Frequently asked questions
The questions we hear most often. Can't find an answer? Reach out — every product we carry includes free technical support.
- How do I know if a remote will work with my opener?
- My remote is not working properly. What can I do?
- My door won't close and the lights blink. How do I fix it?
- My remote has 8 or 9 DIP switches. How do I program it?
- What is facility code, block coding, and range?
- Is there a universal remote?
- Where can I find wholesale or bulk pricing?
- Do I need a PayPal account to checkout?
- Does TD Supplies have a return policy?
- Why are some products marked "3rd Party"?
- Where can I find an answer not on this list?
How do I know if a remote will work with my opener?
Start by identifying your opener — the model number is printed on the back of the motor housing, and on most modern Liftmaster/Chamberlain units there's a colored "learn" button that tells you which generation of remote to buy. Compatibility is listed on every product page in the chips section. Manufacturer links are on our resources page.
If you're unsure, send us your opener brand and model and we'll verify compatibility before you buy. Free technical support is available via our contact form.
My remote is not working properly. What can I do?
A typical visor or keychain remote has a range of 3–5 car lengths. If yours falls short of that, try the following before assuming it's dead:
- Replace the battery. A weak battery is the most common cause of poor range.
- Check line of sight. Car bodies and metal garage doors weaken the signal.
- Clear the receiver and re-program the remote (see the product manual or the manufacturer's site).
- Disconnect the wall pushbutton briefly. Power-line interference on the bell wire is a common culprit.
- Look for nearby interference sources — TV/CCTV cable amplifiers, fluorescent or LED fixtures, surge protectors, battery chargers, and timers (sprinkler, alarm, lighting).
If none of the above resolves it, the remote may have failed. We carry replacements for every major brand — browse remotes or contact us for a special order.
When I try to close my door, the opener lights blink and the door won't close. How do I fix it?
Two common causes:
Safety beam blocked or misaligned. The photo eyes near the floor on each side of the door must see each other for the door to close. Clear any obstruction (boxes, leaves, cobwebs) and verify the LEDs on both sensors are solid green. Bumped sensors often need a small alignment nudge.
Lock feature activated. The wall control panel has a button with a padlock symbol. When engaged, it disables remote-activated opening (used as a vacation lockout). Press it once to deactivate. The exact sequence varies by manufacturer — see the manufacturer's website for your model.
My remote has 8 or 9 DIP switches in the back. How do I program it?
If you have a working remote or a receiver with the same number of switches and the same frequency, simply match the new remote's switch positions to the old one. If switch counts differ, the procedure varies by manufacturer.
Liftmaster guidance:
- Existing 8-switch remote numbered 1–8: match switches 1–8 on the new remote and set switch 9 to the middle (off).
- Existing 8-switch remote numbered 2–9: match switches 2–9 and set switch 1 to the middle.
- Old 3-button remotes that use the large button to open: set switch 1 to the negative position.
- No working remote? If your opener has a learn/smart button, set the new remote's switches to any random pattern, then press and hold the opener's learn button and the remote button simultaneously to pair.
What is facility code, block coding, and range?
High-security access systems like Sentex CLIKcard, Sentex Autokey, and Liftmaster Passport use a two-digit facility code (FC) printed on the back of every remote. The receiver only accepts remotes whose facility code matches its own — a remote from a different facility code won't work, even on the same hardware.
Within a facility, each remote also has a unique sequence number ("range"). This means a single lost or stolen remote can be deactivated by removing just that number from the system, without re-keying every remote. Bulk orders ship block-coded — sequential numbers — so you can enroll the entire batch by entering the first and last numbers, instead of programming each remote individually.
Is there a universal remote?
Short answer: no remote works on every opener. Each manufacturer uses different frequencies and rolling-code protocols (Security+, MegaCode, Intellicode, SecureCode), and no transmitter has them all.
The closest to universal is the Chamberlain Clicker CLT1D, which works with about 90% of openers — but it specifically does not support Genie Intellicode, Stanley SecureCode, or Linear MegaCode systems. Those need brand-specific remotes.
Where can I find wholesale or bulk pricing?
Bulk pricing tiers are listed on individual product pages for orders of 10 or more. For orders over 80 units (typically apartment complexes, HOAs, and parking facilities), contact us for custom pricing and lead times on block-coded fobs.
Do I need a PayPal account to check out?
No. PayPal handles our payment processing, but you can pay as a guest with Visa, Mastercard, American Express, or Discover. SSL encryption protects your card details — we never see your payment information.
Does TD Supplies have a return policy?
Yes — 30 days from the original order date. Unopened items in original packaging are returned with no restocking fee; incomplete returns are charged a 15% minimum restocking fee. Manufacturer's defects are replaced free with a similar or better model. See our about page for full terms, or email returns@tdsupplies.com to request a return.
Why are some products marked "3rd Party"?
A handful of products fulfill via Amazon or our partner TexDoor LTD while we transition between primary suppliers. This guarantees in-stock availability and prompt shipment during the transition. The product, warranty, and pricing are unchanged — only the carrier differs.
Where can I find an answer not on this list?
Free technical support is available by phone, fax, and email. Hours of operation are on our contact page. We answer brand and model questions the same day during business hours.