IPS Controllers M820 - Feeder Not Operating Troubleshooting; Flow LED Troubleshooting

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M820 pH/Dual ORP Controller Owner’s Manual
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.