Problems with Aria 400

[RohitG]

The motors and PH200s are working fine.  But the ECSBus LED starts blinking twice a second.

1. If I reboot it, the ECSBus LED flashes once a second.
   
2. Pressing the close button on the remote closes the gate, but it opens soon after.  I think I need to re-memorise the gate positions.
   
3. I managed to register a new remote.
   
4. I want to change the SBS mode to Open Only.  I followed the instructions by holding the T1 and T2 on the remote for 5 secs and then pressing T4 4 times.
   
5. Nothing appears to happen. If the gate is open and I action the SBS input, the gate closes and opens again (see 2).
   
6. I also want to re-memorise the gate leaf opening and closing positions.  I move the gates midway and press P3.  The gates do not move (they did the first time I memorised them, weeks ago).  But now the ECSBus LED starts flashing twice a second.
   

The manual (Table 10) says overload has been detected.  I think this is unlikely.

Table 9 says the intervention of photocell.  But the photocells are clear.  If the gate is closing, interruption of the photo-cell will interrupt that action.  So, they must be fine.

• Any ideas?
  
• Do I need to do a factory reset?, If so, how ?
  

EDIT - I tried the remote at night.  And the gates work fine.  When I press the Close button, they close and stay closed.  When I press the Open button, they open and stay open.  The conclusion I am coming to is that this is temperature related.  I suspect that re-memorisation might work at night, but then surely the system will fail during the day again.