Vienna electronic 2

[rebetli]

Hi,
I have a Vienna board.
After power on : power LED lights, status LED blinks boiler starts to warm up, but no motor function
( no motor noise ).
In test mode: neither function works: no central motor move, no grinder motor move etc., LED activity is OK.

Any idea?

Regards,
Rebetly

 

[hmilbradt]

Hi,

Look at the diagram of the brew unit motor -->> MotorReg-Vienna ... Your description of the malfunction points to a blown Triac T3 or a malfunctioning ISO1.
Connect Pin 4 and Pin 6 of ISO 1 with a thin, isolated wire --- check both motors in test mode , if both work now T3 is o.k., but ISO1 does not provide a gate signal. Further trouble shooting has to continue with ISO 1 and the µP-Signal for ISO1.

regards
Harry

 

[rebetli]

Hi,
Negativ, neither helps.
The electromagnet do not works to.( wich helps to get the grinded caffe into the main unit )
Regards,
Rebetli

 

[hmilbradt]

Hi,

This is the third function that does not work. Describe the history of your board. What made the board malfunctioning ??

regards
Harry

 

[rebetli]

Hi,
Processor blowed up. I changed it.
D13 becames shortcut. I changed it. ( I think processor blowed because this )
Regads,
Rebetli

 

[rebetli]

Any idea?