York Error Code and Repair Guides - 23 Guides
York HVAC troubleshooting hub with 23 guides for fault codes, alarms, symptoms, parts checks, and repair decisions.
Use this page when your York furnace, air conditioner, heat pump, or mini split is flashing a fault. Start with the exact code, then open the fix guide to diagnose airflow, ignition, sensor, pressure switch, board, or communication problems before you order parts or book a service call.
Tip: search the exact brand, model, and code together, for example "York error code 13" or "York pressure switch fault".
Start With These York Guides
York FAQ
Where should I start with York error codes?
Start with the exact York model and displayed code or alarm, then open the closest guide on this page. Match the symptom, recent service history, and any secondary codes before resetting the equipment or ordering parts.
Do York fault codes always mean a bad control board?
No. Many York codes point to airflow, water flow, sensors, wiring, power quality, filters, switches, or operating conditions. Check the simple causes in the guide before replacing an expensive board.
When should I stop troubleshooting a York fault myself?
York HVAC equipment can hide unsafe ignition, refrigerant, high-voltage, or combustion problems behind a simple blinking code. Stop and use the repair checklist or compare service options when the guide points to gas, refrigerant, line voltage, sealed-system work, food-safety temperatures, or repeated faults after a reset.
| Error Code | What It Means | Guide |
|---|---|---|
| York Chiller Fault Codes | YVAA, YVFA, YWHA, OptiView | Fix → |
| York Rooftop Unit Error Codes | Predator and ZF RTU | Fix → |
| York Furnace 6 Flashes Error Code | Pressure Switch Fault Fix | Fix → |
| York YSC Rooftop Unit Error Codes Guide | Complete York YSC series rooftop unit error codes. Covers all E-codes, P-codes, and flash codes with technician-level diagnostic steps. | Fix → |
| York Affinity Series Packaged Unit Error Codes: Complete Guide | York Affinity packaged unit error codes and fault diagnostics. Flash codes, communicating system faults, and technician-level troubleshooting. | Fix → |
| York Furnace Error Codes | Complete Guide | Fix → |
| York 2 Flashes Error Code | Causes & Fix | Fix → |
| York 3 Flashes Error Code | Causes & Fix | Fix → |
| York 4 Flashes Error Code | Open Limit Device Fix | Fix → |
| York 5 Flashes Error Code | Causes & Fix | Fix → |
| York 7 Flashes Error Code | Ignition Lockout Fix | Fix → |
| York 8 Flashes Error Code | Causes & Fix | Fix → |
| York Furnace E2 Pressure Switch Fault | York E2 furnace guide for pressure switch faults, blocked condensate drains, cracked hoses, inducer problems, vent restrictions, and switch tests. | Fix → |
| York Furnace E4 Error Code | Ignition Failure | Fix → |
| York Furnace Error Code E2 | Causes & Fix | Fix → |
| York Furnace Error Code E3 | Pressure Switch Fix | Fix → |
| York Furnace Error Code E5 | High Limit Tripped | Fix → |
| York Mini Split Error Code E1 | Causes & Fix | Fix → |
| York TG9 Furnace Error Codes | Fault Code Guide | Fix → |
| York YCD Packaged Unit Error Codes | York YCD packaged-unit guide for pressure trips, ignition lockouts, fan faults, economizer issues, sensors, and control-board checks. | Fix → |
| York YG2C Furnace Error Codes | Flash Code Diagnostic Guide | Fix → |
| Furnace Blinking 3 Times | Cross-Brand Comparison Guide | Fix → |
| How to Reset a Furnace After Lockout | Per-Brand Reset Procedures | Fix → |