IPS Controllers M920 - Feeder Not Operating; Flow LED Off

M920 & M920W pH/Dual ORP Controller Owner’s Manual
36
F.Feedernotoperang
1. No Flow: Flow light LED must be on.
2. Inadequate Flow: Check ow through the ow cell and controller.
3. Blown output fuse in the controller: Replace fuse.
G.FlowLEDo
1. Verify that all appropriate valves are open.
2. Verify that there is sucient pressure in the line. Close right side
valve slightly if necessary.
3. Verify that the ow switch is securely connected to the
controller terminals.
4. Both the pH and ORP dose outputs are disabled if the green Flow
LED is not illuminated.