ROLA-CHEM Digital Controller PN 554135 5/04/2017 Page: 14 of 20
6. Troubleshooting
6.1 Chemicals not feeding
*
FLOW light on Controller must be illuminated.
Check flow switch in Globe Flowcell if light is not on.
*
Feeder power and time switches must be in ‘CONTINUOUS’ position.
Check feeder by using alternate power source.
*
Factory setting for feed time is 0.6 sec on with 5 minute delay.
Feeders may require longer feed time.
6.2 Displayed chemical level does not correspond to actual level
* ORP=0, pH=6.0 indicates sensors (probes) are attached to incorrect connector
* Sensors (probes) need cleaning.
* Sensors (probes) need replacing.
Note: ORP probe reading can be affected by pH probe.
Both probes must be in good operating condition.
6.3 Set-points not being reached/maintained
*
Factory setting for feed time is 0.6 sec on with 5 minute delay. Feeders may require
longer feed time. If time is too short, set-points will not be maintained. If time is too
long, overfeeding chemicals will occur. Correct time is dependent on multiple factors
such as pool/spa water volume, feeder output, chemical concentration and chemical
needs.
* Controllers are designed to maintain set-points. Do not expect controllers to make
major adjustments—major changes should be done manually.
* Pump/feeders must be large enough to reach desired set-points in a relatively short
time. Automation using controllers may require larger feeder or more concentrated
chemicals than system that uses continuous time controlled feeding (i.e. feeders only).
