Applicable Systems
RTAC 200
Symptoms
The suction temperature sensor reports a fault. The controller cannot monitor suction temperature.
Possible Causes
- Suction temperature sensor element failure
- Sensor wiring loose or corroded
Troubleshooting Steps
- Step 1: Check the sensor connection and resistance
Connection is loose or resistance is abnormal - Step 2: Replace the suction temperature sensor
New sensor reads correctly
How to Reset
To reset: Replace the faulty sensor and power-cycle the controller.
Source: Trane HVAC Service Manual, Trane Inc.
Category: HVAC Residential