Troubleshooting Guide
PHT 2004 S
(S models)
Temperature Readout is Wrong
– Remove temperature sensor/thermister from the tub location and submerge it directly into the water. This
will verify if the sensor has been installed where ambient air has affected it or if it is defective.
– Insulate the through wall dry well so the ambient air does not influence the temperature measurement.
Overheat
– If the water is too hot and the high limit has tripped, the water must be allowed to drop to less than 112°F
before it will reset. Reset by restarting the system.
– The circulation of the water may be too low, allowing the heater body to overheat. Be sure that all valves are
fully open to allow maximum water flow over the heater element.
The friction and radiant heat from the pump motor can cause an extremely high ambient temperature around
the spa and the equipment causing an overheat condition. If this condition is suspect, try running the spa with
the equipment door off to see if it still overheats.
Pump(s), Blower or light does not shut off
– Try new topside control
– Replace main board
Circulation pump does not work
– Check the fuse and power connections.
Light does not work
– Press Light key at top side
– Check bulb
– Check 12V out to light
Filter Cycle does not operate
– Adjust the temperature set point to be within 2°F of the actual water temperature. If the water temperature
creeps 2°F higher than the set temperature, the system will shut off to allow the water to cool. When the
water cools down to the desired set point, filtration will resume. Proper ventilation of the equipment will
minimize this interruption.
Ground Fault Interrupter Trips
– Check if it does it only when heat turns on, if so, check element by removing the power to the element
terminal and turn the heat on. If it only faults when the element is connected with power, the element has
a ground fault and must be replaced.
– This can be done with the pump(s), blower, ozonator or any other peripheral equipment as a process of
elimination to see where the fault may be.
– Be sure that the neutral on the GFCI has been wired properly in the main panel.
General
– All connections should be checked that they are secure.
– Always exercise general electrical common sense for safety.
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PA C I F I C H O T T U B S O W N E R ’ S M A N U A L
Summary of Contents for Pacific 2004
Page 54: ...55 PACIFIC HOT TUBS OWNER S MANUAL PHT 1000 PHT 2002 ...
Page 55: ...56 PACIFIC HOT TUBS OWNER S MANUAL PHT 1000 PHT 2002 ...
Page 56: ...57 PACIFIC HOT TUBS OWNER S MANUAL LXT Models equipped with Aqua Stealth ...
Page 57: ...58 PACIFIC HOT TUBS OWNER S MANUAL LXT Models ...
Page 58: ...59 PACIFIC HOT TUBS OWNER S MANUAL ULXT Model ...
