Lennox
E223
LockoutLow PS failed OPEN
Low-fire pressure path did not make.
Walk E223 in Diagnose
4 plates — walk the one on the cabinet
First check
1 Prove inducer and the live code
Do not pull power — that clears the Lennox EL195NE active code. Write E223. Is the inducer spinning on this call? Silent inducer is not a pressure switch. Inducer actually on low? Low-fire hose only, 96% trap, PVC intake/exhaust.
Expect: Inducer port: Open to the collector, not packed with oxide. Two hoses, never teed.
If fail: 120 VAC missing → IFC / door switch / incoming power. Voltage + dead motor → inducer.
If pass: Inducer running + this code → trap, hose, switch, vent (step 2).
The rest of the walkthrough is Diagnose.
On the plates
- Inducer actually on low? Low-fire hose only, 96% trap, PVC intake/exhaust.
- Clean the inducer pressure port — known EL296. Dust packs the port and throws the whole PS family.
- Trap, PVC, low hose, inducer port (same known EL296 clog).
- Two hoses, never teed.