Delaval error 4

[Fergieman]

Does anyone else get error 4 on their MPC's ?
New parlour fitted in 2015, fine for a couple of years then started getting error 4 showing. Delaval changed a few MPC's and then brought out a modification in the form of an error4 card. All fine again for a couple of years then start getting the error showing again and the answer now is change the MPC again (now at my expense) it's a PITA.

 

[upnortheast]

Nothing to do with power coming from generator ?? Has been known to upset electronic controls

 

[William james]

Mpc losing communication with milk meter. I assume there mpc 680’s and mm27bc’s?

 

[Fergieman]

Mpc losing communication with milk meter. I assume there mpc 680’s and mm27bc’s?

Yes and yes.

 

[William james]

Do you use the conductivity sensor on the mm27bc?

 

[Fergieman]

Nothing to do with power coming from generator ?? Has been known to upset electronic controls

Good call but none of the problems tie in with genny use.

 

[Fergieman]

Do you use the conductivity sensor on the mm27bc?

It is fitted and works but it's not used that much to be honest.

 

[William james]

You can get ure engineer to change all the milk meter on aplro/delpro to mm27 (not bc) and then change connection type on each milk meter to mpc (from digital)

99 percent of the time that does away with the error 4 problem but you have to do them all and will lose the conductivity function