Master Spas SEATTLE Owner's Manual & Limited Warranty page 40

SPA TROUBLE SHOOTING GUIDE
WATER TEMPERATURE IS ABOVE SET TEMPERATURE (HEAT CREEP)
Because Master Spas hot tubs are well insulated and built to meet stringent energy standards, heat
creep can occur. This means that the measured temperature of the water in your spa is creeping
up higher than the set temperature on your control panel. Heat creep can occur as outdoor
temperatures become moderate to warm or when your filter cycle durations have been adjusted
above the default settings. To help manage heat creep:
1. Vent your cover. This means placing a folded cloth about ¾ inches (2 cm) thick under all four
corners of the cover before you lock the cover down.
2. Open your cover. Opening the cover at night will also quickly cool the water down if desired.
NOTE: Never leave a spa cover open and unsupervised.
3. Open all air controls. Temporarily leave the air controls open during cooler times of the day
or night. Set your filtration cycles to run during this time as well.
NOTE: If the heat creep issue has been resolved, close the air controls when not using the spa
to reduce energy and chemical maintenance.
4. Reduce the length of your filter cycles. The default duration is generally 4 hours of filtering
per day (either a duration of 2 hours that occurs twice per day or one 4-hour filter duration
based on time of day).
5. Visit your local Master Spas dealer for additional guidance. Heat creep can happen
on well-insulated hot tubs, and is related to the environment where the spa is installed and
equipment runtimes such as extended filter cycle durations (especially on systems using Therapy
Pump 1 low speed for filtering and heating). This is not indicative that there is a problem with
the spa.
PUMP(S) DO NOT OPERATE
1. Press the "Jets" button on your control panel.
If you hear the pumps trying to operate:
A. Check that all the slice valves are open.
B. Pump may need to be primed.
C. Check that the air controls are open.
Refer to Installation Instructions section. If you do not hear anything from the pump, contact
your Master Spas dealer or service organization.
POOR JET PERFORMANCE
1. Make sure pump is operating.
2. Check that the water level is adequate (up to minimum safe water level on sticker located near
filter).
3. Make sure the jets are open and the air controls are open.
Refer to Glossary of Spa Technology section.
DO NOT DIVE. DO NOT DIVE. 101 38