Up and Down Garage Doors services the LiftMaster 84504R and 84505R across Richmond, Delta, Tsawwassen, Ladner, Vancouver’s west side, West Vancouver, and Squamish. We repair these legacy belt-drive units daily and handle full replacements with the current 6580L model. Same-day service is often available — call 778-873-7282 to book.
What the 84504R / 84505R actually is
This opener sits in the Legacy Plus and Contractor tier. It uses a belt drive powered by a 1/2 HP DC motor. That combination keeps things quiet — quieter than a chain drive, anyway — which matters when there’s a bedroom above the garage. Some units shipped with a built-in camera. Others include battery backup. Standard LED lighting comes on every model. LiftMaster discontinued this line around September or October 2025, so you won’t find it as a current catalog item. We still see plenty of them in the field across Metro Vancouver. If yours is running fine, we’ll keep it running. If it’s giving you trouble, the direct replacement is the 6580L.
The belt drive is the main reason people picked this model. Steel-reinforced belt, DC motor, soft start and stop. It doesn’t shake the header brackets the way a chain drive can. The camera versions let you peek at the garage from your phone, though the app experience on these older units isn’t what you’d get on a new myQ opener. Battery backup units will run a few cycles during a power outage — handy in Squamish when the wind takes the grid down. Warranty coverage follows whatever LiftMaster printed in the original documentation. We don’t set those terms.
Professional installation for this specific model
We don’t just hang the rail and call it done. The 84504R and 84505R need a solid header bracket anchored into framing, not drywall. We check the ceiling joists or install blocking if the original mount is weak. The rail assembles in sections — we make sure the trolley engages cleanly and the belt tension is set to spec. Too loose and it skips. Too tight and you burn the motor bearings.
Travel limits and force settings get programmed at the wall control or the logic board. We run the door through full cycles, adjusting up and down limits so the seal compresses evenly without the opener fighting the floor. Force settings are critical on a DC motor — they’re not the old mechanical dials. We set them so the door reverses on a 2×4 but doesn’t false-reverse on a cold morning when the seals stick.
Safety sensors go at six inches off the floor, one each side. We align them with a laser level, not by eyeballing. The LED on each sensor has to stay solid. If the beam gets knocked by a garbage can or a bike tire, the door won’t close. We zip-tie the wires to the track so they don’t dangle into the door’s path.
If the unit has Wi-Fi and camera features, we pair it to the homeowner’s network on the spot. That means the myQ app, account creation, and a quick test of the live view. Some of these older Legacy units need a firmware update before they’ll talk to the current app. We handle that. If the homeowner’s router is on the other side of the house and the signal’s weak at the garage, we’ll tell you straight — a mesh node or extender might be needed. We don’t sell networking gear, but we’ll point you in the right direction.
Every install ends with a full safety inspection: balance test, reversal test, force test, hardware check on the door itself. We lubricate hinges, rollers, and springs. If the door’s heavy or the springs are tired, we’ll flag it before the new opener has to do all the work. A garage door opener isn’t supposed to be a winch.
Common repair issues specific to belt drive
Belt drives age differently than chain or screw drives. The belt itself stretches over time. You’ll hear a slap-slap sound on startup — that’s the belt teeth jumping a cog on the motor sprocket. If we catch it early, we can tension the belt. If the teeth are rounded off, the belt needs replacing. We carry belts for these units.
The DC motor board is another failure point. Power surges take them out. You press the remote and nothing happens — no click, no hum, no light. Sometimes the logic board is fine but the RPM sensor on the motor shaft has failed. The opener thinks the door isn’t moving and shuts down. We test both before swapping parts.
Camera units have their own quirks. The lens gets dusty or spider-webbed. The Wi-Fi radio drops off the network after a router reboot. Sometimes the camera module itself fails while the opener keeps working. We can replace the camera module separately on most of these.
Battery backup units — when the backup dies, the opener will beep every 30 seconds or flash an LED code. Homeowners think the opener’s broken. Usually it’s just the 12V battery pack. We swap it in ten minutes. If the charging circuit on the logic board fried, that’s a board replacement.
Standard LED lighting is reliable, but the light cover gets brittle from heat cycles. It cracks, falls off, and the bulb socket gets exposed. We replace the lens cover. It’s a ten-dollar part but you have to find the right one for this model generation.
Troubleshooting symptoms and what they usually mean
Door opens a foot then reverses — safety sensor alignment or a broken wire. We check the LEDs first. If they’re solid, we test the wire continuity back to the opener. Rodents love chewing those low-voltage wires in crawl spaces.
Remote works but wall button doesn’t — usually a wire issue at the wall control or a bad button. Sometimes the logic board’s wall control terminal fails. We test with a jumper at the opener to isolate it.
