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 the 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 the spa shuts down.
High Temperature Protection / Overheat (alternate code)
E04
Control panel displays E04, and the 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 the bubble function will not operate.
Air Blower Motor Fault
E09
Control panel shows E09, and the spa cannot maintain temperature.
Heating Efficiency / Sensor Calibration Error
E10
Control panel displays E10, and the spa stops heating or filtering.
Water Flow / Filter Error (some newer models)
E90
The control panel displays E90, and the spa stops heating and/or circulating water.
General Communication / Flow Error
E91
The control panel displays E91, and the spa will not run filtration or heating.
Low Water Flow / Circulation Fault
E92
The control panel shows E92, and spa functions are locked out.
Communication Error Between Control Panel and PCB
E93
The control panel displays E93, and heating cannot be activated.
Temperature Sensor (NTC) Fault
E94
Control panel shows E94, and the spa shuts down heating.
Water Temperature Out of Range / Overheat Protection
E95
Control panel displays E95, and the 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 the spa cannot be operated.
Power Supply Frequency / Voltage Error
E98
Control panel shows E98, and the spa shuts down immediately after start.
RCD/GFCI or Ground Fault Protection Error
E99
Control panel displays E99, and the spa cannot be started.
Critical System Error / Self-Diagnostic Failure
Symptom
Air bubbles coming from suction or return fittings when the 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 a temperature that is clearly incorrect compared to the actual water temperature.
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 the spa.
Poor Circulation / Low Flow
Symptom
Loud roaring or whistling noise when the 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 the 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 a loud humming or grinding noise from the heater pump unit during filtration.
Noisy Circulation Pump.
Symptom
Spa powers on but will not start heating when the 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 the control panel.
No Power / Dead Unit
Symptom
Spa will not start bubble function; the button beeps but nothing happens.
Non-Responsive Air Blower.
Symptom
Water appears cloudy or milky despite filtration.
Poor Water Clarity / Contamination.
Symptom
Water has a 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 the bottom of the 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 the 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 the spa shuts down.
|
High Temperature Protection / Overheat (alternate code) | View Details |
| E04 |
Control panel displays E04, and the 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 the bubble function will not operate.
|
Air Blower Motor Fault | View Details |
| E09 |
Control panel shows E09, and the spa cannot maintain temperature.
|
Heating Efficiency / Sensor Calibration Error | View Details |
| E10 |
Control panel displays E10, and the spa stops heating or filtering.
|
Water Flow / Filter Error (some newer models) | View Details |
| E90 |
The control panel displays E90, and the spa stops heating and/or circulating water.
|
General Communication / Flow Error | View Details |
| E91 |
The control panel displays E91, and the spa will not run filtration or heating.
|
Low Water Flow / Circulation Fault | View Details |
| E92 |
The control panel shows E92, and spa functions are locked out.
|
Communication Error Between Control Panel and PCB | View Details |
| E93 |
The control panel displays E93, and heating cannot be activated.
|
Temperature Sensor (NTC) Fault | View Details |
| E94 |
Control panel shows E94, and the spa shuts down heating.
|
Water Temperature Out of Range / Overheat Protection | View Details |
| E95 |
Control panel displays E95, and the 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 the spa cannot be operated.
|
Power Supply Frequency / Voltage Error | View Details |
| E98 |
Control panel shows E98, and the spa shuts down immediately after start.
|
RCD/GFCI or Ground Fault Protection Error | View Details |
| E99 |
Control panel displays E99, and the spa cannot be started.
|
Critical System Error / Self-Diagnostic Failure | View Details |
| – |
Air bubbles coming from suction or return fittings when the 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 a temperature that is clearly incorrect compared to the actual water temperature.
|
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 the spa.
|
Poor Circulation / Low Flow | View Details |
| – |
Loud roaring or whistling noise when the 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 the 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 a loud humming or grinding noise from the heater pump unit during filtration.
|
Noisy Circulation Pump. | View Details |
| – |
Spa powers on but will not start heating when the 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 the control panel.
|
No Power / Dead Unit | View Details |
| – |
Spa will not start bubble function; the 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 a 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 the bottom of the spa liner (not at hoses).
|
Puncture or Seam Leak in Spa Floor/Wall. | View Details |
No matching codes found
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