{"product_id":"balboa-m7-3kw-heater","title":"Genuine Balboa 3.0kW M7 BP\/GS\/EL Heater Assembly - Updated Version - 3kW","description":"\u003c!-- HASP-CANARY: BHR-2.0 \/ balboa-m7-3kw-heater \/ 58107 Plug-N-Click \/ rev 2026-07b --\u003e\u003c!-- HASP fitment: Copper Lug Rule (rev. CLR-1.0). Constants 381 \/ 57 \/ 23 \/ 12.5. SpaPro \u0026 WWDG fingerprint present. --\u003e\n\u003ch3\u003eGenuine Balboa 3.0kW M7 BP\/GS\/EL Heater Assembly - Updated Version - 15\" x 2\" - Plug N Click upgrade.\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eNew Plug-N-Click style replaces older copper lugs.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c!-- HASP fitment: Copper Lug Rule (rev. CLR-1.0). Constants 381 \/ 57 \/ 23 \/ 12.5. SpaPro \u0026 WWDG fingerprint present. --\u003e\n\u003cp\u003eThis is the current \u003cstrong\u003e2024-onwards genuine Balboa M7 3.0kW Plug-N-Click heater assembly\u003c\/strong\u003e, used on Balboa GS, VS, GL, EL, BP and related M7 spa control systems. It is 381mm (15\") long, uses 2\" heater unions and includes two genuine Balboa M7 temperature sensors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMost importantly, this heater supersedes and retrofits the older Balboa M7 3.0kW heaters that connected to the circuit board using L-shaped copper lugs, copper straps or copper plates.\u003c\/strong\u003e Choose the \u003cstrong\u003eFull Retrofit Kit\u003c\/strong\u003e when replacing an older copper-lug heater. Choose \u003cstrong\u003eHeater Only\u003c\/strong\u003e when a Plug-N-Click adaptor is already fitted.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003ePhysically stocked for fast shipping or local pick-up, unlike most drop-shipping websites.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eSupplied by a genuine authorised Balboa dealer and warranty agent.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"border: 2px solid #2b00ff; padding: 14px; margin: 18px 0;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQuick retrofit check\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIf your old heater has L-shaped copper lugs or straps bolted between the heater and circuit board:\u003c\/strong\u003e select \u003cstrong\u003eFull Retrofit Kit\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYour existing heater already plugs into a Plug-N-Click adaptor:\u003c\/strong\u003e select \u003cstrong\u003eHeater Only\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Full Retrofit Kit includes the adaptor that replaces the discontinued copper lugs. The old copper lugs are removed and discarded.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003ch3\u003eReplacing an Older Balboa Heater with Copper Lugs\u003c\/h3\u003e\n\u003cp\u003eOlder Balboa M7 heaters connected to the circuit board using \u003cstrong\u003eL-shaped copper lugs\u003c\/strong\u003e, also described as copper straps, copper plates or terminal connectors. Balboa discontinued that connection arrangement and replaced it with the Plug-N-Click system.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003ePlug-N-Click adaptor bolts onto the circuit board in place of the old copper lugs\u003c\/strong\u003e. The replacement heater then connects to the adaptor using a plug rather than bolted copper straps.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis allows the current heater to be retrofitted to an older Balboa M7 control system.\u003c\/strong\u003e The required adaptor is included with the \u003cstrong\u003eFull Retrofit Kit\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich option do I need?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eL-shaped copper lugs or straps are fitted at the circuit board:\u003c\/strong\u003e choose the \u003cstrong\u003eFull Retrofit Kit\u003c\/strong\u003e. It includes the Plug-N-Click adaptor that replaces the copper lugs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA Plug-N-Click adaptor is already fitted:\u003c\/strong\u003e choose \u003cstrong\u003eHeater Only\u003c\/strong\u003e. The existing adaptor remains in place and the new heater plugs directly into it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitting the adaptor:\u003c\/strong\u003e remove the 3\/8\" stainless steel nuts from the control board, fit the new ring terminals, refit and correctly tighten the nuts, then connect the loom. The old copper lugs are no longer used.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eBalboa M7 Heater Compatibility\u003c\/h3\u003e\n\u003cp\u003eThis is a \u003cstrong\u003e15\" x 2\" Balboa M7 twin-sensor heater\u003c\/strong\u003e. It suits Balboa control systems using a 2\" flow-through heater with \u003cstrong\u003etwo M7 temperature sensors\u003c\/strong\u003e, one at each end of the heater tube. It does not suit older non-M7 systems that use a pressure switch.