Intex
Intex 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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E01
Control panel shows E01 and spa stops operating
Low Water Flow / Filter Blockage (alternate code on some models)
E02
Control panel displays E02 and heating stops
Water Temperature Sensor Error (alternate code on some models)
E03
Control panel shows E03 and spa shuts down
High Temperature Protection / Overheat (alternate code)
E04
Control panel displays E04 and spa cannot heat
Heater Relay / Heating Circuit Fault
E05
Control panel shows E05 and spa stops heating
Water Flow / Filter Error (alternate code)
E06
Control panel displays E06 and spa functions are limited
Control Panel / Keypad Error
E07
Control panel shows E07 and spa shuts down unexpectedly
Pump Motor Overload / Overheat
E08
Control panel displays E08 and bubble function will not operate
Air Blower Motor Fault
E09
Control panel shows E09 and spa cannot maintain temperature
Heating Efficiency / Sensor Calibration Error
E10
Control panel displays E10 and spa stops heating or filtering
Water Flow / Filter Error (some newer models)
E90
Control panel displays E90 and spa stops heating and/or circulating water
General Communication / Flow Error
E91
Control panel displays E91 and spa will not run filtration or heating
Low Water Flow / Circulation Fault
E92
Control panel shows E92 and spa functions are locked out
Communication Error Between Control Panel and PCB
E93
Control panel displays E93 and heating cannot be activated
Temperature Sensor (NTC) Fault
E94
Control panel shows E94 and spa shuts down heating
Water Temperature Out of Range / Overheat Protection
E95
Control panel displays E95 and spa will not heat
High Temperature Cutoff / Thermal Fuse Trip
E96
Control panel shows E96 and spa functions are disabled
Internal Hardware / PCB Protection Error
E97
Control panel displays E97 and spa cannot be operated
Power Supply Frequency / Voltage Error
E98
Control panel shows E98 and spa shuts down immediately after start
RCD/GFCI or Ground Fault Protection Error
E99
Control panel displays E99 and spa cannot be started
Critical System Error / Self-Diagnostic Failure
Symptom
Air bubbles coming from suction or return fittings when pump is running
Air Ingress into Circulation System
Symptom
Control panel buttons do not respond or respond intermittently
Unresponsive Control Panel / Keypad
Symptom
Display shows temperature that is clearly incorrect compared to actual water
Inaccurate Temperature Reading
Symptom
Filter cartridge becomes dirty or clogged very quickly
Premature Filter Clogging
Symptom
Filter pump runs but there is little or no water movement in spa
Poor Circulation / Low Flow
Symptom
Loud roaring or whistling noise when bubble (air blower) function is on
Noisy Air Blower / Air Line Restriction
Symptom
Spa cover collects water, sags, or is difficult to secure
Cover Fit / Insulation Problem
Symptom
Spa heats very slowly or cannot reach set temperature
Insufficient Heating Performance
Symptom
Spa loses air pressure and becomes soft over several hours or days
Air Leak in Spa Liner or Valve
Symptom
Spa makes loud humming or grinding noise from heater pump unit during filtration
Noisy Circulation Pump
Symptom
Spa powers on but will not start heating when HEAT button is pressed
No Heat / Heater Not Engaging
Symptom
Spa trips household breaker or RCD when turned on
Electrical Short or Ground Fault
Symptom
Spa vibrates excessively or moves slightly on the ground during operation
Excessive Vibration from Pump or Blower
Symptom
Spa wall feels uneven, bulging more in some areas than others
Uneven Support / Overinflation
Symptom
Spa will not power on at all, no lights on control panel
No Power / Dead Unit
Symptom
Spa will not start bubble function; button beeps but nothing happens
Non-Responsive Air Blower
Symptom
Water appears cloudy or milky despite filtration
Poor Water Clarity / Contamination
Symptom
Water has strong chemical or musty odor
Water Odor / Microbial Growth
Symptom
Water leaking from around the heater pump unit or hose connections
Water Leak at Fittings or Pump Housing
Symptom
Water leaking from bottom of spa liner (not at hoses)
Puncture or Seam Leak in Spa Floor/Wall
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E01 |
Control panel shows E01 and spa stops operating
|
Low Water Flow / Filter Blockage (alternate code on some models) | View Details |
| E02 |
Control panel displays E02 and heating stops
|
Water Temperature Sensor Error (alternate code on some models) | View Details |
| E03 |
Control panel shows E03 and spa shuts down
|
