IPS Controllers M920 - Chlorine;Bromine Level Too High or Alert LED On; Display and LEDs Off; Warranty; IPS-M920 pH;Dual ORP Controllers

M920 & M920W pH/Dual ORP Controller Owner’s Manual
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3. Controller undershoong set level: 1) Check for proper valve
posions and leaks in chlorine lines, or 2) Increase dosing me if
using med feed, or switch to connuous feed if using a salt chlorine
generator.
4. Chemical dose me too low: Increase the dose me.
5. Chemical feeder is empty: Rell the feeder.
6. Chemical check valve/injector is clogged: Switch acid feed tube to
chlorine injector to clean, or replace them.
7. 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.
8. Sensor malfuncon: Replace sensor.
D.Chlorine/Bromineleveltoohigh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 high: Check Sanizer level with test kit and adjust
as necessary.
3. Controller overshoong set level: Lower dosing me, or switch from
connuous feed to med feed.
4. Problem with chlorine supply: 1) Verify that the chlorine feeder is
not empty, or 2) Verify that the solenoid valve on the feeder is not
stuck open.
5. Sensor p is dirty: Clean according to maintenance
instrucons.
E.DisplayandLEDso
1. No power supply: Check circuit breaker and/or controller fuse
protecng the transformer.