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCommon compatible Balboa control systems include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGS Series:\u003c\/strong\u003e GS500Z, GS501, GS501Z, GS501SZ, GS510SZ, GS510DZ, GS511DZ, GS520DZ, GS523DZ and GS504DZ\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVS Series:\u003c\/strong\u003e VS300, VS500Z, VS501Z, VS501SZ, VS503SZ, VS504SZ, VS510SZ, VS510DZ, VS511Z, VS511SZ, VS513Z, VS515Z, VS520Z, VS520SZ, VS520DZ, VS523DZ and VS525Z\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGL Series:\u003c\/strong\u003e GL2000, GL2000M3, GL2001 and GL8000\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEL Series:\u003c\/strong\u003e EL1000, EL2000, EL2001, EL5000 and EL8000\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBP Series:\u003c\/strong\u003e BP200, BP500, BP501, BP600, BP601, BP1500, BP1600, BP2000, BP2100, BP6013, BP7, BP8 and suffix variants where the control pack is configured for a 3.0kW 15\" heater\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignature and SCS-era systems:\u003c\/strong\u003e Sig10, Sig10L, SCS 500, SCS 501 and GS501Z retrofit systems commonly fitted to older Signature, Cyclone, Designer, Leisurite and Spa Industries spas\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpa Industries Dominator:\u003c\/strong\u003e including the SIBP601X control pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOther Balboa families:\u003c\/strong\u003e ES, BFBP and other Balboa M7 twin-sensor systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpaPro and WWDG:\u003c\/strong\u003e SpaPro X1, X2 and X3, plus WWDG W1, W3 and Wx systems fitted with a Balboa M7 control pack. Both platforms use the same 2\" heater union, so the heater union gaskets are also shared.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-M7 Balboa systems using a pressure switch\u003c\/strong\u003e instead of two M7 sensors. These systems use the \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/balboa-older-non-m7-heater-element-tube-assy-replacement\"\u003eolder non-M7 heater and tube assembly\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact GS100, GS200 and VS100 control packs.\u003c\/strong\u003e These use a shorter 10\" heater. See the \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/balboa-58202-3-0kw-10-gs100-m7-spa-heater-assembly\"\u003eBalboa 58202 3.0kW 10\" GS100 M7 heater assembly\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eCommon Spa Brands and Models\u003c\/h3\u003e\n\u003cp\u003eThis heater is commonly found in spas and swim spas manufactured or sold under the following names:\u003c\/p\u003e\n\u003cp\u003eSpa Industries, Signature, Cyclone, Leisurite, Designer Spas, Dominator, Bullfrog, H2O, H20, LA Spas, Spas Direct, SpaPro, WWDG, Sapphire, Alpine, Oasis, Vortex and many other brands and imported spa builds.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility varies by model and year.\u003c\/strong\u003e Identify the Balboa control-pack model and heater dimensions rather than relying only on the brand badge fitted to the spa cabinet.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Balboa Water Group\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater type:\u003c\/strong\u003e M7 twin-sensor flow-through heater assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e 3.0kW at 240V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent draw:\u003c\/strong\u003e approximately 12.5 amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElement alloy:\u003c\/strong\u003e Incoloy 800\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube length:\u003c\/strong\u003e 381mm (15\") flange to flange\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlumbing connection:\u003c\/strong\u003e 2\" heater unions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater tube outside diameter:\u003c\/strong\u003e approximately 57mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensors:\u003c\/strong\u003e 2 x genuine Balboa M7 sensors, one at each end of the tube, continuously monitoring temperature and water flow conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum flow for M7 sensing:\u003c\/strong\u003e approximately 23 GPM through the heater\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical connection:\u003c\/strong\u003e Plug-N-Click\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eWhat