Spa Troubleshooting Guide - Legacy Whirlpool LW 524 Owner's Manual

SPA TROUBLE SHOOTING GUIDE
Note: For wiring outside of U.S. and Canada, GFCI may be referred to as a RCD (residual current
device). Be sure all local electrical codes are followed.
SPA NOT HEATING
If the spas heater has failed, the majority of the time it will trip the GFCI breaker. If the spa is not
heating and has not tripped the breaker, please follow these steps:
1. Check water set temperature at control panel to make sure it is set to desired temperature,
above the current water temperature.
2. Check the "heat mode" that the spa is set in. The spa should be set in the standard mode or
ready mode depending on the model.
3. Check the control panel for heat indicator. If heat indication is on, wait a reasonable amount of
time (at least 1 hour) to see if the water temperature is rising.
4. If heat indicator does not remain on, the system should be displaying a message indicating why
it can't heat. Check the control panel for diagnostic messages. Refer to Spa Control Section
titled System Related Messages. Follow steps to alleviate message.
5. Check the control panel for light indicator. Wait a reasonable amount of time (at least 1 hour)
to see if the water temperature is rising.
6. Reset power to the spa at GFCI breaker.
7. If spa is still not heating, contact your local Master Spas dealer for service.
GFCI IS TRIPPING
A ground fault circuit interrupter (GFCI) is required by the National Electrical Code for your
protection. The tripping of the GFCI may be caused by a component on the spa or by an electrical
problem. Electrical problems include but are not limited to, a faulty GFCI breaker, spa component,
power fluctuations, and/or improper wiring. If this is a new electrical service and GFCI installation,
an instantly tripping GFCI may likely be caused by improper wiring of the load neutral from the
GFCI to the spa. It may be necessary to contact an electrician if your Master Spas dealer recom-
mends doing so.
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