Service Information; General Information; Gfci And High Limit Thermostat; No-Fault Heater And Integrated Pressure Switch - HotSpring Vista Owner's Manual

ppm: The abbreviation of "parts per million", the standard measurement of chemical concentration in water. Identical to mg/l (milligrams
per liter).
Reagent: A chemical material in liquid, powder, or tablet form for use in chemical testing.
Sanitizer: Sanitizers are added and maintained at recommended residuals to protect bathers against pathogenic organisms which can
cause disease and infection in spa water.
Scale: Rough calcium-bearing deposits that can coat spa surfaces, heaters, plumbing lines, and clog filters. Generally, scaling is caused
by mineral content combined with high pH. Additionally, scale forms more readily at higher water temperatures.
Super-Chlorination: Also known as "shock treatment." Super-Chlorination is a process of adding significant doses of a quick dissolving
sanitizer ("dichlor" is recommended) to oxidize non-filterable organic waste and to remove chloramines and bromamines.
Total Alkalinity: The amount of bicarbonates, carbonates, and hydroxides present in spa water. Proper total alkalinity is important for
pH control. If the TA is too high, the pH is difficult to adjust. If the TA is too low, the pH will be difficult to hold at the proper level. The
desired range of TA in spa water is 40 to 120 ppm.

serVice infOrMatiOn

geNeRAl INfORMATION

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Your Hot Spring spa has been designed to provide years of trouble-free use. As with any appliance, problems may occasionally occur
that require the expertise of a qualified service person. Though such simple repairs as resetting a GFCI switch or breaker, resetting
a high limit thermostat or replacing a light bulb may not require a service call, they may indicate that a more serious condition exists.
These conditions may require an experienced service person. Before calling for service, please refer to the Troubleshooting Guide.
NOTe: Always retain your original sales receipt for future reference.

gfCI ANd HIgH lIMIT THeRMOSTAT

If your spa fails to operate at any time, first check the power supply to the spa.
Check each of the GFCI breakers in the subpanel. If a GFCI has tripped, reset it. If it will not reset, this may be an indication of a ground
fault (short circuit) within the electrical components. Contact an Authorized Service Technician for a complete diagnosis.
If upon checking the GFCI's you find that they have not tripped, check the house breaker panel and ensure the main breaker for the
electrical circuit supplying the spa has not tripped. If it has, this is an indication that the circuit was either overloaded or a ground fault
exists between the breaker panel and the spa receptacle or subpanel. Contact a qualified electrician.
If upon checking the main house breaker and spa GFCI's you find no failures, check the high limit thermostat. To check it, simply turn off
power to the spa for 30 seconds. This will automatically reset the high limit thermostat if it has tripped. If the spa energizes once you turn
the power back on, this indicates reduced water flow through the heating system. Tripping of the high limit thermostat is normally a result
of one or a combination of these problems. 1) clogged filter cartridge(s), 2) blockage within the system plumbing, 3) a non-functioning
heater circulation pump, 4) power was not disconnected from the spa before it was drained, 5) an air lock in the plumbing lines. (The
Power Indicator on the front of the spa's control panel will also be blinking if the high limit thermostat circuit has tripped.)
If the spa does not function after tripping and resetting the GFCI's or resetting the high limit thermostat, then the problem should
be referred to an Authorized Service Technician. Refer to the Heater section if the spa operates but does not heat, or refer to the
Troubleshooting Guide for additional service information.
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NO-fAUlT HeATeR ANd INTegRATed PReSSURe SWITCH
Watkins Manufacturing Corporation unconditionally warrants the No-Fault heater against any failure that would require replacement.
This warranty's duration is equal to the time period identified in the Component Warranty. This warranty defines unconditional as
warranty coverage without exception provided that the component has failed to operate properly within the spa's system. This means
that conditions that would normally invalidate the limited warranty, such as water chemistry damage, do not apply to the No-Fault heater.
It is important to note that the No-Fault heater is protected by both the heater high limit thermostat circuit and the integrated pressure
switch. The causes of heater high limit tripping are discussed in the previous section.
If the spa is not heating, the red and green lights are blinking, but the pump and light are operating, then the pressure switch may be
open. Opening of the pressure switch is normally a result of one or a combination of these problems: 1) a clogged filter cartridge, 2)
blockage within the system plumbing, 3) power was not disconnected to the spa before it was drained, or 4) an air lock in the plumbing
lines. Once the problem has been identified and corrected the pressure switch will close which will energize the heater.
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Service Information