Most Stock - A Real Store - Fastest Shipping - The Experts in Spa Parts & Pool Heaters

Free Shipping over $149* - Free, Flat Rate & Express Shipping from VIC, NSW, QLD, WA - *T&Cs Apply

Error 3 for Pool & Spa Heat Pumps

Error 3 / E3 / ER 3 / ERR 3 / ERR03 almost universally relates to a flow issue through many brands of heat pump. This can be caused by:

  1. Not enough flow from the pump
  2. Valves set incorrectly
  3. Plumbing incorrect
  4. Flow switch has failed - link to common heat pump flow switch

  • 100% Owned & Operated Australian Small Business

  • We carry the most spa parts and pool heaters in physical stock.

  • Proud member of the Swimming Pool & Spa Association

  • Proud member of Master Plumbers.
Back to top
No DIY Warning
Electrical and gas parts must be installed and serviced by a licensed, qualified professional with experience in these products. We are not liable for incorrect installation, damage, or injury resulting from work done by an unqualified person. Performing electrical or gas work without the proper qualifications is both illegal and dangerous.

  • Trademark Information

    All trademarks, brand names, and logos on this website belong to their respective owners. Heater and Spa Parts is an independent Australian supplier of replacement parts and accessories. References to trademarks are for identification and compatibility purposes, in accordance with the Trademarks Act 1995.

    Authorised dealer / re-seller / service agent for Fluidra (Astralpool, Zodiac, Hurlcon), Aeware, AquaFlo, Balboa, CG Air, CMP, Darlly, Davey, Dega, Del Ozone, Edgetec, Fluidra, Gecko, Goulds, Hendy, Honeywell, Hurlcon, Hydroquip, ITT, Jandy, Joyonway, Laing, LX, Magnum, Onga, Pentair, Raypak, Rheem, Reemay, S & P, Sensaheat, Spa-King, SpaNet, Spa-Quip, SpaZazz, Teledyne Laars, Waterco, Waterway, Weld-on, Xylem, and many more.