Garage door trouble in a Michigan winter: stuck, frozen, leaking, slow

What the sources say about cold and doors

A garage door lives in an odd place: it is part of the house and part of the weather. In Michigan that means a door that opens and closes through freezing mornings, wet snow carried in on tires, and slush that melts onto the floor and refreezes at the threshold. The next step would be to say what cold does to each part, but the sources we can cite do not go that far.

DASMA, the Door and Access Systems Manufacturers Association, publishes a technical data sheet (TDS 190) on climate and door care. It says doors left open for extended periods face more variation in temperature, moisture and air quality, and that in climates subject to extreme heat or cold and frequent precipitation, doors should be kept closed where possible. It says lubrication, done as the manufacturer’s instructions describe, helps spring life. That is the whole of what we can cite. No source we can cite ties Michigan cold, snow or temperature to spring failure. So this guide gives no weather numbers, and it does not say that Michigan winters break springs faster. It might be true. We cannot show it.

Keep the door closed, and lubricate it the way the maker says

The practical reading of TDS 190 is short. If you are airing out a garage, working in it with the door raised, or leaving it open for a long stretch, you are exposing the hardware to the variation DASMA describes. Closing the door when you are done is free.

On lubrication, the instruction is to follow the manufacturer’s instructions, so find them. Look for them in the door’s paperwork or on the maker’s website. We do not say which product to spray where. If you have no paperwork, ask a technician on the annual visit. DASMA recommends monthly safety checks and maintenance and an annual visit from a trained door systems technician, and that visit could be booked before winter.

Water under the bottom edge

DASMA has a separate technical sheet (TDS 197) on this exact problem. It says rainwater commonly migrates past the bottom edge of exterior-facing sectional doors. It gives two ways to deal with it: a slightly inclined sill with a 3 to 5 degree slope, or a notch in the slab for the door to rest in, with a floor seal.

Read that with the seal in mind. A worn bottom seal is one reason water gets in, and a flat slab that slopes toward the door is another. If the water is coming through the seal, a new seal helps. If the water is running across the slab and over the seal, a new seal may not change much. A quick test is to watch where the water enters during a thaw or a rain: through the rubber or around it. If it comes around the rubber, the fix on DASMA’s list is about the slab, so ask who would do that work. The weather seal page says what a seal replacement involves.

Stuck, frozen or slow: practical checks

A door that will not open in winter can be stuck for a reason that has nothing to do with the hardware, so take a short look before you call.

Look at the bottom edge. If slush or ice has frozen the seal to the floor, the opener may strain or stop. Do not pry or force the door. Look at the opening for anything lodged in the track, such as packed snow or a dropped object, but do not reach into the track when the door could move.

Then stop. If the door will not lift, is crooked, sits lower on one side, or you heard a bang, you are in the territory the federal opener rule describes. Its required instructions say to have a qualified service person make repairs to cables, spring assemblies and other hardware, and warn that weak or broken springs may allow the door to fall rapidly, causing injury or death. DASMA says spring systems are dangerous and should be repaired only by trained professionals, and that cables should be replaced only by a trained technician. Do not use the opener repeatedly to force it. Read the bang and the broken spring if a bang came first.

The opener and the remote in the cold

We hold no source on how cold affects openers and remotes, so these are plain checks. If the remote works inside the house and not at the door, try a fresh battery in the remote. If the wall button works and the remote does not, that points to the remote, its battery or its pairing, and the maker’s instructions say how to pair it. If the opener runs but the door barely moves, do not push it harder.

One safety item applies in every season. If you adjust anything on the opener, the federal rule says to retest the reversal: the door must reverse on contact with a 1 1/2 inch object, or a 2 by 4 laid flat, on the floor. DASMA says that if the door does not reverse readily after contacting an obstruction, the sensitivity may be set wrongly, which is dangerous, and it recommends a trained door systems technician for that work. A door dragging through ice and snow can tempt you to tune the opener yourself. Do not. See the reversal test guide.

Insulation and the winter garage

Insulation is the usual winter question. We cover it in the guide on insulated doors and R-value, and the short answer from DASMA is that the R-value quoted for a door section and the U-factor of the installed door are not comparable. We have no source for savings, and we make no savings claim.

A short pre-winter checklist

None of this is a rule from a code. It is a list of things to look at, drawn from the sources above.

• Read the manufacturer’s lubrication instructions and follow them.
• Look at the bottom seal for splits and gaps, and watch where water enters during the next thaw.
• Test the reversal with a 2 by 4 laid flat and see that the door reverses on contact.
• Look at the sensors for an even, steady light and clean the lenses.
• Book the annual visit from a trained door systems technician, and tell them about any noise or crooked travel.
• Keep the door closed when you are not using the garage.

If something on the list fails, the symptom checker says what it points to and whether the job is one for a homeowner.