Dometic Eskimo Ice 600 Installation & Owner's Manual page 15

7. Check fresh water supply pressure by removing cover to water reservoir and pushing down
float from valve. (Water should be running strongly.) The machine is equipped with a low
water pressure switch which will not allow machine to run if there is less than 10 lbs. of fresh
water pressure. If there is low or no water pressure, check pressure at water inlet connection at
lower back of machine by loosening nut. If pressure is low at this connection, follow water
line and check to be sure that valve is turned on. If pressure is still low, boat's water system
may be malfunctioning. Check ships fresh water pressure at another location such as a sink
faucet. If pressure is good at water inlet but not when float is pushed down, the in line Y
strainer (located in the 1/4" line near water reservoir) may be plugged. To clean: turn off
water to ice machine. Open and clean the stainless steel screen in Y strainer. If water still does
not run in strongly when float valve is depressed, hole in float valve is plugged and must be
cleaned.
8. Temperature control function. The temperature control is designed to stop the ice machine
when the ice in the storage box reaches and contacts the sensor. It will restart when the ice
melts or is removed from contact with the sensor. If machine is not running and all above
checks have been made, the temperature control may be at fault. Follow test procedure #9
below.
9. Temperature control test procedure: Check to see that "S1" is showing on the LCD screen.
The control displays temperature when 24v power is being supplied to this control.
This display screen should be lit any time main power breaker to the ice machine is in the
"on" position. Remove cover. Using a test lead, jump terminal "C" on the lower terminal strip
to "NO". If the machine comes on, then the control may be faulty.
The machine can be run with the temperature control "jumped out", except when the ice storage
box fills to the top, the ice will back up the delivery hose and trip the spout switch.
This will mean that the spout switch will have to be reset manually every time the box fills.
To avoid resetting this switch, the box can be emptied before it fills,
or the main breaker switch can be turned off before the ice backs up the hose.
10. Temperature control adjustment: If temperature control is still not functioning correctly
after checking #9, use the "set" key to enter the programming mode, hit "set" again to view the
"setpoint". It should be set between 45 and 60 degrees. It can be adjusted by running the
machine until ice is against the sensor for five minutes, viewing the temperature readout, and
setting the "setpoint" to that temperature. Set the differential by pressing "set" until "diff" shows
blinking on the screen . The correct setting is "1".