Safe visible checks
- Thermostat display and settings
- Filter condition and return-air path
- Visible outdoor-unit obstruction
- Photos of the code, unit, and nameplate
Product troubleshooting
Use this table to identify what the visible code may mean and what information to share when scheduling service. Keep checks simple and visible; do not open electrical, refrigerant, gas, or sealed equipment compartments.
Error-code table
| Code | Meaning | System area | Safe first step | Action |
|---|---|---|---|---|
| E01 | Internal IMAHC error | Integrated modular air-handler control | Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. | View details |
| E61 | Voltage reversed polarity | Low-voltage and line-voltage wiring | Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. | View details |
| E62 | Bad grounding | Grounding and electrical safety | Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. | View details |
| E12 | Open fuse | Air-handler control fuse | Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. | View details |
| E13 | Blower HP or OEM ID issue | Blower configuration | Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. | View details |
| E14 | No personality module and local copy bad | Personality module and unit data | Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. | View details |
| E15 | Unit data file corrupt | Personality module and local unit data | Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. | View details |
| E17 | Blower motor no communication response | Blower motor communication | Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. | View details |
| E18 | Blower communication failure on the control | Blower control communication | Record the flash pattern, avoid repeated reset attempts, and schedule GreenFlow service. | View details |
No matching error codes found.
Safety note
These pages are meant to help document the issue, not replace diagnosis. GreenFlow should handle pressure-switch, electrical, refrigerant, lockout, recurring, and warranty-related conditions.
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