Master Spas TWILIGHT series Owner's Manual page 69

SPA TROUBLE-SHOOTING GUIDE
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 the control panel for diagnostic messages. Refer to spa diagnostic message area in previ-
ous sections. Follow steps to alleviate message.
2.) Check water set temperature at control panel.
3.) Check for dirty filter. Clean if necessary.
4.) Check "heat mode" the spa is set in. Spa should be in standard/ready mode.
5.) Check the control panel for heater light indicator. If the light is on, the spa should be heating.
Wait a reasonable amount of time (approximately 1 hour) to see if the water temperature is
changing.
6.) Check to make sure that the pump is primed.
7.) Reset power to the spa at GFCI breaker.
8.) If spa is still not heating, contact your dealer for service.
DO NOT DIVE.
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 com-
ponent, power fluctuations, or improper wiring. It may be necessary to
contact an electrician if your dealer recommends doing so.
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