Jacuzzi Hot Tubs Error Codes & Information

hot tub problems

Jacuzzi Hot Tubs and Spas

The family behind Jacuzzi Hot Tubs & Spas first made an aerating pump for hydrotherapy in the 1950s, and they began manufacturing hot tubs two decades later. By the ‘90s, these hot tubs had expanded into backyard models, and the award-winning company spread out into the international market by the year 2000.

The company holds more than 250 patents worldwide, including the first patent in the world for a whirlpool bath. Their models feature eco-friendly and advanced hydrotherapy options, and Jacuzzi Hot Tubs & Spas is headquartered in Chino, California. There are several models available for each group size such as the J-495 in the 6+ Person Series.

Spa Models

Jacuzzi Hot Tubs Company has a great range of Spas, and has been adding models through the years. Below are some of the more recent Jacuzzi models. The Jacuzzi hot tubs are split into five categories the Jacuzzi J- LX series, Jacuzzi J-500 series, Jacuzzi J-400 series, Jacuzzi J-300 series, and the Jacuzzi J-200 series.

The first custom hot tub cover ever made by The Cover Guy was for a Jacuzzi Karma, and we made many of them through the years along with all the Jacuzzi hot tubs. The Cover Guy manufacturers custom hot tub covers for all the Jacuzzi Spa models. We also have a full line of hot tub cover lifters that are perfect for Jacuzzi Hot Tubs.

 

The Jacuzzi  J- 585 hot tub spa is a 6 person hot tub. The J- 585 features four deep bucket seats for the ultimate deep sitting hot tub. The J-585 also has a very good step to enter the hot tub. You can find the Jacuzzi J-585 replacement hot tub cover here. The Jacuzzi  J- 575 hot tub spa is a 6 person hot tub. The J- 575 features two deep bucket seats for the and one deep sitting lounge for best relaxation. The J-575 also has a nice step to enter the hot tub. You can find the Jacuzzi J-575 replacement hot tub cover here.
The Jacuzzi  J- 470 hot tub spa is a 8 person hot tub. The J- 470 features four deep bucket seats for the ultimate deep sitting hot tub. The J-470 also has a very nice center jet in the hot tub. The Jacuzzi Spa J-465 hot tub spa is a 5 person hot tub. The J- 465 features two deep bucket seats and one deep lounge for someone to lay back and relax in. The J-465 is a great spa or hot tub with many seat choices.
The Jacuzzi Spa J-135 hot tub  is a 6 person entry level hot tub. The Jacuzzi Spa J-135 features two deep bucket seats for the and a lounge. The Jacuzzi Spa J-135 has basic jetting making it an entry level hot tub . The Jacuzzi Spa J-280 hot tub spa is a 6 person hot tub. The Jacuzzi Spa J-280 features four deep bucket seats, and basic jetting keeping the cost down. The The J-280 also has a very good step to enter the hot tub.
The Jacuzzi Spa J-355 hot tub is a 4 person tub. The J- 355 features 2 deep bucket seats, one lounge and is a deep sitting hot tub. The J-355 has a small but good step to enter the hot tub. Great tub for a small family. The Jacuzzi Spa J-335 hot tub is a 5 person hot tub. The J- 335 features two deep bucket seats and a lounge and is a deep sitting hot tub. The J-335 is an entry level hot tub with some great jetting.
The Jacuzzi Spa J-210 hot tub spa is a 6 person hot tub. The J- 210 is a throwback to the original hot tub round design. The jetting is very basic but the atmosphere is great in this social hot tub. The jacuzzi spa J-315 hot tub spa is a 6 person hot tub. The J- 315 features two bucket seats and a lounge. The J-315 is similar to the J-325 but has more jetting for more water movement.
The J-365 jacuzzi hot tub hot tub spa is a 6 person hot tub. The J- 365 features four deep bucket seats and four smaller bench seats. The entry area is small, but the footwell jetting is great. The Jacuzzi Spa J-385 hot tub spa is a 6 person hot tub. The J- 385 features four deep bucket seats. The J-385 has a large step to enter the hot tub that can be very useful in the evening.
The Jacuzzi Spa J-325 hot tub spa is a 3-4 person hot tub. The J- 325 features two deep bucket seats and one deep lounge. The J-325 is one of the smaller backyard hot tubs available. The Jacuzzi Spa J-495 hot tub spa is an 8-10 person hot tub. The J- 495 features four deep bucket seats and some good bench seating as well to accommodate all your friends.

