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Emily Lopez MDSep 13, 2025
What does E3 mean on my Honeywell TP70?
- EErica HolmesSep 13, 2025
If E3 appears, check if the ambient temperature is below 89.6°F (32°C). If it's above 89.6°F (32°C), place the unit below 86°F (30°C) for 2 hours before running it again. If E3 reappears after 2 hours, please contact the service center.