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Lennox Error Code E347
E347 means different things on different Lennox equipment. Choose the equipment you are working on.
Disclaimer: This information is for general reference. Code wording and instructions vary by model. Always refer to your unit's service manual.
What does it mean? Select your equipment
- Ducted Heating No 24 Volt output on Y1 to C with non-communicating outdoor unit.No 24 Volt output on Y1 of ”integrated control” with non communicating outdoor unit.->
- Split & Multi-Split Air handler (indoor) Relay Y1 failure. AHC relay activated, but not respond back .The Y1 relay on the air-handler has failed. Either the pilot relay contacts did not close or the relay coil did not energize.->
What should you check next?
Continue in ACLogics with guided diagnosis for your equipment and symptoms.