If the pilot light is on and no hot water, then the regulator is not turning the gas flow on. An unlit burner may seem like a no-brainer when the water heater’s putting out cold water. Replace the pilot's thermocouple if the pilot won't stay lit after releasing the pilot button. There was truly something blocking it. That’s when he realized the water was not entering the hot water tank. However, burner failure may emanate from a variety of causes. Like any hardworking appliance, the water heater is subject to a variety of maintenance issues and common problems, but one of the most common complaints is that it doesn't produce … I did not have hot water and I saw the pilot light was lit but the burner would not fire. The pilot light is actually a bigger flame then the flame I … They also allow the homeowner to use renewable fuels and some companies are even offering mixes of heating oil and biodiesel, which produces less pollution than heating oil alone. No Hot Water . During the burning process, exhaust gases are vented out, either naturally (convection) or … The gas water heater … The pilot light heats up a sensor - that sensor must be properly positioned and clean to produce the signal that tells the WH it's okay to turn on the main burner. Replacing the pilot light assembly may mean the flame size or position isn't correct to heat that sensor (a thermocouple), thus, the WH thinks it is unsafe to turn on the burner. If your gas water heater uses a pilot light for ignition, relight the pilot if necessary. If the water from the hot tap goes cold, give a gas unit 15 minutes and an pressure relief valve 30 minutes to start making enough hot water for you to notice at the tap. Replace the thermostat if it doesn't turn on the burner to heat the water. The thermostat turned on and I could smell the gas but the burner did not light. A: Assuming that no one else has been hogging the hot water all day, the problem probably lies within your water heater. What happens is this: The thermostat light comes on, then shortly thereafter the ignition, pilot valve, and ECO lights come on, and the pilot valve opens and the ignition fires, lighting the pilot. I have a 1 yr old A O Smith Gnr50-200. About every other day or so, the main burner fails to light, and we are left with no hot water. There was no water feeding to the hot water tank due to both a blockage and pilot light that was not lit in our gas hot water tank. Water heater. I relit the pilot and the burner turned on. The commonest cause for this is a faulty thermocouple. Not only does every faucet in your house depend on the water heater, but so do appliances such as the clothes washer and dishwasher. Same thing relit pilot and burner fired up. Replace the burner assembly if it's at fault. Your water heater is a workhorse appliance that works nearly constantly. All electric water heaters and gas heaters that use electricity: The first issue to troubleshoot is a lack of power to the unit. He first separated the main water pipe from the boiler and discovered that the water was flowing fine. Every gas-powered and tank-type water heater uses the gas burner located in the combustion chamber to heat water, pilot light or electrode to light the fire, and gas control valve to deliver natural or propane gas. Oil-fueled boilers and heating systems are popular in areas where there isn't ready access to natural gas. I just installed a new Bradford 40 gallon water heater model M-I-403S6FBN and the pilot light ignited just fine but when I turn up the dial to "Hot" or "A" "B" or "C" tetmperature settings- it will not increase the flame to heat water. 3 days later no hot water again. : Assuming that no one else has been hogging the hot water hot water water tank may emanate a. 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