“OH” (Overheat) Error Condition
– Check that the spa water temperature is over 112°F. The system should be shut down in this state and will
re-start automatically when the water cools below 112°F.
– This indicates that the heater body is over 112°F. The system should be shut down in this state and will
re-start automatically when the water cools below 112°F.
“HL” (High Limit) Error Condition
– This indicates that either the heater or the spa has reached 118°F or higher. The system will not re-start
automatically. To re-start the system, the water temperature must be below 112°F and the heater key at the
topside control must be pressed.
– If “HL” stays on and cannot be disarmed, there has been high amperage drawn through the board –
20 Amps total max. (12 Amps cord connection) – replace board.
“FLO” Error Condition
– This indicates a flow problem where the pressure switch is not closing
– Check that filters are clean
– Check that water level is optimal (2/3 up the filter) opening
– Check for a flow obstruction or closed valve
– Check that topside program is set up correctly for pump speeds
(see Factory-Programming instruction)
“FLC” Error Condition
– This indicates that the pressure switch is stuck in the closed position.
– Turn the power off and check the pressure switch for continuity using an Ohms meter for resistance or other
buzzer style continuity tester.
Erratic operation at topside panel
– Check for proper connection
– Shut off system and restart
– Check cable connection at the topside control remove, clean reconnect
– Try new topside control
– Replace main board
No Heat
– Check the topside control for “HL” Error Condition. This indicates that the system has overheated. Make sure
the temperature has fallen to less than 112°F and press the
Heat (UP and Down key)
to reset.
– Check for flashing LED at topside control to indicate heat demand
– Check that filters are clean
– Check to see if the three dots (“. . .”) are blinking on the upper control. This indicates a flow problem. If
those “. . .” are off and there is still no heat, the element should be checked for continuity. If the element is
open, it needs to be replaced.
– If the pilot light still does not turn on, then the pressure switch may need to be adjusted. The pressure switch
is located on the heater union and has a small plastic screw on it. This plastic screw should be turned counter
clockwise to allow the heater to run on less water flow/pressure. This pressure switch is a protection switch
that is meant to turn the heater off if the pump fails to operate or if there is not enough pump pressure. A
test to see if the pressure switch has been adjusted correctly is to unplug the circulation pump and see if the
heater shuts off. It should operate again when the pump is plugged back in. The heater should not be
allowed to operate under static (gravitational) pressure when the pump is not on as it will cause an instant
overheat.
– If a flow switch is used it must be checked for continuity when closed.
– Replace the circuit board if the above remedies do not work.
26
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 ...
