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Re: ignitor will lid for a few seconds
This is commonly caused by a weak igniter. Over time, the igniter wears out and does not draw enough current to open the gas safety valve on the burner assembly. This is a designed safety feature that prevents free-flowing gas from entering the dryer cabinet without ignition. The following link explains how these igniters work:
I know the link is for a gas range, but the types of igniters and theory of operation is still the same. In effect, your igniter may have the appearance of working correctly by glowing, but it may be too weak for ignition to occur. I would recommend you try replacing the igniter.
If you have quesitons, or require additional assistance, please let me know before you rate the solution. I hope this helps you.
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furnace operation= call for heat- inducer blower motor energizes- pressure switch makes- after a few seconds ignitor activates.
If this series of processes is not whats happening the furnace may be going into a code safety. Call to discuss further=913-557-9111
even though the ignitor glows it doesn't mean it's good it opens the gas valve by amps not just because it glows,if you turn on the stove and when you see it glow if the flame doesn't ignite within 40 to 50 seconds you have a bad ignitor.if you leave it alone for a few minutes does the flame ignite?the only other thing it could be is a bad gas valve but most likely it will be the ignitor
Continuity is great but did they perform an ampere test on the ignitor while the ignitor was hooked up inside the unit? An ignitor typically draws between 3 and 3.3 amperes any less then this would constitute a weak ignitor and the ignitor should be replaced if it is weak because it takes much longer to ignite the gas inside a dryer. An ignitor would always show conductivity except if the element were broken. So to start with wrong test was performed. Secondly there are also run thermistors and hi and low limit thermistors that act as relays that can also be checked in dryers by performing continuity tests on these thermistors click this link http://c.searspartsdirect.com/lis_png/PLDM/K0810208-00003.png this is one of the schematics to your dryer k 550 is a thermistor and k 560 is a thermostat both should be tested as mentioned above. M 110 is the gas vavle which on other units the coil is replaceable but is only sold along with the valve on an LG which also has to be tested that power is going to the solenoid on top of the valve and that it is going to the ignitor. If you have any further questions message me back. I await your reply as to any further questions as well as your finds as well. Thanks again
your pilot need to be check , most likely it is old and need to be change. if it is old it will go on but not strong to signal the gas to kick in so it just go on for a few second and then when it feal no gas it turn off. if your gas supplay is good then thats your problem the ignitor (pilot) good luck
Find the bake ignitor (you may need to remove bottom drawer or oven cavity floor to get to the ignitor). Turn on the bake. If the bake ignitor comes on (starts glowing after a few seconds) - check the amperage on the bake ignitor wires when it's on. Amperage should be 2.5-3A. If less than 2.5A - replace ignitor. If the ignitor does not come on - check the voltage on the ignitor, should be the line voltage 110-120v AC. If there is a line voltage on the ignitor and it's not coming on - replace. Ignitor part numbers : WB2X9154, 4342528, SGR403, 5304401265;
Those ignitors are interchangeable, if you can splice the wires. If not comfortable splicing wires - replace it with the first one in the list, should be direct replacement.
Find the bake ignitor (you may need to remove bottom drawer or oven cavity floor to get to the ignitor). Turn on the bake. If the bake ignitor comes on (starts glowing after a few seconds) - check the amperage on the bake ignitor wires when it's on. Should be 3 - 3.6A. If less than 3A - replace ignitor. If the ignitor does not come on - check the voltage on the ignitor, should be the line voltage 110-120v AC. If there is a line voltage on the ignitor and it's not coming on - replace.
Part numbers, the first one being the direct replacement: WB13T10045, 12400035, WB13K21, WB2X9998, SGR412, NR020, 5303935066, 814269, 9753108. Those ignitors are interchangeable, if you can splice the wires, if not comfortable splicing wires - order the first one.