Bullfrog Spas
Bullfrog Spas Hot Tubs & Spas Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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COL
Display shows COL or COOL; spa runs pumps but does not heat; temperature reading is very low.
Cold Water Protection / Freeze or Low-Temperature Condition
dr
Display shows dr or DR; the heater is disabled; the spa may run pumps briefly then shut down.
Dry Heater or Inadequate Water in Heater Tube
drY
Display shows drY or DRY; the spa disables the heater and may show FLO-related errors.
Confirmed Dry Heater Condition
dY
Display shows dY or DY; the spa may not heat properly and may shut down the heater quickly.
Dry Heater Detected During Heating Cycle
EC
Display shows EC or ECON; the spa heats only during filtration cycles and may not reach the set temperature quickly.
Economy Heating Mode Enabled
FLC
Display shows FLC or FL2; the spa may not heat and may run pumps unexpectedly.
Flow Switch Closed When It Should Be Open (Stuck or Shorted)
FLO
Display shows FLO or FL1; the heater will not turn on; it may show an intermittent flow icon.
Flow Switch Open (Insufficient Water Flow Through Heater)
HL
Display shows HL or HFL; the spa stops heating and may shut down pumps intermittently.
High-Limit Trip Due to Low Flow or Localized Heater Overheat
ICE
Display shows ICE or ICE2; pumps run automatically even when the spa is not in use.
Freeze Protection Mode Active
LOC
Display shows LOC or LOCK; buttons on the topside panel do not respond.
Panel Lock or Child Lock Activated
OH
Display shows OH or OHH; the spa shuts down and may run jets to cool water; water feels excessively hot.
Overheat Condition Detected by High-Limit Sensor
P1
Display shows P1 error; Pump 1 will not run or shuts off immediately.
Pump 1 Drive or Overcurrent Fault
P2
Display shows P2 error; Pump 2 does not operate correctly.
Pump 2 Drive or Overcurrent Fault
Prr
Display shows Prr or PR; the spa may not start normal operation after power-up.
Priming Mode or Pump-Related Error
SE
Display shows SE or SENSOR; the spa may shut down heating and pumps.
General Sensor Error or Sensor Out of Range
SLP
Display shows SLP or SLP mode; the spa temperature drops more than expected between cycles.
Sleep Heating Mode Enabled
SN1
Control panel displays SN1, and the spa will not heat; temperature reading is extremely low or shows dashes.
High-Temperature Sensor (Sensor 1) Open or Disconnected
SN2
Control panel displays SN2, and the spa will not heat; temperature reading is extremely high or shows dashes.
Low-Temperature Sensor (Sensor 2) Open or Disconnected
SN3
Display shows SN3; the spa may shut down heating and pumps intermittently.
High-Limit Sensor Failure or Disagreement Between Sensors
— —
Display shows two dashes or blank temperature; the spa may not heat.
Temperature Not Available / Sensor Not Reading
Symptom
Jets are weak, or some seats have very low water pressure even when the pumps are on high speed.
Reduced Jet Flow / Hydraulic Restriction
Symptom
LED lights in the spa do not work, or only some zones light up.
LED Lighting Circuit or Driver Failure
Symptom
One or more jet pumps do not start; pressing the button results in only a click or humming sound.
Jet Pump Motor Seized or Failing to Start
Symptom
Ozone generator is not operating; no ozone bubbles visible at the ozone injector.
Ozone System Failure
Symptom
Spa cover is very heavy and waterlogged, making it difficult to open and close.
Waterlogged or Failed Foam Core in Spa Cover
Symptom
Spa makes loud banging or knocking noises when pumps start or stop.
Water Hammer or Loose Plumbing Components
Symptom
Spa shell or cabinet vibrates excessively and is noisy when jets are on high.
Excessive Vibration from Pump or Imbalanced Operation
Symptom
Spa water is cloudy and does not clear even with filtration running.
Suspended Particles and Poor Filtration
Symptom
Spa water is not circulating through some Bullfrog JetPaks; certain seats have no flow at all.
JetPak Manifold or Diverter Valve Misconfiguration
Symptom
Spa will not power on at all; the topside display is completely blank, and no pumps run.
No Power to Bullfrog Spa Control Pack
Symptom
The circulation pump is not running; water at the heater return is still; the spa may show FLO or dr errors.
Circulation Pump Failure or Airlock
Symptom
The spa does not heat; the temperature remains far below the setpoint even though the pumps run.
Heater Not Energizing or Ineffective Heating
Symptom
The spa is leaking water inside the equipment bay; puddles form under the control pack or pumps.
Internal Plumbing or Component Leak
Symptom
The spa trips the GFCI breaker immediately or within a few seconds of turning it on.
Ground Fault or Short Circuit in Spa Electrical System
Symptom
The spa water has a strong burning or electrical smell near the equipment bay.
Overheating Electrical Component or Wiring
Symptom
The spa water has a strong musty or moldy odor even after adding sanitizer.
Biofilm and Organic Contamination in Plumbing
Symptom
Topside control panel buttons are unresponsive, or only some buttons work intermittently.
Failed or Water-Damaged Topside Control Panel
Symptom
Water is dripping from the bottom of the spa cabinet, but the equipment bay appears dry.
Hidden Plumbing Leak in Shell or Under-Seat Manifolds
Symptom
Water is leaking from around or behind a Bullfrog JetPak seat.
