Code Number Possible Cause Corrective Action
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 MeasuredsignicantcellcurrentwhenSCRswere
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.
7.4 Additional Letter 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 < 54ºF (12.2°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.
Page 44
ENGLISH
Page 44
ENGLISH
Jandy
®
AquaPure
®
/PureLink™ Power Center and Cell Kit
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Installation and Operation Manual
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