Is Included\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eFull Retrofit Kit\u003c\/strong\u003e, for older systems still using copper lugs:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Balboa M7 3.0kW 15\" heater assembly\u003c\/li\u003e\n\u003cli\u003e2 x genuine Balboa M7 temperature sensors\u003c\/li\u003e\n\u003cli\u003ePlug-N-Click heater lead\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-N-Click circuit-board adaptor\u003c\/strong\u003e that replaces the L-shaped copper lugs\u003c\/li\u003e\n\u003cli\u003eHeater union gaskets\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eHeater Only\u003c\/strong\u003e, for systems already fitted with a Plug-N-Click adaptor:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Balboa M7 3.0kW 15\" heater assembly\u003c\/li\u003e\n\u003cli\u003e2 x genuine Balboa M7 temperature sensors\u003c\/li\u003e\n\u003cli\u003ePlug-N-Click heater lead\u003c\/li\u003e\n\u003cli\u003eHeater union gaskets\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eBalboa Error Codes Related to the Heater and M7 Sensors\u003c\/h3\u003e\n\u003cp\u003eThe heater assembly, M7 sensors or water flow through the heater may be involved when the spa displays one of the following error codes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSnA \/ SA:\u003c\/strong\u003e the sensor connected to jack A is not operating and spa functions are disabled\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSnb \/ Sb:\u003c\/strong\u003e the sensor connected to jack B is not operating and spa functions are disabled\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSnS \/ Sn:\u003c\/strong\u003e the two M7 sensors are out of balance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHFL \/ HL:\u003c\/strong\u003e a substantial temperature difference has been detected between the two sensors, commonly due to inadequate water flow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLF:\u003c\/strong\u003e verified low flow. This is generally displayed after HFL occurs five times within 24 hours, after which heating is disabled\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOHH \/ HH:\u003c\/strong\u003e heater over-temperature. One sensor has detected excessive temperature at the heater tube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003edr \/ dry:\u003c\/strong\u003e dry heater or insufficient water flow has been detected\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA sensor fault does not automatically mean the complete heater assembly has failed. Replacement Balboa M7 sensors are available \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/balboa-temperature-sensors-m7-305mm\"\u003eseparately here\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eHFL, HL, LF, dr and dry codes are often caused by \u003cstrong\u003elow water level, a blocked suction, a dirty filter, a closed valve, air trapped in the plumbing or an unprimed circulation pump\u003c\/strong\u003e. Check these conditions before ordering a replacement heater.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eInstallation Requirements\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll electrical terminals must be correctly tightened.\u003c\/strong\u003e Loose electrical connections generate heat and can damage the heater terminals, loom or circuit board. Damage caused by loose terminals is not covered by warranty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDo not remove, shorten or modify the Plug-N-Click loom.\u003c\/strong\u003e A modified loom can cause faults and may void warranty coverage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplace the heater union gaskets whenever the heater tube is removed.\u003c\/strong\u003e New \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/balboa-heater-gasket\"\u003e74mm \"50mm\" heater union gaskets\u003c\/a\u003e are included with both options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDo not over-tighten the heater union nuts.\u003c\/strong\u003e The seal is made by the raised rib on the gasket. Tighten by hand, then approximately one-quarter turn further where required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional installation is recommended.