JetPak Manifold or Seal Leak
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| COL |
Display shows COL or COOL; spa runs pumps but does not heat; temperature reading is very low.
|
Cold Water Protection / Freeze or Low-Temperature Condition | View Details |
| dr |
Display shows dr or DR; the heater is disabled; the spa may run pumps briefly then shut down.
|
Dry Heater or Inadequate Water in Heater Tube | View Details |
| drY |
Display shows drY or DRY; the spa disables the heater and may show FLO-related errors.
|
Confirmed Dry Heater Condition | View Details |
| dY |
Display shows dY or DY; the spa may not heat properly and may shut down the heater quickly.
|
Dry Heater Detected During Heating Cycle | View Details |
| EC |
Display shows EC or ECON; the spa heats only during filtration cycles and may not reach the set temperature quickly.
|
Economy Heating Mode Enabled | View Details |
| FLC |
Display shows FLC or FL2; the spa may not heat and may run pumps unexpectedly.
|
Flow Switch Closed When It Should Be Open (Stuck or Shorted) | View Details |
| FLO |
Display shows FLO or FL1; the heater will not turn on; it may show an intermittent flow icon.
|
Flow Switch Open (Insufficient Water Flow Through Heater) | View Details |
| HL |
Display shows HL or HFL; the spa stops heating and may shut down pumps intermittently.
|
High-Limit Trip Due to Low Flow or Localized Heater Overheat | View Details |
| ICE |
Display shows ICE or ICE2; pumps run automatically even when the spa is not in use.
|
Freeze Protection Mode Active | View Details |
| LOC |
Display shows LOC or LOCK; buttons on the topside panel do not respond.
|
Panel Lock or Child Lock Activated | View Details |
| OH |
Display shows OH or OHH; the spa shuts down and may run jets to cool water; water feels excessively hot.
|
Overheat Condition Detected by High-Limit Sensor | View Details |
| P1 |
Display shows P1 error; Pump 1 will not run or shuts off immediately.
|
Pump 1 Drive or Overcurrent Fault | View Details |
| P2 |
Display shows P2 error; Pump 2 does not operate correctly.
|
Pump 2 Drive or Overcurrent Fault | View Details |
| Prr |
Display shows Prr or PR; the spa may not start normal operation after power-up.
|
Priming Mode or Pump-Related Error | View Details |
| SE |
Display shows SE or SENSOR; the spa may shut down heating and pumps.
|
General Sensor Error or Sensor Out of Range | View Details |
| SLP |
Display shows SLP or SLP mode; the spa temperature drops more than expected between cycles.
|
Sleep Heating Mode Enabled | View Details |
| SN1 |
Control panel displays SN1, and the spa will not heat; temperature reading is extremely low or shows dashes.
|
High-Temperature Sensor (Sensor 1) Open or Disconnected | View Details |
| SN2 |
Control panel displays SN2, and the spa will not heat; temperature reading is extremely high or shows dashes.
|
Low-Temperature Sensor (Sensor 2) Open or Disconnected | View Details |
| SN3 |
Display shows SN3; the spa may shut down heating and pumps intermittently.
|
High-Limit Sensor Failure or Disagreement Between Sensors | View Details |
| — — |
Display shows two dashes or blank temperature; the spa may not heat.
|
Temperature Not Available / Sensor Not Reading | View Details |
| – |
Jets are weak, or some seats have very low water pressure even when the pumps are on high speed.
|
Reduced Jet Flow / Hydraulic Restriction | View Details |
| – |
LED lights in the spa do not work, or only some zones light up.
|
LED Lighting Circuit or Driver Failure | View Details |
| – |
One or more jet pumps do not start; pressing the button results in only a click or humming sound.
|
Jet Pump Motor Seized or Failing to Start | View Details |
| – |
Ozone generator is not operating; no ozone bubbles visible at the ozone injector.
|
Ozone System Failure | View Details |
| – |
Spa cover is very heavy and waterlogged, making it difficult to open and close.
|
Waterlogged or Failed Foam Core in Spa Cover | View Details |
| – |
Spa makes loud banging or knocking noises when pumps start or stop.
|
Water Hammer or Loose Plumbing Components | View Details |
| – |
Spa shell or cabinet vibrates excessively and is noisy when jets are on high.
|
Excessive Vibration from Pump or Imbalanced Operation | View Details |
| – |
Spa water is cloudy and does not clear even with filtration running.
|
Suspended Particles and Poor Filtration | View Details |
| – |
Spa water is not circulating through some Bullfrog JetPaks; certain seats have no flow at all.
|
JetPak Manifold or Diverter Valve Misconfiguration | View Details |
| – |
Spa will not power on at all; the topside display is completely blank, and no pumps run.
|
No Power to Bullfrog Spa Control Pack | View Details |
| – |
The circulation pump is not running; water at the heater return is still; the spa may show FLO or dr errors.
|
Circulation Pump Failure or Airlock | View Details |
| – |
The spa does not heat; the temperature remains far below the setpoint even though the pumps run.
|
Heater Not Energizing or Ineffective Heating | View Details |
| – |
The spa is leaking water inside the equipment bay; puddles form under the control pack or pumps.
|
Internal Plumbing or Component Leak | View Details |
| – |
The spa trips the GFCI breaker immediately or within a few seconds of turning it on.
|
Ground Fault or Short Circuit in Spa Electrical System | View Details |
| – |
The spa water has a strong burning or electrical smell near the equipment bay.
|
Overheating Electrical Component or Wiring | View Details |
| – |
The spa water has a strong musty or moldy odor even after adding sanitizer.
|
Biofilm and Organic Contamination in Plumbing | View Details |
| – |
Topside control panel buttons are unresponsive, or only some buttons work intermittently.
|
Failed or Water-Damaged Topside Control Panel | View Details |
| – |
Water is dripping from the bottom of the spa cabinet, but the equipment bay appears dry.
|
Hidden Plumbing Leak in Shell or Under-Seat Manifolds | View Details |
| – |
Water is leaking from around or behind a Bullfrog JetPak seat.
|
JetPak Manifold or Seal Leak | View Details |
No matching codes found
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