37X INSTALLATION & OPERATION MANUAL
372/373 MODEL
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Error #611, 612, 613: CO2 or Solution Leak
The barrel pressure is rising during a fill circuit diagnostic test.
Error #621, 622, 623: Barrel Leak
The barrel pressure is dropping during a fill circuit diagnostic test.
1
Determine if the barrel is filling with CO2 or liquid. If the barrel liquid level is low enough use a
flashlight to look at the back of the barrel and see if liquid is entering the barrel. Replace a leaking
solenoid.
2
Ensure the solenoids are not manually turned on by going to the MANUAL ON/OFF menu. Check
to see if either solenoid is receiving power by removing the leads and testing with a voltmeter. If
12 VDC is measured on the CO2 solenoid or 24 VAC is measured on the solution solenoid then
replace the control board.
1
Look for any obvious leaks by searching for liquid along the product line from the solution
module to the back of the barrel.
2
Inspect the rear seal to determine if the leak is originating from it.
3
Inspect the relief valve in the faceplate to determine if the leak is originating from it. Press and turn
the relief valve to firmly seat.
4
Inspect the dispensing nozzle to determine if the leak is originating from it.
