Cal Spas

DR Cal Spas Hot Tub DR (dry) is a serious code — the heater detected it's running without water (dry … FLOW Cal Spas Hot Tub FLOW means the flow switch on the heater isn't seeing water flow — the system … HOT Cal Spas Hot Tub HOT is Cal Spas' early warning that water temperature is climbing above the set … ICE Cal Spas Hot Tub ICE on Cal Spas means freeze protection has activated — temperature is dropping … OH Cal Spas Hot Tub OH means water has overheated past the safety limit (typically 110°F / 43°C) and …