E17
Bryant
High-Temperature / Limit Switch Lockout (Reported to Thermostat)
Thermostat shows E17 and indicates a high-temperature or safety lockout reported from the indoor unit.
Advertisements
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.
Advertisements
Possible Causes
Tripped high-limit switch in Bryant gas furnace, Blocked supply or return airflow, Dirty evaporator coil causing overheating, Failed indoor blower motor or relay
How to Fix / Troubleshooting
Safety first: Turn off power and gas (if applicable) to the furnace at the service switch, gas shutoff, and breaker. Do not bypass safety switches.
Steps to troubleshoot:
- 1. Check air filter and vents: Replace a dirty filter and open all supply and return vents.
- 2. Inspect furnace cabinet: A technician should remove the blower door and inspect for blocked airflow, dirty evaporator coil, or blower issues.
- 3. Reset lockout: After correcting airflow issues, restore power and allow the furnace to reset. Some Bryant furnaces may require a manual reset or power cycle.
- 4. Professional service: If E17 recurs, a qualified technician must test the high-limit switch, blower motor, and gas furnace operation to ensure safe function.
Advertisements
Repair Difficulty
Professional Required
5/5
Required Part
Bryant Furnace High-Limit Switch
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements