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Nothing Works (Panel Dead)
1. All Models - Check for proper power to the hot tub on the main TB1 terminal block (page 43) as follows:
• 120V Convertible North American Models: 120 VAC ±10% (3-wire).
• 240V North American Models: 240 VAC ± 10%.
2. Check for power at transformer secondary. Refer to appendix page 58. If power exists on transformer
secondary, plug in spare control panel. Still nothing? Replace board.
3. If no power exists at transformer secondary, check for voltage at transformer primary. Refer to appendix
page 58. If voltage exists on the primary but is missing on the secondary, replace transformer.
4. No power at the transformer primary indicates either an open 1.25 Amp fuse, 20/30 Amp main fuse, or a
loose or disconnected wire. If voltage exists on the primary but is missing on the secondary, replace trans-
former. See Section A5 (page 48) for specic fuse details.
8.4 Hot Tub Doesn’t Come On for Filter Cycle
Turn power to hot tub off and on to restart lter cycle program. Does lter cycle start approximately two minutes
after power is applied?
• If yes: the hot tub is functioning properly. Refer to Sections 4.3-4.7 (page 7) for lter cycle setup details.
Take time to explain lter cycle selection and operation to your customer. Make sure your customer under-
stands lter cycles are selectable, not programmable.
• If no: Select appropriate lter cycle mode within two minutes after applying power. Refer to Sections 4.3-
4.7 (page 7). If lter cycle starts approximately two minutes after setting, no corrective action is re-
quired. If lter cycle does not start two minutes after setting, replace circuit board.
8.5 House Breaker Trips
The hot tubs current draw will vary depending on how the circuit board is jumpered. Jumper options determine
whether multiple functions can operate together.
If the house breaker trips, check the hot tubs current draw. If jumpers are properly set and current draw is
within expected limits, the house breaker or wiring is defective and must be repaired/replaced. The hot tubs
current draw at the breaker represents the sum of all enabled devices. Refer to appendix page 46.
If the hot tub’s current draw is high, individual device current measurements must be made to determine which
device is pulling excessive current. Refer to appendix page 46. Repair or replace the device which is draw-
ing excessive current.
If the GFCI trips, try removing the heater, pump, ozonator (if installed), stereo power supply and circulation
pump or pump 2 wires from the circuit board one at a time to nd which device may be causing the GFCI to
trip. For chronic GFCI tripping, call Technical Support.
North American 60Hz Installations:
As of January 1, 1994 the National Electric Code (NEC) requires a Ground Fault Circuit In-
terrupter on all hot tub installations in the U.S. A GFCI must be wired correctly or it will trip.
Make sure the electrician has wired the GFCI according to the diagram on pages 54.
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