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8.5 House Breaker Trips
The hot tub’s current draw will vary depending on how it’s circuit board is jumpered. Jumper options
determine whether multiple functions can operate together.
If the house breaker trips, check the hot tub’s current draw. If the jumpers are properly set and the
current draw is within expected limits, the house breaker or wiring may be defective and need to be
replaced or repaired. The hot tub’s current draw at the breaker represents the sum of all enabled com-
ponents. Refer to appendix page 47.
If the hot tub’s current draw is high, individual component current measurements must be made to de-
termine which component is pulling excessive current. Refer to appendix page 47. Repair or replace
the component which is drawing excessive current.
8.5A GFCI Tripping
If the GFCI trips, try disconnecting the heater and the pumps from the circuit board one at a time to nd
which component may be causing the GFCI to trip.
When a customer complains of intermittent GFCI tripping, these questions need to be answered before
we start replacing components on the hot tub. 90% of a GFCI’s tripping problems are the direct result
of improper wiring or installation.
1.
2.
3.
4.
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7.
Has the GFCI always tripped or has it just recently started tripping?
• Has the hot tub just been installed?
• Electricians are not as smart as they think they are and the owner’s cousin’s nephew who’s a
painter really isn’t a licensed electrician.
• New deliveries cause 90% of all GFCI tripping problems.
• Know what to look for when you approach this problem. Refer to section A9-A11 (pages 50-52).
How was the hot tub delivered?
• Check for visible damage to all hot tub components.
What Brand of GFCI was installed?
• Some brands are known to be more sensitive than others which can cause nuisance tripping.
When does it trip? At the start of a ltration cycle, etc., be speci c.
• The customer needs to provide you with this information. Have them takes notes on when the hot
tub trips. How often does it trip? Be speci c. Intermittent tripping of the GFCI is very hard to pinpoint
if you can’t get speci c information.
What size is the GFCI? 30, 50 or 60 Amp?
What size is the wiring? 8-10 gauge for 30 Amp, 8-6 gauge for 50 Amp, 6 gauge for 60 Amp. All wir-
ing must be done to Local and NEC code.
What kind of wire are they using, copper or aluminum?
• Aluminum wire is not recommended.