Takagi Error Code 720: Remote Control Error
How to Fix Takagi Code 720
- Step 1: Check the remote control's batteries (if applicable) and replace them if needed.
- Step 2: Inspect the wiring connections at the remote control and the main unit (if easily accessible without removing any panels) for any obvious signs of damage or loose connections. Gently try pushing the wires into their terminals.
- Step 3: If the problem persists, contact a qualified HVAC technician to diagnose and repair the issue.
What Does Takagi Error Code 720 Mean?
The Takagi error code 720 indicates a problem with the communication between the main control board in your tankless water heater and any connected remote controls (if you have one installed). The remote control allows you to adjust the water temperature from a different location, like a bathroom. This error means the main unit isn't 'hearing' from the remote, or vice versa. The unit will shut down to prevent unexpected temperature changes or operation without proper control. This error can stem from a simple wiring issue, a faulty remote control, or a more serious problem with the main control board in the tankless unit itself. Because the unit locks out, you won't have hot water until the issue is resolved. Troubleshooting requires some electrical testing, so if you aren't comfortable with that, it's best to call a qualified technician.
Common Causes of Takagi Code 720
- Loose or corroded wiring connections between the remote control and the main unit.
- Faulty remote control unit.
- Damaged or improperly shielded remote control wiring.
- Defective main control board in the tankless water heater.
Applicable Takagi Models
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