Troubleshooting Jandy AquaPure Error Codes

Jandy AquaPure Salt Water Pool Systems deliver high performance and reliable sanitation for swimming pools across the globe. To keep these units running at top efficiency, the digital controls will display a code when something needs service.

AquaPure service codes identify the problem and direct you to an available solution.  Below you’ll find a complete list of Jandy AquaPure service codes, what they mean and how to correct them—all in one easy-to-read table.

Service Codes:

Code #
Possible Cause
Corrective Action
120
Low current in forward direction to cell
Clean cell if necessary and check DC cord
121
Low current in reverse direction to cell
Clean cell if necessary and check DC cord
123
Extremely low current to cell
Clean cell if necessary and check DC cord
124
Higher than normal current to cell
Contact a pool professional
125
Cell needs to be cleaned
Clean cell if necessary
126
Low current in forward direction and VAC input voltage below 100-200 VAC
Contact a pool professional
127
Low current in reverse direction and VAC input voltage below 100-200 VAC
Contact a pool professional
144
Low Salinity (below 2.0 gpl)
Add salt to pool to achieve 3.0 gpl
145
High Salinity (above 4.0 gpl)
Backwash filter if a DE filter is installed. Partially drain pool and dilute with fresh water until salinity returns to 3.0 to 3.5 gpl
170
Possible front board service condition or unit not correctly wired to 120 VAC
Contact a pool professional
171
Possible backboard service condition
Contact a pool professional
172
Flow sensor service condition or flow sensor is unplugged
Contact a pool professional
173
Low VAC input voltage and on board power supply is not regulated or unit not correctly wired
Unit wired to improper AC voltage. Contact a pool professional
174
Pool temperature is too high for operation of AquaPure
Flow/Salinity sensor indicated water temperature at sensor above 108 degrees F. Reduce water temperature
175
Flow sensor air lock condition or very low salinity
Verify proper flow/temperature/salinity sensor installation. Check salinity with Myron “L” meter calibrated for NaCl or test strips. Add salt as necessary

Level 2 Service Codes:

Code #
Possible Cause
Corrective Action
180
Heated sensor element not heating. (Generates 172 code)
Contact a pool professional.
181
Flow sensor temperature sensor failure. (Generates 172 code - flow sensor service)
Contact a pool professional.
182
Salinity Sensor sees less than 0.2 gpl of salt, no salt in pool or sensor air locked. (Generates 175 code – flow sensor air lock)
Contact a pool professional.
183, 184, 185, 186
Flow salinity sensor temperature probe error codes. (They will all generate 172 codes which indicate flow sensor service is required)
Contact a pool professional.
187
Front board power supply either too low or too high. (Generates 173 - Low input voltage code if Level 2 code 188 is present) (Generates 170 code if 188 is not present)
Contact a pool professional.
188
VAC input voltage is too low. (Generates 173 code if Level II code 187 is present)
Contact a pool professional.
189
Relay not conducting in the forward direction. (Generates 171 code - Backboard service)
Contact a pool professional.
190
Relay not conducting in the reverse direction. (Generates 171code - Backboard service)
Contact a pool professional.
191
High cell current (at upper limit of A/D converter) and cell voltage below 19V. (Generates 170 code front board service)
Contact a pool professional.
192
High cell current and cell voltage below 19V. (generates 171 code – Backboard service)
Contact a pool professional.
193
Measured significant cell current when SCRs were turned off. (Generates 170 code – front board service)
Contact a pool professional.
194
Cell Current is 85% lower than desired and cell voltage above 19V (Generates 125 code - Cell dirty or needs replacement)
Contact a pool professional.
194
Salinity invalid due to out of range measurements caused by front board error (Generates 170 code – front board service)
Contact a pool professional.

Additional Letter Service Codes:

Code
Condition
Reason
EC
External Control
ORP unit or external controller has shut off chlorine production.
Lo
Low Temperature Cutoff
Temperature of Pool is < 50ºF (10°C). Chlorine production stopped.
bo
Boost
In “Boost” mode unit will operate at 100% production for 24 run time hours.
HH
High-High
Input has exceeded Maximum Range.
JA
AquaLink® RS Online
AquaLink RS is controlling the AquaPure and desired output percentages.
Jb
Boost (AquaLink RS Interface)
AquaLink RS is controlling the AquaPure and “Boost” is active.

If you need more help understanding the AquaPure Error Codes, or need help fixing the issue, stop by a local Leslie's Pool Supplies store and speak with a trained pool professional today. You can also request pool equipment and repair services by calling 1-800-537-5437 or contacting our Pool Service and Repair Department HERE.


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