IPS Controllers M720 - Troubleshooting

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M720 pH/ORP Controller Owner’s Manual
IV. Troubleshoong
A. pH level too low or Alert LED on
1. pH Set level is too low: Check pH level with test kit and adjust
Set Level as necessary.
2. Chemical dose me too high: Lower dose me.
3. Chemical feeder is empty (base): Rell the feeder.
4. Sensor malfuncon: Replace sensor.
*Low alkalinity can also cause pH to dri to lower levels. Al-
ways target 80-120ppm
B. pH level too high or Alert LED on
1. Sensor p is dirty: Clean according to maintenance
instrucons.
2. Improper pH sensor calibraon: Adjust pH calibraon.
3. Chemical tank is empty (acid): Rell the tank.
4. Chemical Feed pump or squeeze tube malfuncon: Repair the
feed pump or replace the squeeze tube. A squeeze tube will
last 3-6 months for commercial properes and 6-12 months for
residenal properes.
5. Chemical dose me too low: Increase dose me.
*High alkalinity will require more acid than usual to maintain
pH levels. Always target 80-120ppm
C. Chlorine/Bromine level too low or Alert LED on
1. pH should be at your desired set level before addressing any
potenal ORP problems
2. ORP Set level is too low: Check Sanizer level with test kit and
adjust Set Level as necessary
3. Controller undershoong set level: 1) Check for proper valve
posions and leaks in chlorine lines, or 2) Increase dosing me