Takagi Error Code 200: Overheating
How to Fix Takagi Code 200
- Step 1: Check that all hot water taps are fully closed. A small drip can trigger the heater unnecessarily.
- Step 2: Ensure the water supply valve to the unit is fully open.
- Step 3: Press the reset button on the unit. If the error reappears shortly after, call a qualified technician.
What Does Takagi Error Code 200 Mean?
The Takagi error code 200 indicates the unit's high limit switch has tripped, meaning the water temperature exceeded its maximum safety threshold. This shuts down the burner to prevent damage and potential scalding. Several things can cause this, but it usually points to a problem with water flow, burner operation, or a faulty sensor. The unit is designed to protect itself, so it's important to figure out why it's overheating instead of repeatedly resetting it. When this happens, the heater stops producing hot water, and you'll see the 200 error code displayed. The unit will likely lock out and require a manual reset. While a temporary reset might restore hot water, the underlying issue will likely cause the problem to reoccur. Ignoring this error can lead to further damage to the unit or even create a safety hazard.
Common Causes of Takagi Code 200
- Scale buildup inside the heat exchanger restricting water flow.
- Insufficient water flow rate through the unit.
- Faulty high limit switch or thermistor.
- Combustion issues causing excessive burner temperature.
- Blocked or restricted venting.
Applicable Takagi Models
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