Ruud Error Code 13: Improper Combustion
How to Fix Ruud Code 13
- Step 1: Immediately shut off the furnace at the breaker.
- Step 2: Ensure you have working carbon monoxide detectors in your home, especially near sleeping areas. If you don't have them, install them immediately.
- Step 3: Open windows and doors to ventilate your home.
- Step 4: Call a qualified HVAC technician to inspect and repair the furnace. Do not attempt to restart the furnace until it has been inspected.
What Does Ruud Error Code 13 Mean?
Ruud error code 13, 'Improper Combustion,' means the furnace isn't burning fuel correctly. This can happen for several reasons, but the most important thing is that it could lead to a dangerous buildup of carbon monoxide (CO) in your home. CO is a colorless, odorless gas that can be deadly. The furnace's control board constantly monitors the flame and exhaust to ensure proper combustion. When it detects a problem, it shuts down the furnace and displays this error code to prevent further risk. Specifically, the system is likely detecting either a weak flame, a flame that's not properly established, or excessive carbon monoxide in the exhaust gases. This could be due to a gas supply issue, a problem with the burner, or a venting problem that's preventing the exhaust gases from escaping your home. Because of the safety risks involved with improper combustion, it's important to have a qualified technician diagnose and repair the problem as soon as possible.
Common Causes of Ruud Code 13
- Blocked or restricted flue/venting system
- Dirty or faulty flame sensor
- Low gas supply pressure
- Malfunctioning gas valve
- Cracked heat exchanger
Applicable Ruud Models
Need a Pro to Fix Ruud Code 13?
This error requires immediate attention from a licensed HVAC technician. Do not attempt repair yourself.
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