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; heater disabled; spa may run pumps briefly then shut down
Dry Heater or Inadequate Water in Heater Tube
drY
Display shows drY or DRY; spa disables heater and may show FLO-related errors
Confirmed Dry Heater Condition
dY
Display shows dY or DY; spa may not heat properly and may shut down heater quickly
Dry Heater Detected During Heating Cycle
EC
Display shows EC or ECON; spa heats only during filtration cycles and may not reach set temperature quickly
Economy Heating Mode Enabled
FLC
Display shows FLC or FL2; 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; heater will not turn on; may show intermittent flow icon
Flow Switch Open (Insufficient Water Flow Through Heater)
HL
Display shows HL or HFL; 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 spa is not in use
Freeze Protection Mode Active
LOC
Display shows LOC or LOCK; buttons on topside panel do not respond
Panel Lock or Child Lock Activated
OH
Display shows OH or OHH; 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; spa may not start normal operation after power-up
Priming Mode or Pump-Related Error
SE
Display shows SE or SENSOR; spa may shut down heating and pumps
General Sensor Error or Sensor Out of Range
SLP
Display shows SLP or SLP mode; spa temperature drops more than expected between cycles
Sleep Heating Mode Enabled
SN1
Control panel displays SN1 and 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 spa will not heat; temperature reading is extremely high or shows dashes
Low-Temperature Sensor (Sensor 2) Open or Disconnected
SN3
Display shows SN3; spa may shut down heating and pumps intermittently
High-Limit Sensor Failure or Disagreement Between Sensors
— —
Display shows two dashes or blank temperature; spa may not heat
Temperature Not Available / Sensor Not Reading
Symptom
Circulation pump is not running; water at heater return is still; spa may show FLO or dr errors
Circulation Pump Failure or Airlock
Symptom
Jets are weak or some seats have very low water pressure even when 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 ozone injector
Ozone System Failure
Symptom
Spa cover is very heavy and waterlogged; difficult to open and close
Waterlogged or Failed Foam Core in Spa Cover
Symptom
Spa does not heat; temperature remains far below setpoint even though pumps run
Heater Not Energizing or Ineffective Heating
Symptom
Spa is leaking water inside the equipment bay; puddles form under the control pack or pumps
Internal Plumbing or Component Leak
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 trips the GFCI breaker immediately or within a few seconds of turning it on
Ground Fault or Short Circuit in Spa Electrical System
Symptom
Spa water has a strong burning or electrical smell near the equipment bay
Overheating Electrical Component or Wiring
Symptom
Spa water has a strong musty or moldy odor even after adding sanitizer
Biofilm and Organic Contamination in Plumbing
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; topside display is completely blank and no pumps run
No Power to Bullfrog Spa Control Pack
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 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; heater disabled; spa may run pumps briefly then shut down
|
Dry Heater or Inadequate Water in Heater Tube | View Details |
| drY |
Display shows drY or DRY; spa disables heater and may show FLO-related errors
|
Confirmed Dry Heater Condition | View Details |
| dY |
Display shows dY or DY; spa may not heat properly and may shut down heater quickly
|
Dry Heater Detected During Heating Cycle | View Details |
| EC |
Display shows EC or ECON; spa heats only during filtration cycles and may not reach set temperature quickly
|
Economy Heating Mode Enabled | View Details |
| FLC |
Display shows FLC or FL2; 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; heater will not turn on; may show intermittent flow icon
|
Flow Switch Open (Insufficient Water Flow Through Heater) | View Details |
| HL |
Display shows HL or HFL; 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 spa is not in use
|
Freeze Protection Mode Active | View Details |
| LOC |
Display shows LOC or LOCK; buttons on topside panel do not respond
|
Panel Lock or Child Lock Activated | View Details |
| OH |
Display shows OH or OHH; 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; spa may not start normal operation after power-up
|
Priming Mode or Pump-Related Error | View Details |
| SE |
Display shows SE or SENSOR; spa may shut down heating and pumps
|
General Sensor Error or Sensor Out of Range | View Details |
| SLP |
Display shows SLP or SLP mode; spa temperature drops more than expected between cycles
|
Sleep Heating Mode Enabled | View Details |
| SN1 |
Control panel displays SN1 and 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 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; 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; spa may not heat
|
Temperature Not Available / Sensor Not Reading | View Details |
| – |
Circulation pump is not running; water at heater return is still; spa may show FLO or dr errors
|
Circulation Pump Failure or Airlock | View Details |
| – |
Jets are weak or some seats have very low water pressure even when 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 ozone injector
|
Ozone System Failure | View Details |
| – |
Spa cover is very heavy and waterlogged; difficult to open and close
|
Waterlogged or Failed Foam Core in Spa Cover | View Details |
| – |
Spa does not heat; temperature remains far below setpoint even though pumps run
|
Heater Not Energizing or Ineffective Heating | View Details |
| – |
Spa is leaking water inside the equipment bay; puddles form under the control pack or pumps
|
Internal Plumbing or Component Leak | 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 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 |
| – |
Spa water has a strong burning or electrical smell near the equipment bay
|
Overheating Electrical Component or Wiring | View Details |
| – |
Spa water has a strong musty or moldy odor even after adding sanitizer
|
Biofilm and Organic Contamination in Plumbing | 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; topside display is completely blank and no pumps run
|
No Power to Bullfrog Spa Control Pack | 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 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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