Therma-Tru Troubleshooting Guide
PROBLEM: Air and/or light leak at top or bottom of jamb.
| Cause | Solution |
| Weatherstrip missing. Weatherstrip painted. Weatherstrip cracked, torn or damaged. | Replace weatherstrip. |
| Bottom corner seal pads missing or removed. | Replace pads. |
| Door loose in frame, with excessive in-and-out movement when latched. | Adjust strike plate for tighter fit. |
| Door not meeting weatherstrip evenly when it closes, hitting the top or bottom first. | Realign, reshim, readjust lockside jamb so door meets weatherstrip evenly from top to bottom. |
PROBLEM: Water leakage around or under sill.
| Cause | Solution |
| Dor not meeting weatherstrip evenly when it closes, hitting the top or bottom first. | Realign, reshim, readjust lockside jamb so door meets weatherstrip evenly from top to bottom. |
| Damaged or painted weatherstrip. | Replace weatherstrip. |
| Broken seal where the sill meets the jamb. | Remove corner seal pad, pull out weatherstrip at bottom, and place a bead of Elastomeric and Polyurethane sealant along entire joint where jamb and sill meet. Replace weatherstrip and reapply corner seal pad. |
| Sill humped or depressed beyond range of door bottom’s sealing capacity. | Anchor sill to draw down straight by driving pilot holes and securing whit galvanized screws. Replace any wrinkled or torn door bottom. |
| Humped sill. | Shim jamb legs up to allow sill to straighten. Reseal with Elastomeric and Polyurethane sealant under sill and anchor sill in place. |
| Damaged sill saddle causing door bottom bulb seal to bunch up and wrinkle when the unit closes. | Replace the saddle and screw down. |
| Damaged door bottom. | Replace door bottom, sealing first. |
| Door sagging out of square in frame. | Make sure LONG hinge screws provided are properly installed in the top hinge through the jamb to the stud. |
| Jamb out of alignments. | If jamb is twisted along length of the members, straighten it by retiming to eliminate the twist and maintain an even head margin |
| Jamb out of square to door. | Usually caused by plumb frame members sitting on unloved floor/sill area. Free lowest jamb leg and shim it up to level the sill and maintain an even head margin. Shim under sill if necessary. |
PROBLEM: Water leakage around lites.
| Cause | Solution |
| Loose lites. | Tighten doorliet screws. Apply sealing tape around inside perimeter of interior frame if required. |
| Door face-to-lite fram seal breakdown. | Seal with Elastomeric and Polyurethane sealant around lite perimeter and/or paint or reprint the perimeter to form a paint seal. |
| Glass-to-lite frame seal breakdown. | Replace doorlite. |
PROBLEM: Water leakage around Fiber-Classic Designline panels.
| Cause | Solution |
| Loose panels. | Tighten screws. Apply sealing tape around inside perimeter of interior frame if required. |
| Door face-to-panel seal breakdown. | Seal with Elastomeric and Polyurethane sealant around panel perimeter and/or paint or repaint the perimeter to form a paint seal. |
PROBLEM: Door will not open or close properly.
| Cause | Solution |
| Door not meeting weatherstrip evenly when it closes, hitting the top or bottom first. | Realign, reshim, readjust lockisde jamb so the door meets the weatherstripping evenly from top to bottom. |
| Adjustable strike plate not properly aligned. | Realign adjustable strike plate. |
| Door sagging out of square in frame (uneven head margin). | Make sure LONG hinge screws provided are properly installed in the top hinge through the jamb to the stud. |
| Frame out of square (uneven sill/door bottom margin) | Usually caused by plumb frame members sitting on unloved floor/sill area. Free lowest jamb leg and shim it up to level the sill and maintain an even head margin. |
PROBLEM: Door does not have enough or too much force.
| Cause | Solution |
| Hinge does not have enough force to close and latch the door. | Remove cross pin. Insert 9/64” Allen wrench in hex adjustment hole and turn to left (clockwise). Insert cross pin when next hole lines up. Remove Allen wrench and test closing action of door. Repeat if necessary. Over-tightening may shorten the life of the hinge. Another hinge may be required. |
| Too much force cause door to slam and make opening difficult. | Replace one of the hinges with a standard hinge without adjustable tension. |
PROBLEM: Panels are not sticking - need to re-apply
| Cause | Solution |
| Door face to panel adhesive tape breakdown. | Reapply by removing panel. Clean panel and door with 70% Isopropyl Alcohol, taking care to remove all old adhesive. Apply new adhesive tape. Apply adequate pressure. |
Internal Blinds Care & Handling
Easy Cleaning: Simply wipe the surface of the glass with a glass cleaner for a polished appearance.
Reattach the Handle: Tilt the handle and place it back onto the track. Slide the handle up or down the length of the track until two audible clicks are hard. The handle is then properly reattached.
Uneven Blinds: If blinds become uneven, slide the handle up and down the entire length of the track to bring the blinds back to a straight and even position.
Replacement parts: A replacement handle and additional caps for the ends of the track can be ordered by visiting www.thermatru.com or by contacting Customer Service at 1-800-THERMA-TRU(843-7628).