Lennox
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⛔ Do Not Use
Lennox - Error Code 245
Lennox Mini-Split error code 245: Rollout switch open.
Is it safe?
⛔ No — stop using
Do NOT operate — potential gas or CO hazard. Ventilate the area and call a technician immediately.
Can I fix it?
Technician Required
Repair cost
Pro: $150–$600
⏱ 1–3 hours (pro)
What Does Error Code 245 Mean?
Lennox Mini-Split error code 245: Rollout switch open.
Part that typically fails: Gas valve / igniter / heat exchanger
Do NOT operate — potential gas or CO hazard. Ventilate the area and call a technician immediately.
Symptoms You May Notice
- ⚠️ Error code on display
- ⚠️ System not cooling or heating
- ⚠️ Unit shutting down unexpectedly
What the Technician Will Do
🔧 Professional repair required. Do not attempt DIY — this repair requires specialized tools or certification.
- 1 Check your owner's manual for model-specific guidance on error code reset procedures
- 2 If the error persists after reset and basic checks, contact a qualified technician
⚡ Quick tip: Always try a full power reset first — turn the unit off at the breaker, wait 30 seconds, restore power.
Frequently Asked Questions
What does Lennox Mini-Split error code 245 mean? ▼
Error code 245 on a Lennox ductless mini-split system indicates: Rollout switch open. The unit has detected this condition and has limited or stopped operation to prevent further damage.
How do I fix Lennox Mini-Split error code 245? ▼
Start by powering the unit off for 30 seconds and restarting. If error 245 returns, the underlying cause (rollout switch open) needs to be addressed. Check wiring connections and filters first before replacing components.
Is Lennox error code 245 serious? ▼
It depends on the root cause. Some 245 errors resolve with a reset. Others indicate a failed component that requires professional repair. Don't continue operating with this error — it can lead to further damage.