Genie Error Codes
2128, 3155, 4164, ChainMax, SilentMax, ReliaG series
Count the number of times the diagnostic light blinks after a failed operation, then match the pattern below. Tap share on any code to send it to another tech.
Safety reversing sensor fault (open)
Check that both Safe-T-Beam sensors are connected and aligned.
Safety reversing sensor fault (shorted)
Inspect sensor wiring for damage or short circuits.
Door not closing — GDO Lock engaged
Check if the vacation lock switch on the wall button is engaged. Turn it off.
Safe-T-Beam sensors misaligned
Adjust sensor alignment until indicator LEDs are solid.
Motor thermal protection tripped
Let motor cool. Check door balance and reduce mechanical resistance.
Travel limits not set or need reprogramming
Program travel limits using the SET button procedure in the manual.
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