Jacuzzi LED Series Troubleshooting

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A1 Checking Voltage to Hot Tub
Correct supply voltage wiring to the hot tub is essential for safe/proper operation. The rst step in
troubleshooting a new installation should be to take voltage readings at the terminal block TB1. Do
not trust wire colors. Electricians make mistakes and electrons are color-blind. A low line voltage
or incorrectly wired hot tub will result in either of the following symptoms: A) Strange or intermittent
symptoms, B) Displays with indications that simply cannot be correct
Many of the most perplexing problems in the past have been wiring errors and voltage drop prob-
lems. Human safety depends on proper hot tub grounding. It is essential that the voltage readings
described below are as indicated. The ground connection must be heavy duty wiring.
• J-315, J-325 North American 60 Hz are convertible for either 120 VAC 3-wire operation or 240
VAC 4-wire operation. The 4-wire power conguration powers the heater with 240 VAC for in-
creased performance while powering all other components with 120 VAC.
• All other models are North American 60 Hz are exclusively powered by 240 VAC.
• All Models Export 50 Hz are exclusively powered by 230 VAC ±10%, see Figure C below.
Verify All Convertible Models Power Connections as Follows:
North American Models (120 VAC/60 Hz, Fig. A)
• Hot to Neutral: Measure across test points 1 and 2 with voltmeter for 120 VAC.
• Hot to Ground Test: Measure across test points 2 to 23 for 120 VAC.
North American Models (240 VAC/60 Hz, Fig. B)
• Hot to Neutral: Measure across test points 1 and 2 with voltmeter for 120 VAC; then across test
points 1 and 24 for 120 VAC.
• Hot to Ground: Measure across test points 2 and 23 for 120 VAC; then across test points 24 and
23 for 120 VAC.
• Hot to Hot: Measure across test points 2 and 24 for 240 VAC.
DANGER: Electrical Shock Hazard Exists!
High Voltage Present on Circuit Board. Use
Extreme Caution while Servicing Circuit Board.
BLUE
BLUE
BROWN
BROWN
GRN
1
2
GRN
WHT
WHT
BLK
BLK
BLK
RED
1
2
3
North American (60 Hz)
120 VAC 3-Wire
J-315, J-325
GRN
WHT WHT
BLK
BLK
BLK
RED
RED
1
2
3
North American (60 Hz)
240 VAC 4-Wire
J-315, J-325
Fig. C
TB1 TB1
TB1
1
2
24
23
24
23
23
1
2
1
2
Export (50 Hz)
230 VAC 3-Wire
J-315, J-325
to Circuit
Board
to Circuit
Board
to Circuit
Board
Power In Power In
Power In
Fig. BFig. A

Jacuzzi LED Series Specifications

General

Brand	Jacuzzi
Model	LED Series
Category	Hot Tub
Language	English