PROBLEM
CAUSE SOLUTION
1. Insufficient sanitizer production.
A. The test kit reagents or test strips are old or expired.
A. Retest with new reagents or test strips.
B. The unit is set too low in relation to an increased sanitizer demand.
B. Turn up the output dial and/or increase the filter pump run time.
C. The bather load has increased.
C. Set the output control dial to #10 and allow the filter pump to operate
24 hours (were applicable remove the “OFF” tripper from the external time
clock) to super-chlorinate / brominate the water.
D. Sanitizer lose due to intense sunlight exposure.
D. Check the stabilizer level and add cyanuric acid if needed.
(Refer to the Cyanuric Acid Needed for 75 PPM section, page 7.)
If on bromine, replenish bromine residual.
E. The body of water being sanitized leaks.
E. Repair the leak and rebalance the water being sanitized.
(Refer to the Pool Water Preparation section, page 5.)
F. Low salt
F. Check the residual salt level and add if necessary. (Refer to the Salt
Requirements Needed for 3000 ppm section, page 6).
2. Scale build-up within the cell.
A. The water being sanitized contains high pH,
A. Calculate Langelier’s Index to assure balanced water. (See page 5). Adjust
alkalinity and calcium hardness.
the water chemistry and clean the cell (See page 5) Dilute pool water with
fresh water if necessary. Warning- Always add Acid to water never water to
acid.
.
B. The unit is not reversing polarity.
B. Send the control panel back to the factory for service.
C. Possible cell failure
C. Check with either a 504 or 947 cell tester. Replace the cell if needed.
Refer to #4 of this section.
3. DC plug and cell terminals burned.
A. The cell cord plug is not securely pushed onto
A. Ensure that the cell cord plug is pressed completely onto the cell terminals.
the cell terminals allowing moisture to seep into the plug.
Check the cell terminals and clean with a dry cloth to remove
all dirt and corrosion.
B. The cell terminals leak.
B. Shut off the main filter pump and patch the cell terminal(s) with epoxy putty
and leave the filter pump off for 24 hours.
C. Completely failed cell
C. Replace the cell.
4. Premature cell failure. (Requires replacement cell. Normal cell life, if sized and operated correctly, is 3 - 5 years.)
A. The service indicator has been ignored allowing the unit to
A. Check and add salt if needed. (Refer to the Salt Requirements Needed
operate (unprotected) at low salt levels.
For 3000 PPM section, page 6.)
B. Abnormally high cell usage due to an insufficient cyanuric acid level.
B. Check the stabilizer level and add cyanuric acid if needed.
(Refer to the Cyanuric Acid Needed for 75 PPM section, page 7.)
C. Debris in Cell
C. Ensure that the strainer union screen is being used. Inspect the cell monthly
and clean debris if required.
5. White flakes in the water.
This occurs when excessive calcium hardness is present in the
Monitor the pH and adjust if necessary.
water being sanitized. This should cease after a few days.
(Refer to the Pool Water Preparation section, page 5.)
6. No AC ON light.
A. Incoming AC power for the main filter pump is not present.
A. Ensure that the main filter pump circuit breaker is set to “ON”.
B. The control panel is damaged.
B. Send the Control Panel back to the factory for service.
C. The unit is not wired properly.
C. Rewire the unit. (Refer to section 3a, page 11.)
D. Pump is off.
D. Make sure pump timer is set properly.
Trouble-Shooting
Model
360 & 840
15
Section 5 a
