If a keypad or remote stops working on a cold day, replace its battery first with the type the manual names, and try the wall button. If the wall button works and the remote does not, the battery or programming is the likely cause. If nothing works, check the safety sensors and the power. Never force a stuck door.
Quick answers
Why does my garage door remote not work when it is cold?
A weak battery is the usual cause. Batteries have a rated temperature range that depends on the type, so a nearly empty one can fail first on a cold morning. Replace it and test again.
How do I know if my keypad battery is low?
LiftMaster says dim lights or lights that do not flash can show a worn battery. Some myQ keypads also send a low-battery alert in the app.
Which battery should I use in the cold?
Use the type your manual names. Energizer lists a wider operating range for lithium iron disulfide cells than for alkaline cells, but check that your device accepts that type.
What if a new battery does not fix it?
Try the wall button, check the safety sensors and the opener's power, and reprogram the remote. If the door still will not respond, call a technician and do not force it.
The full explanation
Why cold can end a weak battery
Batteries are rated to work within a temperature range, and the range depends on the type. Energizer's data sheet lists an operating range of 0°F to 130°F for its alkaline cells and -40°F to 140°F for its lithium iron disulfide cells. A battery that was already weak can be the first thing to quit on a cold morning, and a keypad on the outside of the house is exposed to it.
Door maker Clopay lists remote batteries as a first check when a door will not work in cold weather. LiftMaster also lists worn remote batteries among the common reasons an opener stops responding.
What you see and what it means
| What you see | What it likely means | What to do |
|---|---|---|
| Remote works up close but not from the driveway | Weak remote battery | Replace the battery and test from the driveway |
| Keypad lights are dim or do not flash | Weak keypad battery | Replace it; LiftMaster says dim or non-flashing lights can show a worn battery |
| Keypad lights, door does not move | Keypad is not talking to the opener | Re-enter the PIN and check the opener's power |
| Remote and wall button both fail | Opener, power or safety sensors | Check the outlet, the sensors and the manual test below |
| Wall button works, remote does not | Remote battery or programming | Replace the battery, then reprogram if needed |
Check your keypad or remote manual for the exact battery type and steps.
Checks to run in order
Replace the battery
Use the type named in your manual or on the battery door. Install it the right way round. Clopay advises checking the remote batteries, reconnecting the opener and trying again.
Close the keypad cover
LiftMaster says to make sure the cover is secure after the swap, and to re-enter your PIN to confirm the keypad still talks to the opener.
Try the wall button
If it opens the door, the opener and door are fine and the remote or keypad is the issue.
Check the safety sensors
LiftMaster lists misaligned sensors as a common reason the opener stops working. Look for a blinking or dark light on either sensor and wipe off frost or dirt.
Reprogram if needed
A new battery sometimes needs the remote paired again. Follow the manual for your opener.
Safety
If the door does not move, will not close or feels heavy, do not hold the button down, do not bypass a safety sensor and do not touch the springs or cables. DASMA says only trained door technicians should adjust springs, cables, bottom brackets and red fasteners. Stop using a heavy, crooked or off-track door and call for opener repair or garage door repair.
A keypad that works fine inside a warm car but fails in the cold is worth a battery swap before any service call. A new battery costs little and rules out the most common cause.
Keypad and remote parts
If the case is cracked, the buttons no longer respond or the remote will not pair after a new battery, the unit may need replacing. See remotes and parts. A door that is slow or noisy in the cold has a different cause; see opener slow or noisy in the cold.
Who to call
Emil Garage Doors repairs garage doors, springs, cables and openers and installs new doors in Massachusetts, including Lawrence, Lowell and Lynn. Call or send your details with the opener model number and we book the soonest visit.
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Keep reading
Sources
- Energizer: Principal Dry Battery Systems, typical characteristics (operating temperature ranges by battery type)
- LiftMaster support: How do I change the battery in a wireless keypad?
- LiftMaster: Garage door opener repair and maintenance (remote batteries, lubrication, safety sensors, springs)
- Clopay: Fixing garage door problems from cold weather (frozen bottom seal, lubricant, remote batteries, springs, opener)
- DASMA: Automatic Garage Door Opener Safety and Maintenance Guide (monthly checks, manual balance test, safety reverse test, springs and cables)