Master MCA Alliance Series - Page 17

15
Problem: Control valve does not regenerate automatically when UP and
DOWN buttons are held and depressed
Possible Cause
Solution
AC adapter unplugged
Connect AC adapter
No electric power at outlet
Repair outlet or use working outlet
Broken drive gear or drive cap
assembly
Replace drive gear assembly
Defective PC board
Replace PC board
Problem: Control valve does not regenerate automatically but does when
UP and DOWN buttons are depressed and held
Possible Cause
Solution
Defective PC board
Replace PC board
Set-up error
Check control valve set-up procedure