A boiler pilot light that won’t stay lit can signal underlying issues, from a faulty thermocouple to gas supply problems. Understanding the causes can help you take the right steps. Learn common reasons for pilot light failure and when to seek professional boiler repair.

On a chilly winter morning, you throw off your blankets. A strong, icy breeze sends shivers down your spine. You open up your heating unit to get hot water and to your shock, you discover that boiler has gone belly up.

Attempts to relight the pilot light have been unsuccessful. It’s not going to stay on. Perhaps the pilot stays lit for a little while and the boiler tries to light, but then shuts off. What causes this to happen?