E15
Bryant
Remote Sensor Communication Fault
Thermostat shows E15 and indicates a remote sensor fault; remote room temperature or humidity readings are unavailable.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Open or shorted wiring to Bryant remote room sensor, Incorrect terminal connections for remote sensor, Failed Bryant remote sensor module, Too long or improper gauge wiring causing signal loss
How to Fix / Troubleshooting
Safety first: Turn off power to the indoor unit at the breaker before working on sensor wiring.
Steps to troubleshoot:
- 1. Locate remote sensor: Identify the Bryant remote room sensor location and its wiring path back to the thermostat or indoor control board.
- 2. Inspect wiring: Check for loose connections at both ends, damaged insulation, or splices. Tighten terminals and repair or replace damaged wire.
- 3. Confirm correct terminals: Ensure the sensor leads are connected to the designated remote sensor terminals as specified in the Bryant installation manual.
- 4. Test with short run: Temporarily connect a new short length of wire directly from the thermostat/board to the sensor. If E15 clears, the original cable is defective.
- 5. Replace sensor: If wiring is good and E15 persists, replace the Bryant remote sensor with an identical model.
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Repair Difficulty
Medium
3/5
Required Part
Bryant Remote Room Sensor
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