Kitchen Gas Appliances - norge dryer not heating
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12-28-01, 04:57 AM
hello ,cool site! I have a norge dryer about 8 years old. it is not heating well at all. I checked the vent,all clear there. when you start the dryer the coil glows red,then a large blue flame starts(I say large because it shoots almost all the way down the metal tube). the flame only lasts about 20-30 seconds before cutting off. about a minute and a half later it starts again.I replaced a part called a themo-disc on the side of the metal tube by the flame that has a glass window in it,this didn't help.I by passed a small dime sized silonoid that is also on the tube by the flame and this didn't help either. I'm also hearing lots of clicking noises.there are two silonods left that are tied together by the blower fan could it be these are or could the unit be bad at the coil? thanks for the advise!
Sharp Advice
12-28-01, 05:50 PM
Hello Elmo. Welcome to my Gas Appliances forum and our Do-It-Yourself Web Site.
Since you already checked the vent, I do hope you also checked the vents deflector hood outside. The other most likely parts causing this problem is the two solenoids on top of the gas valve and or the gas valve itself.
Below is a list of possibilities that may or may not apply.
Pick and choose what applies to your dryers current condition.
Restricted Exhaust Vent:
The vent tube is located behind or to the side of the dryer. It needs to be removed totally from both sides to completely clear out the lint. Check the entire system. This also includes the exhaust vent hood outside. It has a flapper that may not be opening fully or not at all. Locate any restriction within the entire exhaust system and clean out all lint. Replace exhaust vent tubing as needed. Plastic vent tubing is fine.
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.
Defective Gas Valve:
Remove entire unit as an assembly. Take the entire assembly to your local appliance parts store for testing. Gas valves are not repairable. Replacement is the only option if defective.
CAUTION: Do Not attempt to repair the gas valve! This is a non repairable item!
Defective Glow Coil:
It's a rare possibility but worth noting here. The glow coil may glow but just be too weak to allow current to continue to flow to the coils. The solenoid coils are also part of the electrical loop and may effect proper glow coil operation or functioning.
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 <lobes> that open and close those contact points. If the timer hangs-up on a lobe, it may or may not advance to the next cycle.
If the timer or any other selection switch, on the front control panel, is suspected of causing the existing problem your 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.
FYI:
The do-it-yourself person can do electrical tests and continuity tests on several of the parts. There are parts such as flame sensors, timers, solenoids, gas valves, etc. when neither of these tests will provide proof positive the part is actually functioning correctly. Therefore, do not rely solely on either test.
TIP:
Best method is to determine if any part is funtioning correctly is to carefully remove the part or parts you suspect to be the potential culprit, and have the local appliance parts store person run the required tests.
Check the ARCHIVES, within this forum, for other postings on this topic for further information.
Regards & Good Luck
Gas Appliances Forum Moderator
Tom_Bart....Fast, Fair, Friendly & Highly Efficient....:D
Accurate Power Equipment Company.....TCB4U2B2B
Energy Conservation Consultant & Natural Gas Appliance Problem Diagnostics Technician.
Since you already checked the vent, I do hope you also checked the vents deflector hood outside. The other most likely parts causing this problem is the two solenoids on top of the gas valve and or the gas valve itself.
Below is a list of possibilities that may or may not apply.
Pick and choose what applies to your dryers current condition.
Restricted Exhaust Vent:
The vent tube is located behind or to the side of the dryer. It needs to be removed totally from both sides to completely clear out the lint. Check the entire system. This also includes the exhaust vent hood outside. It has a flapper that may not be opening fully or not at all. Locate any restriction within the entire exhaust system and clean out all lint. Replace exhaust vent tubing as needed. Plastic vent tubing is fine.
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.
Defective Gas Valve:
Remove entire unit as an assembly. Take the entire assembly to your local appliance parts store for testing. Gas valves are not repairable. Replacement is the only option if defective.
CAUTION: Do Not attempt to repair the gas valve! This is a non repairable item!
Defective Glow Coil:
It's a rare possibility but worth noting here. The glow coil may glow but just be too weak to allow current to continue to flow to the coils. The solenoid coils are also part of the electrical loop and may effect proper glow coil operation or functioning.
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 <lobes> that open and close those contact points. If the timer hangs-up on a lobe, it may or may not advance to the next cycle.
If the timer or any other selection switch, on the front control panel, is suspected of causing the existing problem your 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.
FYI:
The do-it-yourself person can do electrical tests and continuity tests on several of the parts. There are parts such as flame sensors, timers, solenoids, gas valves, etc. when neither of these tests will provide proof positive the part is actually functioning correctly. Therefore, do not rely solely on either test.
TIP:
Best method is to determine if any part is funtioning correctly is to carefully remove the part or parts you suspect to be the potential culprit, and have the local appliance parts store person run the required tests.
Check the ARCHIVES, within this forum, for other postings on this topic for further information.
Regards & Good Luck
Gas Appliances Forum Moderator
Tom_Bart....Fast, Fair, Friendly & Highly Efficient....:D
Accurate Power Equipment Company.....TCB4U2B2B
Energy Conservation Consultant & Natural Gas Appliance Problem Diagnostics Technician.