Opener runs but door doesn’t move — trolley disengaged. Pull the red emergency release handle. If the trolley’s stuck on the rail, the belt may have jumped or the trolley carriage is cracked. We’ve seen both.
LED flashes a code — LiftMaster uses blink codes. Five blinks, pause, five blinks is RPM sensor. Four blinks is safety sensors. We know the codes by heart. We don’t guess.
Battery backup beeping — dead backup battery or failed charging circuit. We test the battery under load. If it’s under a year old, it might be a warranty item with LiftMaster. If it’s older, we replace it.
Camera offline in app — usually the opener lost Wi-Fi. Power cycle the opener, then the router. If it won’t reconnect, the radio module may have failed. We can check signal strength at the ceiling with a meter.
How this model compares to others in the lineup
The 84504R and 84505R were the belt-drive workhorses in the Legacy Plus tier. They sit above the chain-drive 81650 and below the jackshaft 8500. The current direct replacement is the 6580L. That model keeps the belt drive and DC motor but updates the myQ connectivity, adds a stronger LED light bar, and uses a newer logic board platform. If you’re replacing an 84504R today, the 6580L is what we’ll quote. Same rail footprint in most cases, so the swap is clean.
Compared to the chain-drive 81650, the 84504R runs quieter and vibrates less. That’s the main upgrade. Compared to the 8500 jackshaft, the 84504R needs ceiling space but costs less installed. The jackshaft frees up ceiling room and works on high-lift or vertical-lift tracks — the 84504R doesn’t. Different tools for different jobs.
A service call in Steveston
Last March we got a call from a homeowner on Chatham Street in Steveston. Their 84505R had started making a grinding noise on the way down, then stopped halfway and reversed. They’d tried the emergency release — door moved fine by hand. Opener lights flashing five blinks.
We showed up around 10 a.m. The belt was shredded at the motor sprocket. The sprocket teeth were worn down to nubs — the belt had been slipping for a while and chewed them up. The homeowner hadn’t noticed the slap-slap startup noise getting worse over months. We had the sprocket and belt in the van. Swapped both, re-tensioned, reprogrammed limits. Door ran smooth. Total time on site: ninety minutes. They asked if they should upgrade to the 6580L. We said the repaired unit has plenty of life left if the motor board holds. They kept it. Saved them a grand.
Frequently asked questions
How much does installation cost for a replacement opener?
Opener installation typically runs $350 to $650 installed depending on the model tier and the condition of your existing wiring and rail. If we can reuse the current rail and the electrical is solid, you’re at the lower end. New rail, new wiring, or tricky ceiling access pushes it up. The opener itself is separate — we’ll quote the 6580L specifically since the 84504R is discontinued. No surprise fees. We tell you the total before we start.
What’s involved in the install appointment?
We remove the old unit, inspect the mounting points, assemble and hang the new rail, wire the sensors and wall control, program travel and force, pair Wi-Fi if the model supports it, run a full safety inspection, and lubricate the door. Most swaps take two to three hours. If the door needs spring work or roller replacement, we’ll catch that during the inspection and discuss it with you before adding anything.
Should I repair my 84504R or replace it?
If the repair is a belt, sprocket, battery, or sensor — fix it. Those are cheap relative to a new opener. If the logic board is dead and the unit is over ten years old, replacement makes more sense. The 6580L gives you current myQ, better lighting, and a fresh warranty. We’ll lay out the parts cost versus replacement cost and let you decide. No pressure.
Can you come today?
Same-day service is often available, especially if you call early. We run trucks out of Richmond covering Delta, Tsawwassen, Ladner, Vancouver’s west side, West Vancouver, and Squamish. Emergency after-hours calls carry a premium. Call 778-873-7282 and we’ll give you the next open slot.
My 84505R camera won’t reconnect after a router change — is the camera broken?
Not necessarily. These Legacy units store the old network credentials and don’t always clear them cleanly. We put the opener in Wi-Fi setup mode, forget the old network in the app, and re-pair. If the radio module has failed, the opener still runs — you just lose the camera view. We can test the module on site and replace it if needed.
What warranty covers the opener versus your labour?
The opener manufacturer warranty comes from LiftMaster per the original documentation — we don’t set those terms or timelines. Our labour warranty is separate. Ask us about our labour warranty when you book. If a part we installed fails, we cover the labour to swap it. If the opener itself has a factory defect, that’s a LiftMaster claim. We’ll help you navigate the process but we don’t adjudicate their warranty.
We also handle garage door opener repair across all brands, new garage door installation, scheduled garage door maintenance, and emergency garage door repair when something snaps at 11 p.m.
Call 778-873-7282 — Up and Down Garage Doors, based in Richmond, serving Metro Vancouver and Squamish.