E5 Error Code on Your i12?
TS: i12 Getting E5 error code
Vanessa
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Josey ClownHelpful. Had a bad storm last night and was showing an E5 code. I suspected rain may have blown into the vent. I shut off everything, disconnected the vent and checked the butterfly valve in the vent pipe, it seemed fine. I spun the exhaust fan blades down inside with my finger and felt moisture. I completely removed the water heater, flipped it upside down while spinning the exhaust fan and drained a small puddle of water from inside. I let it sit upside down a few minutes, reconnected everything and it immediately started working again. I'll add an exterior rain shield as a future precaution.
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The E5 error code refers to the Pressure Switch which can be caused by a motor problem or the voltage of the power supply is too low.
If you're sure that the power source is within the required amount and the same issue persists, try to reset your heater by:
If you're still having problems with the E5?
1. The first thing to check is the backflow preventer located inside the elbow vent pipe (included on the standard horizontal vent kit) connected to the top of the heater. Make sure when you put it back that the butterfly valve inside the elbow freely moves when the fan blows the hot air out of the vent. To test, remove the top vent and run the unit without it and see if the issue goes away.
2. See if the fan comes on. If not, please check the connection to the computer board.
3. Check the Air pressure or Vacuum Switch.
If after checking these things and you're still having problems, please reach out to support@eccotemp.com with pictures of your installation and proof of purchase or serial number.
Our team is always happy to help!