Artesian Spas hot tub error messages (and how to fix them)

Artesian error codes

My Artesian Spas hot tub isn’t working

If you have an Artesian Spas hot tub, you might sometimes get messages or error codes on the hot tub topside screen. Some of these can indicate that you have a fault. Others will display operational messages to ensure optimal usage of the hot tub. 

There are six different ranges within Artesian Spa. They may display different codes. These ranges are:

  1. Platinum Elite 
  2. Artesian Island Spas Elite
  3. Artesian Island Spas
  4. South Seas Spas
  5. Garden Spas
  6. Tidal Fit Swim Spas
Download the full owner’s manuals here.

Artesian Spas hot tub error messages

Knowing what these error and general messages on your Artesian Spa mean, can help you keep on top of any maintenance that is required. Alternatively, if something goes wrong, let your hot tub technician know what is showing and it will help speed up the repairs process if any parts are required. 

 

Platinum Elite Spa error messages

Artesian Platinum series has a range of General Messages. These are operation messages and will appear at the bottom of the normally used screen. They do not necessarily denote a fault, and may not require any action.

They also have messages relating to the heater, sensors, miscellaneous, systems failures and reminder messages.

Code Meaning Action required
____F____C Temperature unknown. None. After 1 min of the pump running the temp. will be displayed
Code 1 Possible freezing condition None. In some cases pumps and heaters may turn on and off.
MO29 The water is too hot A water temp of 43.3 or more has been detected. Spa systems disabled. System will re-set once the temp is below 42.4 degrees. Check for extended pump operation or high ambient temperature.
- Water level is too low Fill the hot tub up. Pumps and heater will stop when this shows. Will only show on a hot tub that uses a water level sensor.
M016 Water flow is low None. Not enough water flow to heater. The heater will start back in 1 min.
M017 Water flow has failed Fix flow problem. Heater is disabled until this problem is fixed. Then reset.
M028 The heater may be dry The spa is shut down for 15 mins. Reset the message to restart the heater.
M027 The heater is dry The spa is shut down due to limited water flow. Sort the flow issue then restart.
M030 The water is too hot The water is over 47.8 degrees. Spa operation has shut down. May indicate a faulty sensor. Contact technician to replace and reset.
M015 Sensors MAY be out of sync by more than 3 degrees Call a hot tub technician if this does not disappear within a few mins.
M026 Sensors ARE out of sync and have been for at least 1 hour. Call a technician for a service
- Communications error Call for service. The control panel is not receiving messages from the system.
M022 Programm memory failure Call for service. This indicates a firmware error.
M021 Persistent memory error Contact your dealer if this occurs on more than one power up
M020 Clock has failed Contact a hot tub technician
M034 A pump may be stuck on Power down the spa. Do not enter the water. Contact a technician
M035 Hot fault Power hot tub down. Do not get in water. Hot tub technician.

You may also get reminder messages on a regular schedule. eg. check pH, clean filter and clean cover. These do not indicate a fault. And will appear on a regular basis to remind you to do them, whether or not you already have.

Artesian Island Spas Elite and Island Spas error messages

Artesian Island and Island Elite Spas use the same codes as Platinum Elite.

Code Meaning Action required
____F____C Temperature unknown. None. After 1 min of the pump running the temp. will be displayed
Code 1 Possible freezing condition None. In some cases pumps and heaters may turn on and off.
MO29 The water is too hot A water temp of 43.3 or more has been detected. Spa systems disabled. System will re-set once the temp is below 42.4 degrees. Check for extended pump operation or high ambient temperature.
- Water level is too low Fill the hot tub up. Pumps and heater will stop when this shows. Will only show on a hot tub that uses a water level sensor.
M016 Water flow is low None. Not enough water flow to heater. The heater will start back in 1 min.
M017 Water flow has failed Fix flow problem. Heater is disabled until this problem is fixed. Then reset.
M028 The heater may be dry The spa is shut down for 15 mins. Reset the message to restart the heater.
M027 The heater is dry The spa is shut down due to limited water flow. Sort the flow issue then restart.
M030 The water is too hot The water is over 47.8 degrees. Spa operation has shut down. May indicate a faulty sensor. Contact technician to replace and reset.
M015 Sensors MAY be out of sync by more than 3 degrees Call a hot tub technician if this does not disappear within a few mins.
M026 Sensors ARE out of sync and have been for at least 1 hour. Call a technician for a service
- Communications error Call for service. The control panel is not receiving messages from the system.
M022 Programm memory failure Call for service. This indicates a firmware error.
M021 Persistent memory error Contact your dealer if this occurs on more than one power up
M020 Clock has failed Contact a hot tub technician
M034 A pump may be stuck on Power down the spa. Do not enter the water. Contact a technician
M035 Hot fault Power hot tub down. Do not get in water. Hot tub technician.

