58A18 Transformer TestTo Test Transformer:1. Leave transformer connector J4 plugged into the circuit board.2. Set your Voltmeter to the 500 VAC range.3. Place Voltmeter probes directly into backside (wire side) of J4 connector and test as follows:North American 60 Hz2011-2013 J-315/J-325 (120 VAC or 240 VAC Powered*)Connector J4 VoltageBlack to White 120 VAC*Yellow to Yellow 12-14 VAC*North American 60 HzJ-210 (120 VAC or 240 VAC Powered*)Connector J4 VoltageBlack to White 120 VAC*Yellow to Yellow 12-14 VAC**Special instructions for all 120 VAC/240 VAC convertible power models.120 VAC Power Configuration: Convertible models include a factory installed 10 foot GFCI cordrated at 15A/120 VAC. To use cord the hot tub must be installed within 10 feet of a dedicated,grounded type electrical outlet. Do not use an extension cord of any type! If the hot tub is more than10 feet from an outlet, it must be hard wired to a single pole 15 amp GFCI breaker. Refer to pages50-53 for specific circuit board configurations.240 VAC Power Configuration: Convertible models can be hard wired for 4-wire 120 VAC/240VAC power. This configuration powers the heater with 240 VAC while powering both pumps andozone with 120 VAC. An external 30 or 40 amp dual pole GFCI breaker is required. Refer to pages50-53 for specific circuit board configurations.North American 60 HzJ-LX, J-LXL, (240 VAC Powered)2011-2013 J-335, J-345, J-355, J-365, J375 (240 VAC Powered)Connector J4 VoltageBlack to Red 240 VACYellow to Yellow 12-14 VACNorth American 60 HzJ-230, J-235, J-245, J-270, J-275, J-280 (240 VAC Powered)Connector J4 VoltageBlack to Red 240 VACYellow to Yellow 12-14 VAC230 VAC PoweredConnector J4 VoltageBlack to Black 230 VACYellow to Yellow 12-14 VACAll Export 50 Hz ModelsWBK YY120 VAC/240 VACConvertible Models*(Wire End View)RedBKY Y240 VAC Models(Wire End View)BlkBlk YYExport 50 Hz Models(Wire Side View)