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GENERAL OPERATION TROUBLESHOOTING GUIDE
Problem
Probable causes
Solutions
Entire spa is inoperative
• Power failure
• GFCI tripped
• Heater high-limit thermostat tripped
• Spa lock activated
• 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
Spa does not heat; jets and light
operate (Orange logo "Ready", and
Gray logo "Power" indicators are
blinking)
• Integrated pressure switch open
• Circulation pump thermal cut-off tripped
• Check for clogged filters. Integrated pressure switch will reset when the flow of water
through the heater has been restored. Call for service if the heater trips frequently.
• Check for clogged filters or air locks in plumbing. Disconnect power to the spa, allow
circulation pump to cool. Circulation pump thermal cut-off will reset when pump has
cooled and power is reapplied. Call for service if circulation pump thermal cut-off
trips frequently.
Jets weak or surging
• Spa water level too low
• Filters clogged
• Air valves are closed
• Add water
• Clean filters
• Open air valves
Lights inoperative
• Spa lock activated
• Light wiring or assembly is faulty
• Deactivate spa lock
• Call for service, replace light assembly
Spa not heating properly
•
Temperature set too low
•
Spa cover improperly positioned
•
Dirty Filter
•
Summer Timer On
•
Set control panel to a higher temperature.
•
Align spa cover
•
Clean filter
•
Turn summer timer mode to off position
Gray Logo "Power" indicator blinking
• Heater high-limit thermostat tripped
• 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.
Orange Logo "Ready" indicator
blinking
• Temperature sensor problem
• Disconnect power for at least thirty seconds. If blinking continues, call for service.
Pump motor will not function
•
Motor overload condition
•
Control switch failure if jet symbol does not
come on
•
Let cool for one hour. Motor overload will reset automatically. If problem persists,
contact your
CALDERA
dealer
•
Disconnect spa and contact your
CALDERA
dealer
Noisy pump or motor
•
Low water level
•
Add water to normal level (2.5 cm above highest jet)
Pump motor runs, but low or no water/
jet pressure
•
Air control valve closed or blocked
•
Low water level
•
Dirty filter cartridge
•
Jet blocked
•
Clogged suction or skimmer basket
•
Open or clean air valve
•
Add water to normal level (2.5 cm above highest jet)
•
Clean filter cartridge
•
Remove jet face eyeball and clean orifice
•
Clean suction cover or skimmer basket
Diverter valves are difficult to turn
• Sand or grit inside valves
• Clean and lubricate valve per diverter valve maintenance instructions.
After filling or refilling the spa: a jet
pump is operating, but water is not
flowing from any of its jets
•
Pump is not properly primed
•
Turn off power to the spa at the breaker and remove the equipment compartment
door.
•
Loosen the union on the top of the pump(s) to allow the air to escape, and then
hand-tighten the union(s).
•
Turn power back on, activate the pump, and check to make sure the union is tight
enough to keep it from leaking. Replace the equipment doors.
OR: Remove and reinstall the
FROG
cap.
Service Information