Something is running but the flame does not ignite.

Bosch tankless water heater won't ignite. It can happen even in the middle of a hot shower. There are arguments for investing in a tankless water heater including the fact that it generates hot water only when you need it—and for as long as you need it—saving 27 to 50. At times, your exhaust or air supply might get blocked, which can cause your tankless water heater to stop heating.

Sep 7, 2023 1:30 pm. Here are the reasons, symptoms, and solutions for the ignition problem: When you click the igniter to.

The heating element is covered under. Check the color of the flame after a hot water tap has been opened. Check if the water inlet, water outlet and gas inlet are connected to the right pipes.

It wouldn't even click which is the spark that ignites the gas. The primary fan spins slowly when the water heater is working. The flow switch doesn't open as the minimum pressure in the incoming supply is not met.

The voltage must be 120 vac and the element correctly grounded. This helps prevent the water heater from having an open. Our tankless water heater stopped working.

If the flow is too low, the burner will not ignite. Check if the polarity of the batteries are positioned correctly. Water heater igniter won’t spark.