Jacuzzi Hot Tubs and Spa Owners Manuals

Jacuzzi Spa J-LX Owners Manual

Jacuzzi Spa J-400 Owners Manual

Jacuzzi Spa J-300 Owners Manual

Jacuzzi Spa J-200 Owners Manual

These are the error codes and display messages that a Jacuzzi Hot Tub may display, along with what they mean and any actions required:

Jacuzzi Hot Tubs LX Collection Error Conditions/ Error Messages

Message Meaning Action Required
COL This only occurs when spa is in Economy mode and indicates a cool condition where temps have dropped 20°F (11°C) below current settings for them. System activates the heater and jets pump 1 to bring temp within 15°F (8°C) of settemps. No action required.Note: this condition often occurs when filling the spa with water since tap water is usually cold.
ICE This only occurs when spa is in Economy mode and stands for “Ice;” means the system has detected a potential condition for freezing and will cause the system to implement freeze protection. No action is needed. Jet pumps 1 and the heater activate automatically to bring the temp to 15°F (8°C) of the settemps. Note: this condition often occurs when filling the spa with water since tap water is usually cold.
Sn1 Stands for “Sensor 1” and displays when the high-limit sensor is malfunctioning. Indicates a shorted sensor and spa is shut down or an open sensor and heater is disabled. Contact a Jacuzzi hot tubs dealer or a service technician.
Sn2 Stands for “Sensor 2” and displays when the temperature sensor is malfunctioning. Indicates a shorted sensor and the heater is disabled. Contact Jacuzzi hot tubs dealer or a service technician.
FL1 or FL2 (Flashing) When FL1 code starts flashing it means the flow switch is malfunctioning and stuck open-likely because of a dirty filter or because there is an air lock problem at the circulation pump intake.When FL2 code starts flashing it means the flow switch isn’t working and it is stuck closed. In both cases, the spa heater will deactivate. Jets pump 1 will likely deactivate, also. 1. Check to see if the water level is below the lowest pillow but above the jets. Add water if needed.2. Check for dirty or clogged filter cartridge.3. a) Remove filter cartridge in order to purge the air lock from the circulation pump intake. b) Hold a garden hose over filter cartridge wall fitting and utilize a rag to make a seal around hose end. c) Get an assistant to help turn the water on for 30 seconds. Then turn it then turn it off. d) Replace the filter cartridge and verify the solution worked.4. If circulation pump is not powering on, try cutting off power at the main breaker. Turning it on will reset cycle for the circulation pump. After the pump primes itself, the error message should go away.5. Contact dealer or a service technician if problem continues.
OH One of the sensors detected that the water in the hot tub is 112°F (44°C). Stands for “Overheat”- and the tub shuts down because water temp is too hot. Low speed jets pump 1 and optional circulation pump (if your spa is equipped so) activates to circulate water through heater. DO NOT GET INTO THE WATER. 1. Take off the spa cover to allow the water to cool down.2. Program setting of spa unit for Economy Mode.3. Raise the water temp settings in order to cancel the Summer Logic condition. See “Summer Log” below.3. Shut the power down to the hot tub and contact the dealer or service technician if the problem continues.
– – – The water temp has raised above acceptable safety limits and triggered the safety “Watchdog” program of the spa system. Condition can cause injury or damage to spa and its components. The spa deactivates in this situation. DO NOT GET INTO THE WATER. Contact dealer or a service technician.
BLB (Flashes in between water temperature and “blb”) Indicates that the Jacuzzi Hot Tubs needs a new UV bulb. Purchase new UV bulb from dealer and reset countdown timer.
Summer Logic “Summer Logic” occurs when the actual water temp for the spa climbs to 2°F (1°C) above set temperatures and is more likely in extremely hot weather. The condition causes the circulation pump to turn off automatically if it’s running in order to avoid adding additional heat to spa water that could cause “Overheat” conditions. This setting is not user-programmable. This condition does not kick in until the water temperature climbs to 95°F (35°C). The spa system’s ability to cool itself down is directly affected by ambient temperatures. Very hot summer ambient temperatures can prevent the spa unit from cooling because it’s insulated construction is designed to minimize operating costs and hold in heat.

 