South Sea Spas Error messages

Code Meaning Action required
-- Water temperature unknown Temp. will show after the pump has been running 2 mins
ICE Possible freezing conditions No action required. All equipment will activate to stop components freezing.
OHH Sensors have detected hot tub water above 47.8 degrees Do not enter the water. Remove the cover and allow to cool. Once cooled reset. If the spa temperature does not return to normal contact a hot tub technician.
OHS Sensors have detected water above 43.5 degrees. Do not enter the water. Remove the cover and allow to cool. At 41.7 degrees the spa should reset.
LF Persistent low flow problems (displays on the 5th occurrence in 24 hours) Heater has shut down. Fix flow problem. Press any button to reset
HFL Temperature difference between two temperature sensors is too high. Could indicate a sensor fault If water level is normal, make sure all pumps are primed. You may need to contact a technician
dr The heater MAY be dry due to possible inadequate flow Heater will shut down for 15 mins.Press any button to reset. If problem persists contact a technician.
dry Heater may be dry. Due to low flow. Displays on third time of "dr" Spa is shut down. Will not automatically reset. Press any button to reset.
SnA Sensor that is plugged into jack A is not working Spa has shut down. Call a technician
Snb Sensor that is plugged into jack B is not working Spa has shut down. Contact a technician
SnS Sensors are out of balance If alternating with the temperature it may be temporary. If flashing alone the spa has shut down, contact a technician.

Garden Spa error messages

Code Meaning Action required
-- Water temperature unknown Temp. will show after the pump has been running 2 mins
IC Possible freezing conditions No action required. All equipment will activate to stop components freezing.
HH Sensors have detected hot tub water above 47.8 degrees Do not enter the water. Remove the cover and allow to cool. Once cooled reset. If the spa temperature does not return to normal contact a hot tub technician.
OH Sensors have detected water above 43.5 degrees. Do not enter the water. Remove the cover and allow to cool. At 41.7 degrees the spa should reset.
LF Persistent low flow problems (displays on the 5th occurrence in 24 hours) Heater has shut down. Fix flow problem. Press any button to reset
HL Temperature difference between two temperature sensors is too high. Could indicate a sensor fault If water level is normal, make sure all pumps are primed. You may need to contact a technician
dr The heater MAY be dry due to possible inadequate flow Heater will shut down for 15 mins.Press any button to reset. If problem persists contact a technician.
dy Heater may be dry. Due to low flow. Displays on third time of "dr" Spa is shut down. Will not automatically reset. Press any button to reset.
SA Sensor that is plugged into jack A is not working Spa has shut down. Call a technician
SB Sensor that is plugged into jack B is not working Spa has shut down. Contact a technician
Sn Sensors are out of balance If alternating with the temperature it may be temporary. If flashing alone the spa has shut down, contact a technician.

Tidal Fit swim spas error messages

Code Meaning Action required
____F____C Temperature unknown. None. After 1 min of the pump running the temp. will be displayed
Code 1 Possible freezing condition None. In some cases pumps and heaters may turn on and off.
MO29 The water is too hot A water temp of 43.3 or more has been detected. Spa systems disabled. System will re-set once the temp is below 42.4 degrees. Check for extended pump operation or high ambient temperature.
- Water level is too low Fill the hot tub up. Pumps and heater will stop when this shows. Will only show on a hot tub that uses a water level sensor.
M016 Water flow is low None. Not enough water flow to heater. The heater will start back in 1 min.
M017 Water flow has failed Fix flow problem. Heater is disabled until this problem is fixed. Then reset.
M028 The heater may be dry The spa is shut down for 15 mins. Reset the message to restart the heater.
M027 The heater is dry The spa is shut down due to limited water flow. Sort the flow issue then restart.
M030 The water is too hot The water is over 47.8 degrees. Spa operation has shut down. May indicate a faulty sensor. Contact technician to replace and reset.
M015 Sensors MAY be out of sync by more than 3 degrees Call a hot tub technician if this does not disappear within a few mins.
M026 Sensors ARE out of sync and have been for at least 1 hour. Call a technician for a service
- Communications error Call for service. The control panel is not receiving messages from the system.
M022 Programm memory failure Call for service. This indicates a firmware error.
M021 Persistent memory error Contact your dealer if this occurs on more than one power up
M020 Clock has failed Contact a hot tub technician
M034 A pump may be stuck on Power down the spa. Do not enter the water. Contact a technician
M035 Hot fault Power hot tub down. Do not get in water. Hot tub technician.

If you try these and they don’t work. Or if you have any problems you are unsure about you may need to contact a hot tub technician. We are able to offer repairs and servicing on Artesian hot tubs.

 

In summary

Knowing what your error codes and general messages mean will help you keep your hot tub running optimally. And fix any problems early.

If you do have a code, and you need to call a technician, let them know over the phone or email what the code is so they can help as quickly as possible. 

If you have any other problems please let us know.

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Debbie Ekins
Debbie Ekins
Eagle Leisure - Sales & Marketing Manager Mission = to arm you with the knowledge you need to make the best buying decisions. Fuelled by coffee (and naps). Explorer of Scotland and the world.