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The following is a list of possible problems and their causes. The CycleFlo also has a built-in self-test mode that
allows dynamic testing of all components.
Troubleshooting Guide
Problem
No operation at all
LED Display shows
incomplete digits
Front Panel Button(s) don't
work
Pump won't operate when
RUN button is pressed
Pump won't operate
(Cycles count down and
valve driver LED's blink)
(CYCLES count down but
no valve driver LED's)
Troubleshooting
Possible Cause & Remedy
1. Blown fuse – check fuse & replace with 250V 1/4A type
2. Emergency Stop switch OFF – press switch
1. Poor ribbon cable connection – turn power off and unplug then re-plug
ribbon cable on main board and display board
2. Damaged Display board – replace board
1. Poor ribbon cable connection – turn power off and unplug then re-plug
ribbon cable on main board and display board
2. Loose mounting screw - Make sure mounting screws on Display board are
securely tightened
3. Damaged Display board – replace board
1. Incorrect operating mode – make sure SW1-6,7,8 are all in the OFF
position
2. No or Low air supply – check air supply to make sure there is sufficient
pressure and air available
1. Bad solenoid wire connections – turn off power and check wire connections
from solenoid valve #1 & #2 to make sure they are all connected and
seated properly
2. Bad solenoid valve(s) – turn off air supply and listen for 'clicking' on
solenoid valves; replace valves if no 'clicking' is audible
1. Bad valve drivers on main board – replace main board
309003
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