GS Series
GS501 User Guide
GS501 Dip Switches
GS501 Schematic
GS520 User Guide
GS523DZ User Guide
GL Series
GL2000 Tech Book
GL2000 Sub PCB installation
GL8000 M3 Tech Book
GL8000 Dip Switches and Schematic
BP Series
Revolution System Install and Service
BP6013G1 Tech Book
BP6013G2 Tech Book
BP6013G3 Tech Book
BP601G1 Tech Book
Earlier SIG Series
SIG200
SIG500
Other Models
Coast Spas
Touchpads
SpaTouch
ML400
ML700
ML900
TP400
TP600
TP800
TP900
VL702
VL801
SL550
| Pressure Switch Model Controllers | (No M7 Sensor) |
| Code | Fault |
| PD | Power Down, On battery backup |
| OH | Overheat |
| Flo/FL | Flow Problem |
| Cool | Spa is 11 degrees below the set temperature |
| ICE/IC | Possible freeze condition |
| SN1/SN | Hi-Limit fault |
| SN3/SN | Temperature sensor fault |
| ILOC | Interlock fault |
| EC/ECON | Spa is in Economy Mode |
| STD/ST | Spa is in Standard Mode |
| SL/SLP | Spa is in Sleep Mode |
| Flashing LED Message | |
| Code | Fault |
| 1 Flash Every 3 Seconds | Hi-Limit Fault |
| 2 Flashes Every 3 Seconds | Pressure Switch Closed (FLC) |
| 3 Flashes Every 3 Seconds | Pressure Switch Open (FLO) |
| 4 Flashes Every 3 Seconds | Temperature Sensor Fault |
| Flash (1 Sec On, 1 Sec Off | Hi-Limit (OH) |
| Flash (Briefly off every sec) | Sensor Fault |
| Flash (Briefly on every sec) | Pressure Switch Fault |
| With M7 sensors | (Sensor on either side of heater) |
| Code | Fault |
| – – -, – – | Temperature not available (Economy mode or sleep mode) |
| – -F, – -C or – – | Temperature not available (Priming) |
| CFE, CONFIG | Configuration error (Dip switch settings) |
| CrC, CHKSUM | Failed the program checksum test (Firmware installation) |
| dr / Heater may be dry will retest shortly | Possible dry heater |
| drn, DRAINING | Pump 1 is on while draining |
| drY, dy, Heater dry service reqd | Verified dry heater |
| Ecn, Ec | Spa is in economy mode |
| gFI, GFCI | Spa could not trip the RCD |
| HFL, HL HTR Flow low | Low Flow (Large difference between sensors) |
| Hot, Hot-Call SVC | Extreme overheat (Pump may be stuck on) |
| ICE, IC, Freeze COND | Potential freeze conditions (Pumps run) |
| LF, Low Flow | Verified there is low flow |
| OHH, HH, HTR Temp LMT Service Reqd | Heater has overheated |
| OHS, OH, SPA Temp LMT | Spa has overheated |
| PHH, PH is High lower PH | pH Level is high |
| PHL, PH is low raise PH | pH Level is Low |
| Pr, Priming mode takes 4 Min | The spa is operation in priming mode |
| PSt, Persist fail | The Persistent memory cannot be read |
| Rt9, Test GFC | Reminder time to check the RCD |
| rCA, Change mineral cartridg | Reminder time to change the Nature 2 cartridge |
| rCH, New filter | Reminder time to change the filters |
| rCL, Clean filter | Reminder time to clean the filters |
| rCO, Clean cover | Reminder time to clean the spa Cover |
| rdr, Drain water | Reminder time to drain water |
| rPH, Check PH | Reminder time to check pH levels (Adjust) |
| rSA, CK Sanitizer | Reminder time to check sanitizer levels (Adjust) |
| rtC, RTC Failure | Real time clock cannot be read |
| rtr, Treat Wood | Reminder time to treat wood |
| SAH, Sanitizer High | Sanitizer level is high |
| SAL, Sanitizer Low | Sanitizer level is Low |
| SbY, Standby Mode | Spa is in standby mode |
| SE, Standard economy | Spa is in standard economy mode |
| SF, Safety Fault | There is a suction block (Pipe block) |
| SLP, SL | Spa is in Sleep mode |
| SnA, SA, Sensor A service Reqd | Sensor A is not operating correctly |
| Snb, Sb, Sensor B service Reqd | Sensor B is not operating correctly |
| SnS, Sn | Sensors are out of balance |
| Std, St, Standard | Spa is in Standard mode |
| StU, Stuck on | Pump appears to be stuck on |