Jacuzzi Hot Tubs J-400 Error Conditions/ Error Messages

Message Meaning Action Required
Overheat Protection The water temperature is higher than acceptable safety limits. Filter and circulation pump is activated and the heater is deactivated DO NOT GET INTO THE WATER. Take off the spa cover to allow the water to cool down and reduce thermostat settings. Switch spa to Programmable Mode in order to turn the heater on solely during programmed filter cycles. Shut the power down to the hot tub and contact the dealer or service technician if the problem continues.
Water is below set temp Condition that provides freeze protection and activates if temps raise to more than 20°F (6°C) cooler than set point of the temperature. Heater will automatically turn on when this happens and stay in this mode until water temperature reaches 15 degrees below set temperature. No action needed.
Communication Error Communication between circuit board and control panel is malfunctioning. Contact the dealer or service technician if the problem continues.
Pump does not operate Water flow in spa is insufficient or the flow switch is malfunctioning. Check for a clogged filter or low water levels. If buzzing sound or lack of sound is detected, cut off the water to the hot tub – may indicate that pump is not properly primed. Contact the dealer or service technician if the problem continues.
Freeze Protection The spa system has detected a potential freeze condition. The heater and jets pumps continue running until the spa unit is out of the danger zone. No action needed.Note: It isn’t possible to control the pumps manually while the Freeze condition is running. You can push a button on the Control Panel to make the error message go away, but the message will return if the spa unit is still in Freeze condition five minutes later. This condition often occurs when filling the spa with water since tap water is usually cold.
Emergency Shutdown The system has detected that spa water temperatures are above acceptable safety limits. The spa is deactivated for potential damage to spa and its components. DO NOT GET INTO THE WATER. Contact the dealer or service technician.
Open Sensor Means temperature sensor is malfunctioning; heater is taken offline automatically when this happens. Do not attempt to service on your own. Contact the dealer or service technician.
Shorted Sensor Means temperature sensor is malfunctioning; heater is taken offline automatically when this happens. Do not attempt to service on your own. Contact the dealer or service technician.
Open Sensor (Hi-Limit) The hi-limit temperature sensor is malfunctioning; heater is taken offline automatically when this happens. Do not attempt to service on your own. Contact the dealer or service technician.
Shorted Sensor (Hi-Limit) The hi-limit temperature sensor is malfunctioning; heater is taken offline automatically when this happens. Do not attempt to service on your own. Contact the dealer or service technician.
Start-up Malfunction Flow switch is malfunctioning. System is disabled in this event and indicates a shorted or closed flow switch when system is started up. Do not attempt to service on your own. Contact the dealer or service technician.
Open Flow Switch Means that the switch is malfunctioning and staying open, the filter cartridge for the circulation pump is dirty or an air lock issue occurred at the intake for the circulation pump intake. Heater is automatically disabled in this event, and the filter/circulation may be disabled, too. Contact the dealer or service technician.
Closed Flow Switch Means that the switch is malfunctioning and staying closed. Heater is automatically disabled in this event, and the filter/circulation may be disabled, too. Contact the dealer or service technician.
Audio Comm. Malfunction Communication between audio system and the control panel is malfunctioning. Power down the spa. Wait three seconds and then restart the spa to see if error clears up. Contact the dealer or service technician if the problem continues.
Blinking Heater Icon Icon flashes on and off to let you know that the temperature sensor has detected either a temperature difference of-20°F (6°C) difference between set and actual temperature or temp above 112°F (44°C). Can also mean the hi-limit temp sensor is detecting temp above 116°F/46°C.
Please Check Filter Message displays when the reminder time of the filter has expired. Means that the ProClarity/Proclear needs to be cleaned or replaced. Remove the filter/debris bag for and clean or replace.
Feature not Installed Message displays when you try to activate features that are not installed. To clear the message press button D to return to the Main Menu Press the D button to clear the message and return to the main menu.

 

