Dimension One Spas AQUATIC FITNESS SYSTEM 2003 Owner's Manual page 42

Symptom (Cont)
38
Aquatic Fitness System
2003 Owner's Manual
Problem
Temperature Probe Failure:
If the LED Digital Display shows 34°F or
134°F, you have an Open temperature
sensor. The heater is deactivated.
Corrective Action
Call the dealer for service.