PROGRAMMING INSTRUCTIONS
The 835/836 circuit boards incorporate a safety feature that will put the operator into a hard shut- down mode if the circuit board detects a current sense two consecutive times during a cycle. This hard shutdown condition can only be reset by shorting the FIREBOX or UL connectors on the left side of the circuit board to ground. If a firebox is used in the installation, The firebox door should be opened and closed to reset the circuit board.
Once the operator is installed or if the control board is replaced, you will need to program the control board for proper current sensing. The operator should be functional and the open and close limits set.
1. Push and hold the LED ENABLE button for five seconds.
The “STOP” LED will blink indicating the board is in learn mode.
2.Cycle the gate three full times (must reach the open and close limit switches on each cycle).
The “STOP” LED will now stay illuminated.
3. Adjust the current sensitivity pot to insure safe operation 
COUNTER CLOCKWISE |
| CLOCKWISE |
More sensitivity |
| Less sensitivity |
Gate is easy to current |
| Gate is harder to |
sense |
| current sense |
|
|
|
The current sensitivity may be readjusted at any time without relearning the board.
Periodically check the current sensitivity for safe operation.
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