 90004, Bowling Green, KY 42102-9004
ATTN: Technical Service
* If contacting Technical Service, please have the following information available: Model Number, Date of Pur-
chase, and Place of Purchase.
No Service Parts Available for this Product