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SPA TROUBLESHOOTING
25
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.
GENERAL OPERATION TROUBLESHOOTING GUIDE
Entire spa is inoperative
For high limit,display shows
“____
____”
Spa does not heat; jets and
light operate
(Display shows
“____ or _._._._
____ _._._._”
Jets weak or surging
(Display shows “_._._._
_._._._”)
Light inoperative
• Power failure / not plugged in
• GFCI tripped
• Heater high-limit thermostat tripped
• Pressure switch tripped
• Pressure switch senses flow through heater
even though the jet pump is off
• Spa water level too low
• Filters clogged / suction screens clogged
• Jet nozzles closed / Air valve closed
• Bad connection
• Heater high limit thermostat tripped
• System Controls
Display shows “- - - -
- - - -”
(Entire spa inoperative)
• 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 filter. If tripping continues, call for service.
• Check for clogged filter. The pressure switch will reset when the flow of
water through the heater has been restored. Call for service if the pressure
switch trips frequently.
• Contact an Authorized Service Technician
• Add water
• Clean filters / Clean suction screens
• Open jet nozzles / Open air valve
• Contact an Authorized Service Technician
• Disconnect power to the spa for at least thirty seconds to reset the heater
high-limit. If tripping continues, clean the filter, then if tripping still occurs,
call for service.
• Contact an Authorized Service Technician
Problem Probable causes Solutions
Water temperature
significantly different from
display temperature.
Display shows flashing
“READY” icon
Priming the pump(s): 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, perform the following procedures:
• Turn off power to the spa at the breaker and remove the equipment compartment door (as seen on page 24).
• Loosen the union on the top of the pump(s) (as seen on page 24) to allow the air to escape, the hand-tighten the union(s).
• Turn power back on, activate the pump and check to make sure union is tight enough to keep it from leaking. Re-install pump and equipment
doors.