There are lists of problem signals and errors which may be seen in case of any breakdown of your Haier furnace. Haier error codes give you the idea of what is going wrong and you can solve the problem then.
The codes are LED signals with certain number of flashes in a row. They are grouped and explained respectively. For each number of flashes there is a detailed description of problem and an instruction of what to check for. So, these lists give you a solution for any situation with your furnace. Do not perform any repair works if you are not a qualified technician. In case of complicated situation call for specialist help.
| Status LED | DESCRIPTION |
|---|---|
| Heartbeat | Control has 24 VAC power |
| 2 Flashes | Pressure switch did not open, check for obstructed pressure tubing |
| 3 Flashes | Pressure switch did not close, or re-opened- Check for: excessive wind, proper vent size, defective inducer motor, low inducer voltage, defective pressure switch, inadequate combustion air supply, disconnected or obstructed pressure tubing, low inlet gas pressure, restricted vent, condensate clogged |
| 4 Flashes | Limit circuit fault-a limit or flame rollout is open. Check for: restricted vent, proper vent sizing, loose blower wheel, excessive wind, dirty filter, defective blower motor, defective switch or connections, inadequate combustion air supply |
| 5 Flashes | Abnormal flame proving signal-Flame is proved while gas valve is de-energized. Check for: leaky gas valve, stuck open qas valve |
| 6 Flashes | Failure to ignite or flame sense lost while running. Check for: Flame sensor must not be grounded, low inlet gas pressure, oxide buildup on flame sensor, |
| Manual valve shut off, proper flame sense microamps, gas valve defective or gas valve turned off, defective hot surface iqniter, control qround continuity, | |
| Inadequate flame carryover or rough ignition, green/yellow wire MUST be connected to furnace sheet metal. | |
| 7 Flashes | Limit circuit lockout- Lockout occurs if the limit or flame rollout is open longer than 3 minutes. Control will auto reset after 3 hours. Refer to #4 |
| 8 Flashes | Gas heating lockout-Control will NOT auto reset. Check for: mis-wired gas valve, defective control valve |
| 10 Flashes | Polarity-Line voltage, polarity reversed. If twinned, refer to twinning kit instructions. |
| Problem | Solution |
|---|---|
| Rapid LED: | Incorrect 24 Volt Phasing. |
| 1 Flash: | Flame with Gas Off. |
| 2 Flash: | Pressure Switch Stuck Closed. |
| 3 Flash: | Pressure Switch Stuck Open. |
| 4 Flash: | High Limit Switch Open. |
| 5 Flash: | Rollout Switch Open. |
| 6 Flash: | Lockout Caused By Pressure Switch. |
| 7 Flash: | Lockout Caused By No Ignition. |
| 8 Flash: | Lockout Caused By Loss Of Flame. |
| 9 Flash: | 115 Volts AC Power Leads Reversed. |
| 11 Flash: | Broken Rollout Wire. |