Consulting the tables below will help you troubleshoot your garage door opener issues. Most garage door opener malfunctions are easy to understand and fix, although you do need reliable instructions. This is exactly what you’ll find in the Moore-o-Matic troubleshooting tables below.
Moore-O-Matic 700 garage door opener troubleshooting
| SYMPTOM | POSSIBLE CAUSE | REMEDY |
| Starts without apparent cause (phantom operation) | Unwanted radio signal from unknown source Intermittent short in wall switch wiring Receiver decoding chip bad | Change digital code Remove cause of short Replace or repair receiver |
| Works from wall switch but not from radio control | Dead battery in transmitter Faulty radio receiver or transmitter | Replace battery Repair or replace radio set |
| Works from radio control but not from wall switch | Defective or "open” wall switch or wall switch wiring | Locate “open" and repair |
| Does not run, no sound when button is pushed | Faulty control board | Replace board |
| Loose connector or broken wire | Repair wire | |
| Dead 115V power source (garage wiring) | Replace fuse or reset circuit breaker | |
| Will not shut off at limit(s) | ‘‘Open" in limit switch circuit- loose connection or broken wire Channel assembly out of phase with head | Tighten connector or repair break Remove head & synchronize with channel assembly |
| Won't reverse on obstruction | Defective circuit | Call to service |
| Lights won t come on | Faulty control board Bad splice connection | Replace board Re-splice |
| Lights won't go off | Faulty control board | Replace board |
| Operator runs sluggish even when disconnected from door | Faulty motor capacitor | Replace motor capacitor |
Moore-o-matic X125 garage door opener troubleshooting
| SYMPTOM | POSSIBLE CAUSE | REMEDY |
| Door will not close using the transmitter. Will only close with constant pressure to push button. | Photo Relay is out of alignment, there is a short in the yellow/black wires (can occur under staples or at screw terminals, or the wiring from the detector to the emitter is incorrect). | Recheck Photo Relay wiring and alignment. |
| Starts without apparent cause (Phantom operation) | Unwanted radio signal from unknown source Intermittent short in wall switch wiring Receiver decoding clip bad | Change digital code Remove cause of short Replace or repair receiver |
| Works from wall switch but not from radio control | Dead battery in transmitter Faulty radio receiver or transmitter | Replace battery Repair or replace radio set |
| Works from radio control but not from wall switch | Defective or "open" wall switch or wall switch wiring | Locate "open" and repair |
| Does not run, no sound when button is pushed | Faulty control board | Call to service |
| Loose connector or broken wire | ||
| Will not shut off at limit(s) | "Open" in limit switch circuit— loose connection or broken wire Channel assembly out of phase with head | |
| Won’t reverse on obstruction | Defective circuit | |
| Lights won’t come on | Faulty control board Bad splice connection | |
| Lights won't go off | Faulty control board | |
| Operator runs sluggishly even if disconnected from door | Faulty motor capacitor |
Moore-O-Matic Z133a Series garage door opener troubleshooting
| Problem | Solution |
| Opener does not open from wallbutton or transmitter. | • Check electric power to operator. Check fuses or circuit breakers. |
| • Are all door locks disabled? | |
| • Is beam properly installed and aligned? (Red LED should shine steady) | |
| • Check for dead short in wallbutton wiring. | |
| Opener works from transmitter but not from wallbutton. | • Check wallbutton and wiring for correct wiring or short in wiring. |
| • Make sure that staples do not penetrate wires. | |
| Opener works from wallbutton but not from transmitter. | • If LED on transmitter does not light, change battery. |
| • Check to see that transmitter and receiver are coded alike. | |
| Door will go up, but not down. | • If door will go down when constant pressure is applied, check beam for alignment, obstruction or short in wiring. |
| Door opens and closes by itself. (Phantom operation) | • Change code in receiver and transmitter. |
| • Intermittent short in wiring to pushbutton. Locate and repair or replace wiring. | |
| Light bulbs burn out frequently. | • Use “Appliance” or “Garage Door Opener” bulb. |