B. Vacuum Circuit 1, Valve Block (Y7) For Leaks

B. Checking vacuum circuit 1, valve block (Y7) for leaks

1 Press the function selection button "Defrost" on the control unit.

2 Evacuate with the tester (approx. 400 mbar) and read off the pressure gauge.




3 If the indication on the pressure gauge changes, check switchover valve block (Y7) and vacuum line medium green/yellow, renew if required.