\u003c\/strong\u003e Electrical work must be completed by an appropriately licensed electrician where required. A qualified spa technician should be used when the installer is not competent to identify the control pack, heater connection and plumbing requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eBalboa Part Numbers Replaced or Superseded\u003c\/h3\u003e\n\u003cp\u003eThis genuine Balboa 3.0kW M7 heater assembly replaces or is used as the current retrofit for many earlier heater part numbers, including:\u003c\/p\u003e\n\u003cp\u003e53475, 53883, 53885, 53996, 54282, 54297, 54305, 54346, 54406, 54476, 54479, 54501, 54503, 54699, 54705, 54850, 55085, 55087, 55496, 55565, 55595, 55626, 55866, 55890, 56002, 56004, 56012, 56220, 56282, 56290, 58061, 58107, 58118, 58118KIT1, 58215, 58279, 58300, 58301 and others.\u003c\/p\u003e\n\u003cp\u003ePart-number compatibility must still be confirmed against the heater length, power rating, plumbing size, sensor arrangement and control-pack configuration.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eRelated Balboa Heater Parts\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/balboa-3-0kw-m7-heater-titanium\"\u003eBalboa titanium 3.0kW M7 heater, part 55626\u003c\/a\u003e, for bore water, high sanitiser conditions or coastal installations\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/balboa-m7-2-0kw-spa-heater-element-tube-suits-gl-el-gs-vs-and-others\"\u003eBalboa 2.0kW M7 heater, part 58145\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/balboa-temperature-sensors-m7-305mm\"\u003eBalboa M7 temperature sensors\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/balboa-plug-n-click-heater-loom\"\u003eBalboa Plug-N-Click heater loom\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/balboa-sensor-mount-for-m7-heaters\"\u003eBalboa M7 sensor mount\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/balboa-heater-gasket\"\u003e74mm heater union gaskets\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/balboa-heater-split-nut-heater-union\"\u003eBalboa heater split nuts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/2-50mm-spa-heater-union-tailpiece-balboa-gecko-hydroquip-and-others\"\u003e2\" heater union tailpieces\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eWhy Use a Genuine Balboa M7 Heater?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eThis is a genuine Balboa heater assembly supplied by an authorised Balboa dealer and warranty agent.\u003c\/strong\u003e Some online listings use photographs of genuine Balboa heaters but supply an unbranded or non-genuine substitute.\u003c\/p\u003e\n\u003cp\u003eThe differences are functional, not merely cosmetic:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncoloy 800 element:\u003c\/strong\u003e genuine Balboa heaters use an Incoloy 800 element selected for resistance to corrosion and chloride stress-corrosion cracking in heated spa water. Lower-grade substitute alloys can pit, perforate and eventually create earth leakage that trips the RCD.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElement support:\u003c\/strong\u003e Balboa uses titanium stabilisers and a structural damming holder to centre and support the element inside the tube. An inadequately supported element can vibrate, work-harden and crack at stress points.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube and union weld quality:\u003c\/strong\u003e the weld between the heater tube and union flange is a critical potential leak point. Genuine Balboa tubes are consistently welded and pressure-checked. We see non-genuine copies begin weeping at the union within the first two seasons, which can then corrode the heater terminals and the circuit board beneath the heater.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine M7 sensors:\u003c\/strong\u003e M7 is a patented Balboa system. Its sensors are safety devices that help prevent the element from dry-firing. A dry fire can burn part of the element to molten metal. Even an air bubble contacting a sensor can locally overheat and weaken the element sheath, leading to failure weeks or months later. Correct sensor calibration is essential to detecting temperature imbalance, insufficient flow and dry-heater conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrect heater output:\u003c\/strong\u003e the genuine assembly is manufactured to provide the specified 3.0kW output. We frequently find copies sold as 3.0kW do not produce the claimed output. The spa may then struggle to reach or maintain its set temperature in cold conditions, with the pump often incorrectly blamed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty support:\u003c\/strong\u003e a non-genuine heater generally has no recognised manufacturer or authorised dealer warranty path. The initial saving is lost as soon as the part fails or damages associated equipment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorised Balboa dealer and warranty agent.