What It Means
- Blockage detected on high pressure pipe during heating operation.
Lennox Split & Multi-Split
Lennox Error Code E534
Split & Multi-Split: Mini-split unit (outdoor)
Causes & actions from Lennox
How it shows
- mini outdoor inverter pcb: E534
- Mini-split outdoor main board: E534
1. Check if the service valve is open 2. C heck if there's any blockage on the refrigerant cycle (indoor unit/outdoor unit) 3. C heck the EEV connection and operation 4. C heck if the connecting wire and the pipe are OK 5. Check the compressor
Applicable models & manual sources
- 3WPD036S6S-1P
Blockage detected on high pressure pipe during heating operation.
Disclaimer: This information is for general reference. Code wording and instructions vary by model. Always follow the service manual for your exact unit.
What should you check next?
Continue in ACLogics with guided diagnosis for your equipment and symptoms.
