Ao Smith Powershot Codes

Is your home colder (or hotter!) than you'd like? Are you staring at a flashing code on your AO Smith PowerShot water heater and wondering what to do? A malfunctioning water heater can disrupt everything from comfortable showers to efficient heating. Don't panic! This guide will walk you through troubleshooting common PowerShot error codes, helping you diagnose and potentially resolve the issue yourself, safely and efficiently.

Understanding AO Smith PowerShot Error Codes

AO Smith PowerShot water heaters are designed with built-in diagnostics that display error codes. These codes are your water heater's way of telling you something is wrong. Ignoring them won't make the problem go away; it will likely worsen and could lead to more costly repairs. Understanding what these codes mean is the first step in effective troubleshooting.

Before we begin:Safety First! Before attempting any troubleshooting steps, turn off the gas supply to the water heater at the gas valve and disconnect the power at the breaker. Never work on gas appliances without these precautions. If at any point you feel uncomfortable or unsure, stop immediately and call a qualified HVAC technician.

Common AO Smith PowerShot Error Codes and Troubleshooting

Here's a breakdown of some common error codes, what they signify, and the steps you can take. Remember to always consult your owner's manual for the most accurate and detailed information specific to your model.

Code 11 or 111: Flame Failure

This is one of the most frequent codes. It indicates that the burner failed to light or the flame was lost during operation. Here's what to check:

Without Tools:

Gas Supply: Is the gas turned on to the water heater? Double-check the gas valve is in the "on" position.
Other Gas Appliances: Are other gas appliances in your home working correctly? This helps determine if the issue is with the water heater or the main gas supply.
Ventilation: Ensure the venting system is clear of obstructions. Look for bird nests, debris, or anything blocking the flue.

With Basic Equipment (Screwdriver, Multimeter - Use with Caution!):

Igniter: Carefully inspect the igniter. Is it clean and properly positioned near the burner? A dirty or misaligned igniter can prevent ignition. Clean it gently with a dry cloth. (Caution: Never use water or solvents on the igniter)
Flame Sensor: The flame sensor detects the presence of a flame. A dirty or faulty flame sensor can cause this error. Locate the flame sensor (it's usually a small metal rod near the burner). Clean it with fine steel wool or an emery cloth.
Gas Valve:(For Advanced Users ONLY – Proceed with Extreme Caution!) Using a multimeter, check the voltage going to the gas valve when the water heater is attempting to ignite. If there's no voltage, the control board might be faulty. (This step involves working with gas and electricity. If you're not comfortable, call a professional.)

When to Call a Professional:

If you've cleaned the igniter and flame sensor and the problem persists.
If you suspect a faulty gas valve or control board. These components require specialized knowledge and tools to diagnose and repair.
If you smell gas. Evacuate the area immediately and call your gas company.

Code 33 or 333: Blocked Vent/Air Supply

This code indicates that the venting system is obstructed, preventing proper exhaust of combustion gases, or the air supply is restricted. This is a serious safety concern as it can lead to carbon monoxide buildup.

Without Tools:

Visual Inspection: Thoroughly inspect the entire venting system, from the water heater to the outside termination point. Look for any visible obstructions like bird nests, leaves, snow, or collapsed sections of vent pipe.
Air Intake: Check the air intake opening (usually a pipe leading into the combustion chamber) for obstructions. Make sure it's clear of debris.

With Basic Equipment (Screwdriver):

Vent Pipe Disassembly: Carefully disconnect sections of the vent pipe to inspect for blockages that aren't visible from the outside. Wear gloves and eye protection.

When to Call a Professional:

If you find significant blockages that are difficult to remove.
If you suspect a blockage within the water heater itself.
If you're uncomfortable working with the venting system.
If you suspect carbon monoxide exposure. Evacuate the area and call emergency services immediately.

Code 66 or 666: Overheat Condition

This code means the water temperature inside the tank has exceeded its safety limit. This can be caused by several factors.

Without Tools:

Reset Button: Locate the high-limit reset button (usually a small button on the top of the water heater). Press it firmly. If it clicks, it indicates the high-limit switch tripped. This might resolve the issue temporarily, but you still need to investigate the underlying cause.
Water Temperature Setting: Check the water temperature setting on the control panel. Is it set too high? Lower it to a more reasonable temperature (around 120°F is generally recommended).

With Basic Equipment (Multimeter - Use with Caution!):

Thermistor: The thermistor measures the water temperature. A faulty thermistor can cause the control board to misread the temperature and trigger the overheat protection. Using a multimeter, check the resistance of the thermistor. Compare the reading to the manufacturer's specifications. (This requires knowing the proper testing procedure and having the correct specifications.)

When to Call a Professional:

If the reset button trips repeatedly.
If you suspect a faulty thermistor or control board.
If you notice signs of overheating, such as steam or boiling water.

Code 77 or 777: Combustion Air Blower Failure

This code indicates a problem with the combustion air blower, which is responsible for supplying air to the burner. Without proper airflow, the water heater won't function correctly.

Without Tools:

Visual Inspection: Listen for the blower motor when the water heater is trying to ignite. Can you hear it running? If not, it might be faulty.
Obstructions: Check for any visible obstructions blocking the blower inlet or outlet.

With Basic Equipment (Multimeter - Use with Caution!):

Voltage Check: Using a multimeter, check the voltage going to the blower motor when the water heater is attempting to ignite. If there's no voltage, the control board or wiring might be faulty. (This step involves working with electricity. If you're not comfortable, call a professional.)

When to Call a Professional:

If the blower motor is not running and you've confirmed it's receiving power.
If the blower motor is making unusual noises.
If you suspect a faulty control board.

Code 99 or 999: Internal Control Error

This code is more general and indicates a problem within the water heater's control system. It can be difficult to diagnose without specialized equipment and knowledge.

Without Tools:

Power Cycle: Try turning off the power to the water heater at the breaker for a few minutes, then turning it back on. This might reset the control board and clear the error.

When to Call a Professional:

If the error code persists after power cycling.
This code often requires professional diagnostics and repair.

General Troubleshooting Tips

Consult Your Owner's Manual: This is the most important resource. Your owner's manual contains specific information about your model, including detailed explanations of error codes and troubleshooting steps.
Keep it Clean: Regularly clean the area around your water heater to prevent dust and debris from accumulating.
Preventative Maintenance: Schedule annual maintenance with a qualified HVAC technician to ensure your water heater is operating efficiently and safely.
Document Everything: Keep a record of the error codes you've encountered and the steps you've taken to troubleshoot them. This information will be helpful for the technician if you need to call for professional help.

When to Call a Professional - The Bottom Line

While some minor issues can be resolved with simple DIY troubleshooting, it's crucial to recognize when a professional is needed. Always call a qualified HVAC technician if:

You are uncomfortable working with gas or electricity.
You suspect a gas leak.
You are unable to diagnose the problem after following the troubleshooting steps.
The error code persists after attempting basic troubleshooting.
You suspect a faulty gas valve, control board, or other major component.
You are experiencing persistent problems with your water heater.

By following these steps and knowing your limits, you can effectively troubleshoot many common AO Smith PowerShot error codes and potentially save yourself time and money. Remember, safety is always the priority. When in doubt, call a professional!