ROLA-CHEM
®
Digital Controller PN 554135 07/11/19 Page: 17 of 24
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.
* Chemical reading has met Set Level.
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. (see Globe Flowcell Operating Manual)
* Sensors (probes) need replacing.
Note: ORP probe reading can be affected by a failing pH probe.
Both probes must be in good operating condition.
* Connect Globe Flowcell ground stud to ground. (see Globe Flowcell Operating Manual)
6.3 Set Level 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 feed time is
too long, overfeeding chemicals may occur. Correct time is dependent on multiple
factors such as pool/spa water volume, feeder output, chemical concentration and
chemical needs.
* Factory setting for Consecutive Feed Alert Limit is 40 cycles for timed feed mode or 40
minutes for continuous feed mode. If set level has not been reached within this
adjustable limit the Digital Display numbers will flash and pump/feeder will be disabled.
If set level cannot be met within this limit then higher limits may be required. See
appendix for adjusting Limit. If Limit is set too high, overfeeding chemicals may occur.
* 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).
