★★★★★
After a nearby lightning strike fried our previous opener's logic board, the contractor specifically recommended the 990LM. Cheap insurance.
Liftmaster
990LM Garage Door Opener Surge Protector
A surge protector engineered for the three things a regular power strip can't protect: the opener's 120 V power line, its low-voltage safety-sensor wiring, and its wall-station control wiring. Logic boards on modern openers cost $200+ to replace — the 990LM costs $22 and shields all three circuits, including against most lightning-induced surges.
$21.95
● In stock — ships next business day
🛟 Free technical support
📄 Installation & FAQ
- ModelLiftmaster 990LM
- Protects120 V power · safety sensors · control wiring
- FitsAll Liftmaster openers built 1994–present
- MountingPlugs into opener's ceiling outlet
- IndicatorLED shows protection status
- WarrantyCovers connected opener up to $2,500
In the box
- Liftmaster 990LM surge protector
- Mounting hardware
- Warranty registration card
- Instruction manual
Compatible openers
If your model isn't listed, send us a photo and we'll verify before you buy.
Liftmaster (all 1994+)
1245
1255
1265
2245
2265
2280
3220
3245
3255
3265
3280
3500
3585
3595
8500
8550W
Chamberlain (all 1994+)
HD400
HD600
HD700
HD900
HD950
WD822KD
WD832KEV
Sears Craftsman
Any 1994+ model
Most logic-board failures we see are surge-related — a single nearby lightning strike can fry the board even if the house didn't take a direct hit. The 990LM pays for itself the first time it does its job.
Why a regular surge protector isn't enough
Standard power strips only protect the 120 V plug. The opener has three vulnerable circuits — and the most expensive damage usually comes through the safety-sensor wires, which run all the way across the garage floor.
- 120 V power line — a normal power strip handles this.
- Safety-sensor low-voltage wiring — long runs near the floor pick up induced surges.
- Wall-station control wiring — runs across the wall, equally exposed.