Adjusting pressure switch
setting option #1 and #2 Tools required 5/6” Allen wrench (T25 TORX) or slot screwdriver
Option #1 – Lower pressure switch setting
If there is a heat call and the pump flow is greater than 6gpm and the Amber light does not come on, the
pressure switch may need adjustment to a lower pressure setting. Adjustments are made safely while the
system runs by removing the cap and slowly turning the pressure switch adjustment screw counter-clockwise
until the switch “closes” and the Amber light comes on (Ref diagram) Check for correct adjustment by
confirming the Amber light only comes on during a heat call and at no other time
Option #2 – Raise pressure switch setting
Remove the cap and slowly turn the adjustment screw clockwise until the “FLC” or other error code goes away.
Check for correct adjustment by confirming the Amber light only comes on during a heat call and no other time
Leaking heater
Confirm clamps are tight on barb connections. Nut must be screwed firmly onto tailpiece. Inspect for dirty or broken
gasket. The pressure switch can be further threaded in clockwise to achieve a leak free seal. If water is coming from the
electrical box, turn off breaker and remove bottom for inspection
GFCI breaker tripping when heater goes on
Inspect electrical plugs for moisture or corrosion. Leaking or wet heaters will need to dry before restarting. If the heater
is dry and GFCI breaker continues to trip, contact your heater provider for assistance with troubleshooting
What is a heat call?
When there is a demand for a higher water temperature, the term is making a “heat call”. Your spa owner’s manual will
explain the topside light or icon that will appear, confirming power is being supplied to the heater.
What are VDS lights?
VDS stands for the Visual Diagnostic System invented by HydroQuip to make troubleshooting fast and easy. The colored
light system will confirm heater operation or display trouble without having to use a multi-meter
What is a “closed” pressure switch?
A running circ. pumps will close the pressure switch’s electrical contact points together, allowing electrical power to pass
through the switch and complete a circuit. The correct terminology for a connected electrical circuit is “closed”
Note the pressure switch circuit should always be “open” when the circ. pump is off
IMPORTANT! The heater should never be allowed to operate without proper water flow. Heaters damaged from low
or no water flow causing a Wet or Dry Fire damage will not be covered under warranty
WARRANTY GUIDLINES
All warranty claims and product returns must be handled through your heater provider (no exceptions)
Data label contains information important to identification and warranty period. DO NOT REMOVE PRODUCT LABELS
Product returns determined to have shipping damaged, alterations, signs of chemical corrosion, wet/dry fire, abused,
out of the warranty or with a missing data label will not be considered for warranty
85-0124T
Rev.02_9/18
