GE dryer Hot Surface Ignitor works only sometimes?


  #1  
Old 02-07-05, 06:28 PM
MSM69Z28
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Thumbs down GE dryer Hot Surface Ignitor works only sometimes?

reading through the forums. having trouble with heat. sometimes it dries, but often has to be run for several cycles before hot enough.

removed cover on dryer. started the dryer. didn't see the orange light from the ignitor. tried it a few more times, then it suddently started working. turned a bright orange and then the flames kicked on. worked twice. then let it sit a few minutes and tried again yet no orange and no flame.

removed ignitor. no resistance across it. then tried measuring across some of the prongs from the coils and 0 resistance again. what could cause the ignitor to be intermitant?

Any help appreciated. This forum has been very helpful so far.

Thanks,

Michael
 
  #2  
Old 02-07-05, 08:49 PM
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Hello Michael. Welcome to my Gas Appliances topic and the Do-It-Yourself Web Site.

Based on the fact that the dryer is heating but the dryers burner shuts down too soon, chances are the venting system is restricted.

Very common problem when the condition you're describing happens. The test is to remove the entire vent from the dryer and dry a normal load of clothes.

If the same problem does not occur, the venting system is restricted. Cleaning and clearing it is required. Do not forget to check the vent hoods flapper door. It must be freely able to move.

If the same problem happens, the problem is elsewhere within the dryer. Best bet before attempting to replace parts, is to do the testing suggested above. It is the most common problem and least costly to resolve the problem.

If that does not resolve the problem, read the existing questions on the subject of dryers that do not provide heat or provide much heat. Doing so will quickly provide you with additional information on how to resolve the problem.

It's also possible one or both of the solenoids could be defective and or the gas valve could be defective.

There are two solenoids...both are on top of the gas valve. All terminals on both solenoids must have continuity. If not, you'll need to remove them from the top of the gas valve by removing the entire gas valve assembly first.

Remove both solenoids off the gas valve body by removing the hold down cover plate and replace them both if defective. They are sold only in pairs. Or take the entire gas valve unit to your local appliance parts store and have the entire assembly and all the parts tested individually and as an assembly.

Defective Gas Valve could be the problem. Remove entire unit as an assembly. Take the entire assembly to your local appliance parts store for testing.

CAUTION: Do Not attempt to repair the gas valve! This is a non repairable item. Replacement is the only option, if found to be defective.

Flame Sensor could be the problem. This part is located on the burner housing. If it's defective, it will cause the glow coil to not function or cause the problem your describing. You can test this part with a continuity tester or an ohm meter.

Below is almost all the likely causes for the problem causes, possible solutions and help links.

Defective Solenoids:
There are two...both are on top of the gas valve.
Solenoids also supply voltage to the glow coil and are part of the electrical loop.

You'll need to remove them from the top of the gas valve by removing the entire gas valve assembly first. Take them off the gas valve body by removing the holddown cover plate or take the entire gas valve unit to your local appliance parts store and have the entire assembly and parts tested.

Timer:
Control center for all functions. The timer has internal contacts and as it advances through the cycles, one of those contacts can become burned out, stuck opened or closed for any one of several reasons.

Timers also have cams that open and close those contact points. If the timer or any other selection switch, on the front control panel, is suspected of causing the existing problem you're having with the appliance, be sure all selections are correctly set.

If they are, the timer or other function selected switch may be defective. Timers are a non repairable item. Any or all of the control panels switches can be removed and taken to the local appliance retail parts store for testing.

Timers and switches can also be checked for continuity using an ohm meter or continuity tester. However, do not rely soley on a continuity test for proper timer functioning. Timers and switches are a non repairable items.

Fuseable Link:
Check for continuity across this part. It will be located in the exhausts venting system prior to the discharge outlet. If there is no continuity, replace the part. Not all dryers have this part.

Retail appliance parts dealers can also help determine what the most likely possible problem may be. Take with you the make, model and serial numbers.

Appliance parts dealers are an excellent source for original replacement parts. Dealers are listed in the phone book.

If you need further assistance, use the reply button to add any additional information or ask additional questions. Doing so will automatically keep your question at the top of the forum list.

Retail appliance parts dealers can also help determine what the most likely possible problem may be. They will need the make, model and serial numbers. Appliance parts dealers are an excellent source for original replacement parts and problem resolving matters. Dealers are listed in the phone book under appliances.

Be sure the electrical power to the appliance is turned off, before attempting any repairs. Always check for gas leaks whenever moving the appliance and/or a repair includes any connection of a gas part.

Read the existing questions on the subject of dryers. Doing so will quickly provide you with answers to questions & provide additional information on how to resolve the problem.

Dryer help info:
http://forum.doityourself.com/showthread.php?t=159481

General Electric Appliance Home Page:
http://www.ge.com

Advertisers & Sponsors Web Sites:
Appliance Parts, Pictures & Help:
http://www.PartSelect.com

Appliances Parts & Help:
http://www.pcappliancerepair.com

Kitchen Appliance Parts:
http://www.parts-depot.online.com

Use the reply button to add additional information or ask additional questions. Doing so will automatically move or keep your question to the top of the forums list of questions.

Web Site Host, Forums Monitor, Gas Appliances Topic Moderator & Multiple Forums Moderator. Energy Conservation Consultant & Natural Gas Appliance Diagnostics Technician.

Personal Safety Reminder:
Buckle Up & Drive Safely.
"The Life You Save, May Be Your Own."

DRYER SERVICE TIP:
It's always adviseable to clean the entire exhaust venting system every 2 years. Or during any dryer maintenance, connection, servicing and or repairs.
 
  #3  
Old 02-08-05, 09:30 AM
MSM69Z28
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thanks for the reply. i did read most of this infomation already as it was posted on the sticky. i have confirmed the venting is fine. i have checked there is not resistance across the ignitor or between the prongs on the valves (one 2 prong and one 3 prong). 2 out of 10 times the ignitor will turn orange on startup and i have full power heating with flames. the remainder of the time, the ignitor never glows?

your reply lists several scenarios, but what is the most likely source considering these symptoms? What would be my order of testing given what I have already done?

Thanks,

Michael
 
 

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