On an ATAG boiler, code 133 indicates a problem with the gas supply. This error signals that the boiler is encountering difficulties in receiving or utilizing gas, which is crucial for its operation.
Understanding ATAG Boiler Error Code 133
When your ATAG boiler displays error code 133, it means the system has detected an issue preventing it from properly igniting or maintaining a flame due to a gas-related problem. This is a critical safety and operational error, as a consistent gas supply is fundamental for the boiler to heat water and provide central heating.
The trouble with the gas supply can stem from several areas:
- Insufficient or Interrupted Gas Supply: The boiler might not be receiving enough gas, or the supply could be inconsistent. This could be due to a closed main gas valve, issues with the gas meter, or even external supply problems.
- Gas Valve Malfunction: The boiler's internal gas valve, which controls the flow of gas into the combustion chamber, might not be opening correctly or functioning improperly. In some cases, an improperly functioning Honeywell electric valve could be the root cause.
- Ignition Issues: While primarily a gas supply code, it can sometimes be a secondary indicator of ignition problems if the gas is not reaching the burner to be ignited.
Diagnosing and Addressing Gas Supply Issues
Resolving an ATAG boiler error code 133 often requires careful diagnosis and, in many cases, professional intervention due to the complexities and safety risks associated with gas systems.
Initial Checks You Can Perform (for safety, if you are comfortable):
- Verify Gas Supply:
- Ensure that the main gas valve leading to your boiler is fully open. This valve is usually located on the gas pipework near the boiler.
- Check if other gas appliances in your home (like a gas hob or gas fire) are working. If they are also not working, the issue might be with your main gas supply to the property, and you should contact your gas supplier.
- Gas Meter Check:
- Ensure your gas meter is not showing any error codes or low pressure warnings.
- Confirm you have sufficient credit if you are on a prepayment meter.
When to Call a Professional
If the basic checks do not resolve the issue, or if you are unsure, it is crucial to contact a Gas Safe registered engineer (or equivalent certified professional in your region). They have the expertise and tools to safely diagnose and fix gas-related problems.
A professional engineer will:
- Thoroughly assess the gas supply to the boiler, checking pressure and flow.
- Inspect and test the boiler's internal gas valve, including specific components like a Honeywell electric valve, for proper operation.
- Check for any blockages in the gas line or issues with the burner.
- Ensure all safety devices related to gas are functioning correctly.
- Perform necessary repairs or replacements of faulty components.
Attempting to repair gas-related issues yourself can be extremely dangerous and should only be handled by qualified professionals.
