09/10/2025
* Tuscon pumps warning *
Tucson Fluid Dynamics (dark bg)
Product Safety Information Notice
A safety concern has been identified with certain circulating pumps manufactured by Tucson Pumps Limited for use in heating systems.
Product: Tucson circulating pumps (models: 5m, 6m, & 8m)
Manufacturer: Tucson Pumps Limited
Production Period: 2017 – 2024
Serious Risk
It has been identified that the mains electrical coupling supplied with these pumps can be connected in reverse which can pose a serious risk of electrocution.
How to Identify Affected Products
The affected products were manufactured between 2017 and November 2024 and can be identified by the product serial number (S/N) which is included on the label affixed to the pump.
Product Serial No. (SN) Pump Image (print)
Use the link below to the serial number checking tool at https://tucsonpumps.com/serial-number-checking-tool/ if you think your product is affected.
The serial numbers of affected 5m, 6m & 8m circulating pumps are also set out in the table below:
Any Serial No. with Prefix Beginning
S/N D44 02809a or earlier (5m models)
S/N D32 11233b or earlier (6m models)
S/N D32 01197c or earlier (8m models)
S/N C*
S/N B*
S/N A*
S/N 2020*
S/N 2019*
S/N 2018*
S/N 2017*
Unaffected Tucson Circulating Pumps
Tucson circulating pumps manufactured after November 2024 include a redesigned mains electrical coupling which has removed the risk that the electrical coupling can be connected incorrectly. These products will have serial numbers commencing after D44 02809a (for 5m models) and after D32 11233b (for 6m models) and after D32 (for 8m models). These products are not impacted by this programme.
Further Action if you have an Affected Pump
Consumers:
• You may not realise that you have an affected pump, however, given the number of pumps affected, it is recommended that consumers should check.
• An installed pump can remain in operation, but you must not make any physical contact with the pump electrical coupling. Consult Tucson Pumps immediately to schedule an appointment for replacement of the pump motor by a Tucson engineer at your property.
• Contact us at [email protected] or phone +353 (0)1 842 6255 / +44 800 044 3258 to arrange for the installation of a replacement.
Installers:
• If you are aware that you have installed a Tucson circulating pump with a serial number listed above, contact us at [email protected] or phone +353 (0)1 842 6255 / +44 800 044 3258 to arrange for the installation of a replacement.
Merchants:
• If you have stock of Tucson circulating pumps with the serial numbers identified above, stop sales immediately.
• Please contact your Tucson area sales representative or email [email protected].
Under this Product Replacement Programme, installed units of affected pumps should only be replaced by an approved, qualified Tucson service agent/installer, and only with a new circulating pump motor.
Check Your Pump's Serial Number
Tucson Fluid Dynamics (dark bg)
Ireland
Instantor Works, Santry Avenue,
Dublin D09 K160
United Kingdom
1 Dagger Rd, Lisburn,
Northern Ireland BT28 2T
