Water Heater Got Wet Pilot Won't Light

Water Heater Got Wet: Pilot Won't Light – Troubleshooting and Repair

So, your water heater's gotten wet, and now the pilot light refuses to ignite? This is a common problem, often stemming from a simple issue, but can also indicate a more serious problem requiring professional attention. This article will guide you through troubleshooting steps to diagnose the problem and potentially get your hot water back on. Safety is paramount, so always turn off the gas supply to your water heater before attempting any repairs.

Understanding the Problem: Why Water and a Pilot Light Don't Mix

Water and electrical components don't mix well. When water enters your water heater's gas control system, it can short-circuit the igniter, preventing the pilot light from sparking and igniting the gas. This is often the case after a leak, excessive humidity, or even a simple spill near the unit. Corrosion caused by moisture can also damage vital components within the system, leading to further complications. The problem might not be immediately apparent; sometimes, it takes time for the water damage to manifest itself as a pilot light issue.

Troubleshooting Steps: A Step-by-Step Guide

Before calling a plumber, try these troubleshooting steps. Remember, if you're uncomfortable working with gas appliances, call a professional immediately.

1. Safety First: Turn off the gas supply to your water heater. Locate the gas shut-off valve (usually a knob or lever near the water heater) and turn it to the "OFF" position.

2. Check for Obvious Leaks: Inspect the water heater for any visible leaks. Look for water pooling around the base, dripping from pipes, or signs of rust or corrosion. Addressing any leaks is crucial before attempting to relight the pilot.

3. Dry the Area: Use a clean cloth or towel to thoroughly dry the area around the gas control valve and the pilot assembly. Pay close attention to any electrical components, ensuring they are completely dry. Allow ample time for the area to air dry.

4. Check the Thermocouple: The thermocouple is a small metal rod that senses the pilot flame. If the thermocouple is wet or corroded, it won't be able to send the signal to keep the gas flowing. Visually inspect it for any damage.

5. Relight the Pilot (if dry): Once the area is completely dry, follow the instructions provided on your water heater's manufacturer's label to relight the pilot. This usually involves holding down the pilot button while igniting the pilot with a match or lighter. If the pilot stays lit, your problem is likely solved.

6. Check the Gas Supply: If the pilot still won't light, the problem could be with your gas supply. Check the gas valve and ensure it’s fully open. You may need to call your gas company to check for any issues with your gas line.

7. Inspect the Igniter: If your water heater uses an electronic igniter instead of a standing pilot, the igniter might be damaged by water. This component often needs professional replacement.

When to Call a Professional

If you've followed these steps and the pilot light still won't ignite, it's time to call a qualified plumber or gas appliance technician. Attempting further repairs yourself could be dangerous. Here are some instances where professional help is absolutely necessary:

• Persistent Leaks: If you find leaks, don't attempt to fix them yourself.
• Gas Smell: If you smell gas, evacuate the area immediately and call your gas company.
• No Ignition After Drying: If the area is thoroughly dry, and the pilot still refuses to ignite, there’s likely a more complex problem requiring expert diagnosis.
• Unknown Issues: If you're unsure about any step in the troubleshooting process, it’s best to seek professional assistance.

Regular maintenance, including annual inspections, can help prevent future issues with your water heater. Remember that a properly functioning water heater is crucial for your home's comfort and safety. Addressing any issues promptly is key to avoiding more serious and costly problems down the road.