Question: Cyndi has a rather unique problem… I have a 423lm receiver and having a issue programing it. Should a 63lmc remote work with the receiver?
Answer: Good afternoon Cyndi, although I am not able to locate any reference to the 631MC (possibly a discontinued system), your receiver should work with any 390Mhz, “learn” capable remote such as the 973LM or the 890MAX. Have questions regarding our products?