The Nice/Apollo 1550 is a 12V DC linear actuator swing gate opener: an 816 screw-drive actuator on each leaf, run by a 936 control board from a battery charged by AC or solar. Nice rates it for leaves up to 16 ft and 600 lb. We diagnose and repair 1550 systems, including older units on the 1050 board and ones we didn't install, starting with the code on the board's display.
Written diagnosis before any work · Operators other companies installed · CSLB #1042768
Not sure which it is? Text us a photo of the operator, or call 661-605-3266.
The 936 board shows two-character codes on its display. From the manual:
Lr flashing: the board has not learned its limits. Lr solid: ready for the learn cycle.
OP solid: open limit reached. CL solid: close limit reached.
-- solid: idle, with no limit active and the BlueBUS devices working.
AL flashing: hard shutdown, with the alarm sounding. Clear the obstruction and press Reset.
E1 flashing: no monitored safety devices detected. Press Learn once one is connected.
E2 flashing: no actuator sensed during learning. Plug the actuator in and cycle the power.
E3 flashing: the external EEPROM failed its read/write test.
E4 flashing: the actuator encoder dropped out during movement. A repeating E4 points to the encoder or the wiring.
Battery connector LED: green if the battery is wired correctly, red if it is reversed.
BlueBUS photo eye LED always on: no signal. Fast flashing: weak signal. Very slow flashing: best alignment.
Most 1550 faults are repairable. The display names the fault, and the 936 board, battery, charger, photo eyes and each 816 actuator are separate parts. Replacement makes sense when an actuator's motor or screw drive has failed late in its life, or when the leaf is beyond Nice's rating of 16 ft and 600 lb.
Nice's TITAN actuator, rated 600 lb at 20 ft or 1,000 lb at 8 ft, fits the mounting geometry of 1500-series actuators, which makes it the step up for a heavier leaf. The current 816 actuator works with the 936, 1050 and Mercury 310 controllers, so an older 1550ETL can usually be repaired rather than replaced. We check the leaf, the brackets and the controller first.
Nice supports the 816 actuator as a current product and has moved the 936 controller documents to its legacy section. We confirm your controller, 936 or 1050, and the actuator part before we schedule the repair, and quote a current Nice controller where a board is no longer available.
Scoped to your property, not a flat per-item rate. These are the factors that move the number, in the order they usually matter. The estimate is free.
Veritas Access Solutions repairs Nice/Apollo 1550 openers across Los Angeles, Ventura and Kern counties, including older 1550ETL units and openers another company installed. We read the board's display, diagnose on site and give you a written diagnosis before any work. Call 661-605-3266, or text a photo of the control board.
AL flashing, with the buzzer sounding for 5 minutes, is a hard shutdown: the gate met two obstructions back to back. Clear the gate's path and press RESET. If it keeps happening, the hinges, the gate or the force setting need attention.
E1: no monitored safety device detected. E2: no actuator sensed while learning. E3: the board's memory failed its test. E4: an actuator encoder dropped out while the gate was moving. Each points to a part or a connection, so we read the code before replacing anything.
Nice's checklist: the UL or edge input, the limit LEDs, anything in the gate's path, and the force setting. Force runs from 01, most sensitive, to 05, and 03 is the recommended default.
Turn off the power, including any backup, then remove the hitch pin from the gate bracket, or take the bracket off the actuator, and open the gate by hand. Nice recommends the hitch pin and R-clip so the gate can be opened quickly in a power failure.
Nice says to replace them every two years. The 1550 runs from a 12V sealed lead acid battery: 35 amp hours or larger on AC charging, 70 or larger on solar. A dark display usually means a flat battery.
It depends on the fault, whether a board or an actuator has failed, the battery and charging, and whether it is a single or double gate. We price after an on-site diagnosis rather than over the phone, and the estimate is free.
Based in Santa Clarita, dispatched across Los Angeles, Ventura and Kern counties.
More Nice/Apollo operators: Nice/Apollo gate operator repair.
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The free estimate prices the work you already want. The paid assessment is a Red Team walk of your perimeter, with a written report.
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