MAINTENANCE
61
5680 331176 (09--08)
ec- H2O
SYSTEM (OPTION)
ec- H2O
MODULE FLUSH PROCEDURE
This procedure is only required when an alarm
sounds and the
ec--H2O
system indicator light
begins to blink red.
1. Drain the solution tank and recovery tank of
all water.
2. Pour 2 gallons (8 liters) of white or rice
vinegar into the solution tank at full strength.
Do not dilute.
NOTE:
Use
white or rice vinegar
only. The
acidity level should be between 4--8%.
Do not
use
other acids for this procedure.
FOR SAFETY: When servicing machine, wear
protective gloves and eye protection when
handling vinegar.
3. Disconnect the black connector fitting at the
scrub head and place the hose into a
bucket. To access the connector fitting, you
may have to remove the front cover from the
machine.
4. Turn the key to the on position.
5. Press and release the
ec--H2O
module flush
switch to start the flush cycle
.
The module is
located behind the front cover.
NOTE: The module will automatically shut off
when the flush cycle is complete (approx. 7
minutes). The module must run the full 7 minute
cycle in order to reset the system indicator light
and alarm.
Repeat flush procedure if the
ec--H2O
module does not reset. If module fails to
reset, contact an Authorized Service Center.