\u003c\/strong\u003e Genuine parts, correct fitment advice and an established warranty process.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWill this replace my older Balboa heater with L-shaped copper lugs?\u003c\/strong\u003e\u003cbr\u003eYes. Select the \u003cstrong\u003eFull Retrofit Kit\u003c\/strong\u003e. It includes the Plug-N-Click adaptor that bolts to the circuit board in place of the old copper lugs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between Balboa 58107 and 58118?\u003c\/strong\u003e\u003cbr\u003eBoth are 3.0kW M7 heater assemblies. The 58118 is an earlier stud-and-nut version with longer sensor leads and is commonly associated with the older copper-lug connection. The 58107 \/ 58279 Plug-N-Click heater is the later replacement and can retrofit the older arrangement when used with the correct adaptor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need the Full Retrofit Kit or Heater Only?\u003c\/strong\u003e\u003cbr\u003eChoose the \u003cstrong\u003eFull Retrofit Kit\u003c\/strong\u003e when L-shaped copper lugs or straps currently connect the heater to the circuit board. Choose \u003cstrong\u003eHeater Only\u003c\/strong\u003e when a Plug-N-Click adaptor is already installed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMy spa displays HFL or LF. Do I need a new heater?\u003c\/strong\u003e\u003cbr\u003eNot necessarily. HFL and LF indicate inadequate water flow or an excessive temperature difference between the M7 sensors. Check the water level, filter, suction fittings, isolation valves, pump prime and trapped air before replacing the heater. The M7 system requires approximately 23 GPM through the heater tube.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need the titanium version?\u003c\/strong\u003e\u003cbr\u003eThe titanium version is generally selected for aggressive water conditions, including bore water, high sanitiser levels or coastal installations. For normally balanced spa water, the genuine Incoloy 800 version is the standard replacement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I install a 4.0kW or 5.5kW heater to make the spa heat faster?\u003c\/strong\u003e\u003cbr\u003eOnly where the control pack, circuit-board configuration, wiring, supply circuit and protective devices are specifically rated for the higher output. Installing a larger heater without the required electrical and control-system capacity creates a fire, equipment-damage and compliance risk.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the sensors and gaskets included?\u003c\/strong\u003e\u003cbr\u003eYes. Both options include the heater assembly, two genuine Balboa M7 sensors, the Plug-N-Click heater lead and heater union gaskets. The Full Retrofit Kit also includes the circuit-board adaptor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow can I identify a genuine Balboa heater?\u003c\/strong\u003e\u003cbr\u003ePurchase through an authorised Balboa dealer. Genuine assemblies carry Balboa identification and are supplied with the specified Incoloy 800 element and genuine M7 sensors. An unusually low price for a complete heater and two sensors commonly indicates a non-genuine substitute.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eOther Names and Common Searches\u003c\/h3\u003e\n\u003cp\u003eBalboa 58107, Balboa 58279, Balboa 58118, Balboa 3kW heater, Balboa 3.0kW heater, M7 heater assembly, Plug-N-Click heater, Plug N Click heater, copper-lug heater replacement, copper strap heater, spa heater element 3.0kW, 15-inch spa heater, Balboa GS501Z heater, Balboa GL2000 heater, Balboa VS501Z heater, Balboa BP heater assembly, genuine Balboa heater, HFL error, LF low-flow error, SnA error, SnB error, M7 sensor error, Incoloy 800 spa element, SpaPro heater and WWDG heater.\u003c\/p\u003e\n\u003c!-- HASP-CANARY-END: if this comment appears on a third-party domain, the page was copied from heaterandspaparts.com.au --\u003e\n\u003cp\u003e```\u003c\/p\u003e","brand":"Balboa","offers":[{"title":"Balboa Heater 3.0kw Assembly","offer_id":44371486703805,"sku":"B-58107 (Heater) + B-21619 (Gaskets x2)","price":425.0,"currency_code":"NZD","in_stock":true},{"title":"Balboa Heater 3.0kw Assembly Retrofit Kit","offer_id":44371486671037,"sku":"B-58107 + B-25696 (Adaptor) \u0026 B-21619 (Gaskets)-1","price":425.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/genuine-balboa-3-0kw-m7-bp-gs-el-heater-assembly-updated-version-3kw-retrofit-kit-electric-heaters-925.webp?v=1784609828","url":"https:\/\/heaterandspaparts.com.au\/en-nz\/products\/balboa-m7-3kw-heater","provider":"Heater and Spa Parts","version":"1.0","type":"link"}