High Temperature Protection / Overheat (alternate code) | View Details |
| E04 |
Control panel displays E04 and spa cannot heat
|
Heater Relay / Heating Circuit Fault | View Details |
| E05 |
Control panel shows E05 and spa stops heating
|
Water Flow / Filter Error (alternate code) | View Details |
| E06 |
Control panel displays E06 and spa functions are limited
|
Control Panel / Keypad Error | View Details |
| E07 |
Control panel shows E07 and spa shuts down unexpectedly
|
Pump Motor Overload / Overheat | View Details |
| E08 |
Control panel displays E08 and bubble function will not operate
|
Air Blower Motor Fault | View Details |
| E09 |
Control panel shows E09 and spa cannot maintain temperature
|
Heating Efficiency / Sensor Calibration Error | View Details |
| E10 |
Control panel displays E10 and spa stops heating or filtering
|
Water Flow / Filter Error (some newer models) | View Details |
| E90 |
Control panel displays E90 and spa stops heating and/or circulating water
|
General Communication / Flow Error | View Details |
| E91 |
Control panel displays E91 and spa will not run filtration or heating
|
Low Water Flow / Circulation Fault | View Details |
| E92 |
Control panel shows E92 and spa functions are locked out
|
Communication Error Between Control Panel and PCB | View Details |
| E93 |
Control panel displays E93 and heating cannot be activated
|
Temperature Sensor (NTC) Fault | View Details |
| E94 |
Control panel shows E94 and spa shuts down heating
|
Water Temperature Out of Range / Overheat Protection | View Details |
| E95 |
Control panel displays E95 and spa will not heat
|
High Temperature Cutoff / Thermal Fuse Trip | View Details |
| E96 |
Control panel shows E96 and spa functions are disabled
|
Internal Hardware / PCB Protection Error | View Details |
| E97 |
Control panel displays E97 and spa cannot be operated
|
Power Supply Frequency / Voltage Error | View Details |
| E98 |
Control panel shows E98 and spa shuts down immediately after start
|
RCD/GFCI or Ground Fault Protection Error | View Details |
| E99 |
Control panel displays E99 and spa cannot be started
|
Critical System Error / Self-Diagnostic Failure | View Details |
| – |
Air bubbles coming from suction or return fittings when pump is running
|
Air Ingress into Circulation System | View Details |
| – |
Control panel buttons do not respond or respond intermittently
|
Unresponsive Control Panel / Keypad | View Details |
| – |
Display shows temperature that is clearly incorrect compared to actual water
|
Inaccurate Temperature Reading | View Details |
| – |
Filter cartridge becomes dirty or clogged very quickly
|
Premature Filter Clogging | View Details |
| – |
Filter pump runs but there is little or no water movement in spa
|
Poor Circulation / Low Flow | View Details |
| – |
Loud roaring or whistling noise when bubble (air blower) function is on
|
Noisy Air Blower / Air Line Restriction | View Details |
| – |
Spa cover collects water, sags, or is difficult to secure
|
Cover Fit / Insulation Problem | View Details |
| – |
Spa heats very slowly or cannot reach set temperature
|
Insufficient Heating Performance | View Details |
| – |
Spa loses air pressure and becomes soft over several hours or days
|
Air Leak in Spa Liner or Valve | View Details |
| – |
Spa makes loud humming or grinding noise from heater pump unit during filtration
|
Noisy Circulation Pump | View Details |
| – |
Spa powers on but will not start heating when HEAT button is pressed
|
No Heat / Heater Not Engaging | View Details |
| – |
Spa trips household breaker or RCD when turned on
|
Electrical Short or Ground Fault | View Details |
| – |
Spa vibrates excessively or moves slightly on the ground during operation
|
Excessive Vibration from Pump or Blower | View Details |
| – |
Spa wall feels uneven, bulging more in some areas than others
|
Uneven Support / Overinflation | View Details |
| – |
Spa will not power on at all, no lights on control panel
|
No Power / Dead Unit | View Details |
| – |
Spa will not start bubble function; button beeps but nothing happens
|
Non-Responsive Air Blower | View Details |
| – |
Water appears cloudy or milky despite filtration
|
Poor Water Clarity / Contamination | View Details |
| – |
Water has strong chemical or musty odor
|
Water Odor / Microbial Growth | View Details |
| – |
Water leaking from around the heater pump unit or hose connections
|
Water Leak at Fittings or Pump Housing | View Details |
| – |
Water leaking from bottom of spa liner (not at hoses)
|
Puncture or Seam Leak in Spa Floor/Wall | View Details |
No matching codes found
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