Maintenance - Kenner KND800 User Manual

The gate can open,
but fails to close.

Maintenance

Every six months check the following items for proper operation of the unit.
* Lubricate shafts and gears.
* Keep opener clean at all times.
* Check and tighten anchor bolts.
* Check for loose or corroded wire
* Ensure the opener is well earthed, and correctly terminated.
* Check the opener stops and reverses the gate when encountering an obstruction and ensure this is tested
each time maintenance is carried out. If this function can't be made operable, remove this opener from
service until the cause of the malfunction is identified and corrected.
4. Check the control board. Replace the control board if necessary.
1. If using a photocell, there may be an obstruction or dirt. Clear the photocell
and try again.
2. The limit switch may have failed. Use a jumper wire to short terminal 4 with
terminal 3 and 5, and then use a remote control to operate the opener.
Replace the limit switch if the motor is able to run in both directions.
3. Check the control board. Replace the control board if necessary.
17