I will check and post my on and off codes later tonight if I can find the time. I have only access to the remote until next weekend so I won't be able to actually verify anything until then. :s
@Moshe-Livne I agree that the remote must be sending not only the "on"-command, but the whole state as currently displayed on the remote, because if you point the remote away from the pump, make some changes, then point it at the pump and make another change all the changes will come into effect. Then again, the pump itself (mine at least) does remember its last state because it can wake up after a power outage with the same settings as before the outage.