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SPA TROUBLESHOOTING
If your spa doesn’t seem to be working the way you believe it should, please review the “start-up” and “operation” instructions in this manual. If this doesn’t help you
correct the problem, follow the appropriate instructions below. If the problem still is not resolved, call your Caldera dealer.
Priming the pump:
Upon filling or refilling the spa, if a pump is operating and water is not flowing from any of its jets, the pump may not be
properly primed. To correct, refer to the Overhead View and perform the following procedures:
• Turn off power to the spa at the breaker and remove the equipment compartment door.
• Loosen the union on the top of the pump to allow the air to escape. When water is present, hand-tighten the union.
• Turn power back on, activate the pump and check to make sure union is tight enough to keep it from leaking.
Problem
Probable causes
Solutions
Entire spa is inoperative
Jets weak or surging
Light inoperative
Flashing “TEMP” on
control panel
Four flashing lines on the
main control panel
Spa not heating properly
Pump motor will not function
Noisy pump or motor
Pump motor runs, but low or
no water/jet pressure
Diverter valves are difficult
to turn
• Power failure
• GFCI tripped
• Heater high limited thermostat tripped
• Spa Lock activated
• Spa water level too low
• Filters clogged
• Air valves are closed
• Spa lock activated
• Light assembly is faulty
• Dirty Filter
• Low water level
• Pressure switch problem
• Temperature sensor problem
• Heater high limit thermostat tripped
• Temperature set too low
• Spa cover improperly positioned
• Dirty Filter
• Summer Timer On
• Motor overload condition
• Control switch failure if jet symbol does not
come on.
• Low water level
• Air control valve closed or blocked
• Low water level
• Dirty filter cartridge
• Jet blocked
• Clogged suction or skimmer basket
• Sand or grit inside valves
• Check power source
• Reset GFCI; call for service if it will not reset.
• Disconnect power for at least thirty seconds to reset heater high limit. If it
will not reset, check for clogged filters. If tripping continues, call for service.
• Deactivate spa lock
• Add water
• Clean filter
• Open air valves
• Deactivate spa lock
• Call for service
• Clean filter
• See Start Up Section In Owner’s Manual
• Disconnect power for at least thirty seconds. If flashing continues after
power up, call for service
• Disconnect power for at least thirty seconds to reset heater high limit. If it
will not reset, check for clogged filter. If tripping continues, call for service
• Set control panel to a higher temperature.
• Align spa cover
• Clean filter
• Turn summer timer mode to off position
• Let cool for 1 hour. Motor overload will reset automatically. If Problem
persists, contact your Caldera dealer
• Disconnect spa and contact your Caldera dealer
• Add water to normal level (1 inch above highest jet)
• Open or clean air valve
• Add water to normal level (1 inch above highest jet)
• Clean filter cartridge
• Remove jet face eyeball and clean orifice
• Clean suction cover or skimmer basket
• Clean and lubricate valve per diverter valve maintenance instructions
GENERAL OPERATION TROUBLESHOOTING GUIDE