Jacuzzi Hot Tubs J-300 Error Conditions/ Error Messages

Message Meaning Action Required
COL This only occurs when spa is in Economy mode and indicates a cool condition where temps have dropped 20°F (11°C) below current set temps. System activates the heater and jets pump 1 to bring temp within 15°F (8°C) of settemps. No action required.Note: this condition often occurs when filling the spa with water since tap water is usually cold.
ICE This only occurs when spa is in Economy mode and stands for “Ice;” means the system has detected a potential condition for freezing and will cause the system to implement freeze protection. No action is needed. Jet pumps 1 and the heater activate automatically to bring the temp to 15°F (8°C) of the settemps. Note: this condition often occurs when filling the spa with water since tap water is usually cold.
Sn1 Stands for “Sensor 1” and displays when the high-limit sensor is malfunctioning. Indicates a shorted sensor and spa is shut down or an open sensor and heater is disabled. Contact dealer or a service technician.
Sn2 Stands for “Sensor 2” and displays when the temperature sensor is malfunctioning. Indicates a shorted sensor and the heater is disabled. Contact dealer or a service technician.
BLB (Flashes in between water temperature and “blb”) Indicates that spa needs a new UV bulb. Replace UV bulb (you can get one from your authorized Jacuzzi dealer). Reset the countdown timer when finished.
FL1 or FL2 (Flashing) When FL1 code starts flashing it means the flow switch is malfunctioning and stuck open-likely because of a dirty filter or because there is an air lock problem at the circulation pump intake.When FL2 code starts flashing it means the flow switch isn’t working and it is stuck closed. In both cases, the spa heater will deactivate. Jets pump 1 will likely deactivate, also. 1. Check to see if the water level is below the lowest pillow but above the jets. Add water if needed.2. Check for dirty or clogged filter cartridge.3. a) Remove filter cartridge in order to purge the air lock from the circulation pump intake. b) Hold a garden hose over filter cartridge wall fitting and utilize a rag to make a seal around hose end. c) Get an assistant to help turn the water on for 30 seconds. Then turn it then turn it off. d) Replace the filter cartridge and verify the solution worked.4. If circulation pump is not powering on, try cutting off power at the main breaker. Turning it on will reset cycle for the circulation pump. After the pump primes itself, the error message should go away.5. Contact dealer or a service technician if problem continues.
OH One of the sensors detected that the water in the hot tub is 112°F (44°C). Stands for “Overheat”- and the tub shuts down because water temp is too hot. Low speed jets pump 1 and optional circulation pump (if your spa is equipped) activates to circulate water through heater. DO NOT GET INTO THE WATER. 1. Take off the spa cover to allow the water to cool down.2. Program setting of spa unit for Economy Mode.3. Raise the water temp settings in order to cancel the Summer Logic condition. See “Summer Log” below.3. Shut the power down to the hot tub and contact the dealer or service technician if the problem continues.
– – – The water temp has raised above acceptable safety limits and triggered the safety “Watchdog” program of the spa system. Condition can cause injury or damage to spa and its components. The spa deactivates in this situation. DO NOT GET INTO THE WATER. Contact dealer or a service technician.
Summer Logic “Summer Logic” occurs when the actual water temp for the spa climbs to 2°F (1°C) above set temperatures and is more likely in extremely hot weather. The condition causes the circulation pump to turn off automatically if it’s running in order to avoid adding additional heat to spa water that could cause “Overheat” conditions. This setting is not user-programmable. This condition does not kick in until the water temperature climbs to 95°F (35°C). The spa system’s ability to cool itself down is directly affected by ambient temperatures. Very hot summer ambient temperatures can prevent the spa unit from cooling because it’s insulated construction is designed to minimize operating costs and hold in heat.
CF The clean filter timer has expired.The message will flash between “CF”and the water temperature. The countdown timer for the Change Filter feature needs to be reset (page 31). New filters can be purchased from a local Jacuzzi dealer. The spa filters need to be cleaned or replaced.

 

Jacuzzi Hot Tubs J-200 Error Conditions/ Error Messages

Message Meaning Action Required
COL This only occurs when spa is in Economy mode and indicates a cool condition where temps have dropped 20°F (11°C) below current set temps. System activates the heater and jets pump 1 to bring temp within 15°F (8°C) of settemps. No action required.Note: this condition often occurs when filling the spa with water since tap water is usually cold.
ICE This only occurs when spa is in Economy mode and stands for “Ice;” means the system has detected a potential condition for freezing and will cause the system to implement freeze protection. No action is needed. Jet pumps 1 and the heater activate automatically to bring the temp to 15°F (8°C) of the settemps. Note: this condition often occurs when filling the spa with water since tap water is usually cold.
Sn1 Stands for “Sensor 1” and displays when the high-limit sensor is malfunctioning. Indicates a shorted sensor and spa is shut down or an open sensor and heater is disabled. Contact a Jacuzzi hot tubs dealer or a service technician.
Sn2 Stands for “Sensor 2” and displays when the temperature sensor is malfunctioning. Indicates a shorted sensor and the heater is disabled. Contact a Jacuzzi hot tubs dealer or a service technician.
FL1 or FL2 (Flashing) When FL1 code starts flashing it means the flow switch is malfunctioning and stuck open-likely because of a dirty filter or because there is an air lock problem at the circulation pump intake.When FL2 code starts flashing it means the flow switch isn’t working and it is stuck closed. In both cases, the spa heater will deactivate. Jets pump 1 will likely deactivate, also. 1. Check to see if the water level is below the lowest pillow but above the jets. Add water if needed.2. Check for dirty or clogged filter cartridge.3. Jets pump 1 needs an “air lock” purge; do this by loosening up for a few seconds the upper pump head drain screw. This releases trapped air, and when finished, retighten the screw to the drain. ONLY USE FINGER TIGHTENING METHOD!4. Contact dealer or a service technician if problem continues.
OH One of the sensors detected that the water in the hot tub is 112°F (44°C). Stands for “Overheat”- and the tub shuts down because water temp is too hot. Low speed jets pump 1 and optional circulation pump (if your spa is equipped) activates to circulate water through heater. DO NOT GET INTO THE WATER. Contact a Jacuzzi hot tubs dealer or a service technician.
– – – The water temp has raised above acceptable safety limits and triggered the safety “Watchdog” program of the spa system. Condition can cause injury or damage to spa and its components. The spa deactivates in this situation. DO NOT GET INTO THE WATER. Contacta Jacuzzi hot tubs dealer or a service technician.
BLB (Flashes in between water temperature and “blb”) Indicates that spa needs a new UV bulb. Replace UV bulb (you can get one from your authorized Jacuzzi dealer). Reset the countdown timer when finished.