Around St. George and the towns next to it, a garage door deals with long hot summers, strong sun, wind, and fine red dust that finds every gap. That combination wears doors out in a specific way. Here are the eight problems we see most from that kind of wear, what each one looks like, and the fix. For the bigger picture on why doors wear this way here, see our desert heat and dust guide.
1. The opener quits on hot afternoons
What you notice: The door works fine in the morning, but by late afternoon the opener clicks, hums, or does nothing. Sometimes it works again after the garage cools off overnight.
Why it happens: The opener hangs near the ceiling, where heat builds up in a closed garage. Summer after summer, that trapped heat wears on the circuit board, the capacitor, and the plastic drive gear.
The fix: Check that the springs are healthy first, since a heavy door makes the opener run hotter. Then a technician can test the board, capacitor, and gear. If the opener is older and fails every summer, replacing the opener usually makes more sense than another round of parts. See garage door opener repair.
2. The door reverses before it closes
What you notice: The door starts down, then goes back up. The opener light may blink. Holding the wall button down is the only way to get it shut.
Why it happens: The two safety sensors near the floor need a clear line of sight. Red dust, a spider web, or a sensor bumped out of line breaks the beam. So can late afternoon sun hitting a sensor head-on.
The fix: Clean both lenses, then look at the little indicator lights. A blinking or dark one usually means that sensor got knocked, so nudge it back until it points straight at its partner. If that does not work, the wiring or the sensor may need repair. Never bypass the sensors. More on our keypads, remotes and sensors page.
3. Rollers grind and the door gets loud
What you notice: Grinding, rumbling, or squealing as the door moves, getting worse over time.
Why it happens: Dust mixes with old grease inside the roller bearings and turns into grit. Bare steel rollers and plastic wheels without real bearings wear out fastest.
The fix: Swap the full set for nylon rollers with sealed bearings, tighten loose hinges and brackets, and lubricate the hinges and bearings. Do not grease the track. Bottom rollers sit in brackets under cable tension, so leave those to a technician. See noisy garage door repair.
Call or text 435-773-8856
Tell us what the door is doing. Free estimate, no prices online.
4. The bottom seal cracks and daylight shows
What you notice: A line of light under the closed door, dust or sand drifting in after wind, bugs or scorpions getting in.
Why it happens: That strip of rubber lives on hot concrete and in direct sun, with sand ground into it every cycle. Eventually it stiffens up and tears.
The fix: Replace the bottom seal, and the retainer channel if it is rusted or bent. Replace cracked side and top seals too, and add a threshold if the floor is uneven. Then set the opener close limit so the door seals evenly. See weather seals and insulated doors.
5. The keypad fades, cracks, or stops responding
What you notice: Worn or faded numbers, a cracked cover, buttons that do not respond, or a keypad that lights up but does not open the door.
Why it happens: Keypads on south and west walls sit in direct sun all summer. Plastic gets brittle and buttons wear out. Batteries also run down faster in the heat.
The fix: Start with a fresh battery and try reprogramming the code. If the keypad is sun damaged, replace it with one that works with your opener, then reprogram it. Writing your new code down somewhere safe saves a call later.
6. Cables fray at the bottom corners
What you notice: Loose strands of wire near the bottom brackets, rust on the cable, or a door that starts sitting lower on one side.
Why it happens: Dust and sprinkler water collect at the bottom corners of the door. Over time the cable dries out, rusts, and strands break. A weak spring puts extra strain on the cables too.
The fix: Stop using the door if you see broken strands. Cables are under spring tension, so replacing them is technician work. Both cables are usually replaced together, along with a check of the drums and springs. See cable repair.
Homes near Sand Hollow see this the most, see garage door repair in Hurricane.
7. The door binds or jerks in the track
What you notice: The door hesitates, shudders, or jerks at the same spot every time it moves.
Why it happens: Dust builds up in the track, especially if someone greased it, because grease grabs dust and turns into paste. A track knocked slightly out of line makes it worse.
The fix: Wipe the tracks clean with a dry rag and remove any old grease. Check that the tracks are straight and the brackets are tight. If a track is bent or pulled away from the wall, call before it throws a roller.
8. Springs wear out sooner than expected
What you notice: The door feels heavier, will not stay halfway, or the opener strains. Eventually, a loud bang.
Why it happens: Springs are rated by cycles, and many homes here use the garage as the front door. Heat adds wear on top of daily use.
The fix: New springs matched to your door's weight, replaced as a pair on two-spring doors, with a balance check and an opener force reset. For busy garages, ask about higher cycle springs.
Call or text 435-773-8856
Tell us what the door is doing. Free estimate, no prices online.
Stay ahead of the heat
Most of these problems start small. A ten minute check before summer catches a lot of them: look for daylight under the door, wipe the sensors, wipe the tracks, lubricate hinges, bearings, and springs, and check the lift cables where they attach at the bottom. Spot something off? Call or text 435-773-8856 for a free look at the problem and a quote. It is a lot easier to fix a seal or a sensor in April than to deal with a dead door on a 110 degree afternoon.
FAQ
Why does my garage door opener stop working when it is hot?
The opener lives in the hottest part of the garage, and its electronics do not like it. A unit that runs at 8 a.m. and quits at 4 p.m. is a strong hint. Call 435-773-8856 to have it tested.
How do I keep dust out of my garage door rollers?
You cannot keep it all out, but sealed bearing rollers hold up much better. Wipe the tracks clean, do not grease them, and lubricate the hinges and roller bearings.
Why does sunlight make my garage door reverse?
Low sun shining straight into one of the safety sensors can confuse it. It usually happens at the same time each day on west-facing doors. A technician can adjust or shade the sensor.
How often should I replace my garage door bottom seal in St. George?
There is no set schedule. Check it before each summer. If you see daylight, cracks, or flat spots, it is time.
Can heat warp a garage door?
Thin single-layer steel doors can bow a little when one side bakes and the other is shaded. Insulated doors handle the temperature swing better.
What happens when you call
- Call 435-773-8856. Tell us your city or neighborhood.
- Describe what the door is doing. Up, down, or stuck partway. A bang, a loose cable, a dead remote. If a car is stuck inside or the house is open, say so.
- Get a free estimate and a time. We tell you what it sounds like, how the job is quoted, and the soonest a technician can come. If that is not today, we say so.
Call or text for a free estimate
Tap to call or text and tell us what the door is doing.