Product Recall
We were experiencing technical issues between 25/01/2026 and 24/02/2026 with the submission form. If you registered your recall during that period, please consider to submit it again or please contact our support team on 1300 763 021 (option 3). Our representatives will collect the necessary details and ensure your case is directed to the appropriate team for processing.
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FAQ
GENERAL
Fluidra Group Australia Pty Ltd, the supplier of Zodiac products in Australia, has initiated a Safety Related Recall Campaign involving Z400 MD series Swimming Pool Heat Pumps. Fluidra has initiated this recall in the interest of consumer safety.
Why the product is recalled: The heat pumps capacitor fails to disconnect from the circuit, which can lead to the unit catching fire.
Hazard: There is a risk of serious injury, burns or death if the heat pump's capacitor catches fire. There is also a risk of serious property damage
The following Z400 MD are part of this recall.
(Please note all TD series heat pumps are NOT a part of the recall.)
| Part Number | Model |
| WH000287 | Z400 MD4 ALUMINIUM GREY |
| WH000288 | Z400 MD4 BEIGE GREY |
| WH000289 | Z400 MD5 ALUMINIUM GREY |
| WH000290 | Z400 MD5 BEIGE GREY |
| WH000291 | Z400 IQ MD7-ALU GREY-WIFI |
| WH000292 | Z400 MD7 - BEIGE GREY |
| WH000295 | Z400 IQ MD8-ALU GREY-WIFI |
| WH000299 | Z400 IQ MD9-ALU GREY-WIFI |
| WH000348 | Z400 IQ MD4 GREY WIFI |
| WH000350 | Z400 IQ MD5 GREY WIFI |
| WH000374 | Z400 MD4 - GREY WIFI (PLUG&P) |
| WH000382 | Z400 IQ MD4-AG R32 |
| WH000383 | Z400 IQ MD5-AG R32 |
If you own a Z400 MD heat pump, please follow the steps below to ensure that your product is identified by our technical team and we can assist with the rework.
Please visit www.zodiac.com.au/productrecall (or www.zodiac.co.nz/productrecall for NZ customers) to view the list of models in Step 1 of our recall page. You can also find this information in our recall notice.
Once you have identified that you have one of the recalled models, please proceed to Step 2 which will provide you with instructions on how to disconnect your unit from the power.
Once power has been switched off, please ensure that you fill out the Rework Booking Form (Step 3)*.
For safety and accessibility, please kindly ensure that your unit is easily accessible so that a technician can attend, inspect and perform the rework. *Please note that the form is per product, if you have more than one unit you will need to fill out an additional form.
Once you have registered your Zodiac Z400 unit via the Rework Form (Step 3) on our website - you will receive an automated confirmation that the Recall Customer Support Team has received your submission.
Next, a representative from the Recall Customer Support Team will contact you via telephone or email to confirm that they have all the required information regarding your unit.
Following the confirmation of your contact information and unit details, you will receive an email with more information about your upcoming appointment and next steps.
At this time we are receiving a high volume of submissions and we thank you for your patience as we endeavour to complete the work as efficiently as possible.
The work will be completed by trained technicians.
PRODUCT
Our team of trained technicians will visit your residence to perform the rework on your Z400 heat pump. The technician will remove the faulty component and replace it with a new enclosed capacitor kit, which includes additional safety features and corresponding wiring. This straightforward process will take approximately 15 minutes to complete.
There is no need to worry if your unit has already been switched off. Please ensure it remains switched off until a trained technician can access the heat pump on site and complete the rework.
We aim to complete all reworks as promptly as possible once you submit your case through the recall submission form on our website. Fluidra will endeavor to contact you within 48-72 hours of receiving your form to clarify any missing information. If all information is provided, a technician will reach out to you to schedule a mutually convenient time to visit your location and complete the rework.
You can still enjoy the use of your pool, but if you have any of the affected models, you must immediately stop using the heat pump and disconnect/isolate the unit from the power supply.
Once we have completed the rework of your Zodiac Z400 heat pump, the unit will be safe to use.
Replacement parts supplied under this recall campaign are warranted to be free from defects in materials and workmanship for the remainder of the original Z400 warranty period or for 12 months from the supply of the replacement, whichever is longer.
Please use the below links to view the warranty period for your unit. Please note units purchased prior to October 2020 need to refer to the links at the bottom of the page. https://www.zodiac.com.au/warranty-information (https://www.zodiac.co.nz/warranty-information for NZ customers)
TECHNICAL
When power is removed/disabled from the heat pump, it will no longer be able to be controlled from an automation system. Your automation system will still try to control the heat pump as it wont know it has been powered down. If you have the heat pump assigned to a timer on the automation device to operate outside of normal pool filtration hours or an independent pump is used, disable the heat pump's functionality to prevent pump running time.
If a Z400 MD is connected to the Aux2 terminal of an EXO/Hydroxinator and priority to heat has been enabled, when the chlorinator checks the water temperature and the current water temperature is below the setpoint the filter pump will run indefinitely until the pool temperature rises above the setpoint.
Completely removing the heater from the EXO/Hydroxinator will prevent this occurring. To do this:
Press Menu
Use the Arrow up and down keys to navigate to “Auxiliaries”
Press OK
Use the Arrow up and down keys to navigate to “Assign Heating”
Press OK
Use the Arrow up and down keys to navigate to “NO”
The Axiliaries menu will now display “AUX 2” instead of “AUX 2 / HEATING”
The heater has now been disabled.
Once the rework has been completed, complete the steps again but select YES to assign heating.
Note that reducing the setpoint to something lower than the natural water temperature of the pool would also work; however the pump will operate periodically to check the water temperature.
If a Z400 MD is connected to an Aqualink system and priority to heat has been enabled, when the chlorinator checks the water temperature and the current water temperature is below the setpoint, the filter pump will run indefinitely until the pool temperature rises above the setpoint.
To disable priority to heat
Press Menu
Navigate to System Setup
Navigate to Maintain Temp
OFF
Note that reducing the setpoint to something lower than the natural water temperature of the pool would also work; however the pump will operate periodically to check the water temperature during the regular maintenance period.
A pump will run for the duration of that timer window. if this is in normal sanitation it's not a problem. To remove a heater from a timer/program:
Press Menu
Navigate to Program
Navigate to Pool or Spa Heat
Delete the Program
If a Z400 MD is connected to a Zodiac or Astralpool integrated intelliheat controller for priority to heat, and water temperature is below the setpoint, a pump will run indefinitely for the time period it has set.
For an integrated setup, in addition to disconnecting power from the heater - Disconnect the pump from the intelliheat and plug it into the chlorinators pump power socket after removing the intelliheat's power from the chlorinator. This would then need to be reattached after the recall work. By powering the pump directly from the chlorinator, all normal functionality will be kept.
If a Zodiac or Astralpool independent Intelliheat controller is controlling the Z400 MD and the water temperature is below the setpoint, the independent pump will run indefinitely for the time period set on the controller.
For an independent setup, in addition to disconnecting power from the heater, unplug the independent pump from the Intelliheat OR disconnect power to the Intelliheat. This will need to be reattached after the recall work to enable normal functionality
Pumps may continue to operate without purpose as the heater will not be powered. Please consult the manufacturer of that controller's user manual for direction to remove the heating function temporarily.