Problem 4 - All of the LEDs on every keypad are blinking.
Solution 2 - Inspect the auto-fill valve for proper operation.
The autofill valve allows water to flow into the steam boiler. The control board on the machine will
not allow the autofill valve to remain activated for no more than approximately 120 seconds. If the
autofill valve remains activated for more than 120 seconds, the machine will shut power to the au
-
tofill coil off, and cause all of the LEDs on every keypad to start blinking to indicate that the autofill
circuit has timed-out.
1. Remove the ma-
chine’s top panel.
2. Remove the ma-
chine’s right side panel
and surround.
Important! - Before proceeding with solution 2, the following steps must be accomplished.
1. Turn off the main water supply to the machine.
2. Locate the expansion valve in the drain box.
3. Turn the barrel of the expansion valve counter-clockwise to relieve pressure in the
front boiler.
4. When the lower portion of the gauge reads 0 bar, you may proceed.
3. Remove the control
box mounting bracket
from the machine.
4. Disconnect the
power leads going to
the solenoid coil.
5. Disconnect the inlet
and outlet tubes and
remove the autofill
valve from the ma-
chine.
6. Remove the end-
cap from the valve
stem.
7. Remove the coil
retaining nut.
8. Remove the coil
from the valve stem.
Solution 1 - Ensure the water supply is turned on and the filters/softeners are
operating properly.
If the water supply is turned off or the in-line water filters and/or softeners are clogged, water flow
into the machine will either be cut off completely or restricted. Lack of water flow into the machine
will cause the autofill circuit to time-out.
