Carmanah Technologies Corp. | 250 Bay St, Victoria, BC V9A 3K5, Canada | 1.250.380.0052 | customerservice@carmanah.com | carmanahtraffic.com 67E / F SERIES USER MANUAL8.0 MAINTENANCE AND PRODUCT CARE8.0 Maintenance and Product CareThe E and F Series solar engines are designed to operate reliably for years with virtually no need formaintenance. Carmanah recommends routine inspections of the solar panels to ensure that they areunobstructed by anything that may prevent effective solar charging, including:• Dirt and dust• Snow• Leaves• Debris• Shade that may have developed after installation due to adjacent plant growth.The frequency of the inspections depends on location and local weather patterns. A yearly visual inspection of thesolar engine is typically sufficient. The system is designed to be maintenance free, but maximum systemperformance is achieved when the LED lenses and solar panels are clean. When inspecting the interior, ensurethat the vent screens are undamaged and that the vents are clear and allow airflow.8.1 Fuse ReplacementIt is important to ensure both fuses are working. With two fuses in the system, it is possible for one fuse to beblown while the system continues to operate normally using the remaining battery. In this event, the availablebattery capacity, and therefore system autonomy, will be half of what it should be, and the single working batterywill be working harder and cycling deeper than it should be, which will shorten its service life. To replace the fuse:1. Remove any metal jewelry and keep any tools or other conductive objects away from the exposed fusesor battery terminals.2. Check all wiring for any faults that may have caused the fuse to blow.3. Pull the yellow rubber fuse holders apart and check the fuses.4. Replace a blown fuse with an identical 3AG (1/4" x 1-1/4") fast-acting 7A fuse, Littelfuse part number0312007.MXP (or equivalent).Fuse holders