The water heater uses the piezo igniter to light the main gas burner and when it is pressed down it releases the electric spark.
Gas water heater ignition problem.
How to solve ignition problem in gas water heater how to change magnetic sensor in gas water heater.
If the igniter is getting voltage but it doesn t glow this indicates that the igniter is defective and should be replaced.
The spark gap is factory set 0 125 and should be maintained.
To determine if the igniter is defective first make sure the igniter is getting voltage.
Turn the unit off.
Some of these conditions are dangerous.
The thermostat is part of the gas valve.
A defective thermostat is also possible.
Some water heaters use an igniter to ignite the gas.
A clogged flue or vent could be the problem.
We also discuss both gas igniters and gas regulators on gas.
When these rods react to the bacteria present in the water they produce hydrogen sulfide which has a characteristic smell of rotten eggs.
When troubleshooting lighting problems it is recommended to test it first.
If the problem persists change the rods to zinc.
Gas ignitors or pilotless ignition troubleshooting guide gas igniter troubleshooting on heating equipment.
How to diagnose and repair a faulty atmospherically vented gas fired water heater.
Here are the reasons symptoms and solutions for the ignition problem.
Some brands of tankless water heaters are set in a way that if there are three failed attempts to ignite the burner the error code will appear showing the ignition failure problem.
See venting a gas water heater for information on keeping your vent clear.
Hi limit switch has tripped.
If the igniter fails the burner will not light.
Troubleshooting ignition failure problem.
Common problems and how to fix them example tank is a john wood 40 gallon.
This article explains the cause diagnosis and cure of gas heater or gas appliance igniter problems that cause bangs whooshes noises clicking or failure to ignite properly.
This video provides step by step instructions for replacing the igniter and flame sensor on ao smith gas water heaters.
Clean the tank with chlorine bleach preferably flush afterwards.
See water heater gas valve problems for the issues surrounding this device.
When you see water that appears to be leaking from the bottom of a gas water heater it could be because of condensation try turning up the thermostat a leaking or loose drain valve or the t p valve draining some water through the overflow pipe due to tank overpressurization.