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OT: Natural gas dryer question

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  • OT: Natural gas dryer question

    I know this is a plumbing forum but maybe someone here has appliance experience. I have a NG dryer that is not drying my clothes fully. It gets hot but I think for a too short period of time. Any suggestions to what may be wrong? Thanks all.
    Oops.. I meant to say I also thoughly cleaned the dryer and the venting too.
    Last edited by D'Brie; 02-21-2009, 12:44 AM.

  • #2
    Re: OT: Natural gas dryer question

    Check to make sure the vent is clean, it may get too hot that it shuts down on a safety, either way check the vent


    • #3
      Re: OT: Natural gas dryer question

      Please try this and post the results.

      A) With nothing inside the dryer drum set to high heat and about 15 minutes on the timer. After it has run a few minutes go outside. Is it blowing quite a bit of hot air?

      B) Next try it with a good load of damp towels and please check it about every 5 minutes outside. Also this time please check temp in the dryer drum too. You don't need exact temp. Is it hot but not burning up hot?

      C) If there isn't good air flow through all the vent pipe and good air flow outside, then the dryer may well cycle on safety cutouts.

      D) If the inside of the drum doesn't heat up well and there is good air flow then you should think about replacing the thermostat(s) and the limit switch. Normally dryers have more than just HOT and AIR. They may have WARM-DELICATE, MEDIUM-PERMA PRESS and HOT- COTTONS. That can mean there are 3 Snap Disk thermostats next to each other or a temp sensor and adjustable thermostat. Newer fancy dryers use a temp sensor and micro processor for control. (Yaupo Schight if you ask me!) If you listen with the dryer running and nothing in it, the gas should cycle on and off pretty frequently. Note the on and off time using a clock or watch. Try this for low and high heat settings. With it on HOT/High it should fire longer per cycle. Try listening when right near the dryer. It's wild what you should be able to hear happening.

      If you happen to have poor air flow and can't figure what's wrong, try setting it to AIR-NO HEAT and remove all the vent pipe-tubing so it blows out the back of the dryer. Is there good flow now? If not, you need to take the dryer apart and clean out the blower chamber and anything connecting it to the drum. You want to locate the thermostat(s) and limit switch and clean them and the area near them. (This is normally a task for a trained repair person and not a DIY project.)

      Bottom line: If you find your dryer needs much in service and parts you may want to think about replacement with a high efficiency model. Over say 10 years it will more than pay for itself in saved gas and electricity. No matter what be sure all vent tubing is well cleaned out. I push a small hand sewer snake in from outdoors, tie a rag to it and crank it and pull slowly so the mess end up outdoors. I do this several times and you would not believe all the caked up lint that comes out. The rag need to be a kind of tight fit but not a forced fit into the tubing.

      Dryer blowers don't make much pressure and need free flow or you end up with much less than the design air flow through your dryer. This results in wild problems.

      Good luck and please keep us updated. Sorry for what must seem like a rant here.
      Last edited by Woussko; 02-21-2009, 11:43 PM.


      • #4
        Re: OT: Natural gas dryer question

        remove lint screen dryer sheets plug them up softner comes off of sheets try running water thought screen
        Last edited by jeff; 02-21-2009, 04:11 PM. Reason: add


        • #5
          Re: OT: Natural gas dryer question

          Originally posted by jeff View Post
          remove lint screen dryer sheets plug them up softner comes off of sheets try running water thought screen
          And how.

          I only use liquid fabric softener and very little at that in the final rinse water. Personally I find clothes and towels are fine if well rinsed. Too many get dried full of detergent and bleach. EEEEEKKKK


          • #6
            Re: OT: Natural gas dryer question

            its the dryer sheets that people use


            • #7
              Re: OT: Natural gas dryer question

              there are typically at least 2 heat sensors on the dryer venting. this is what determines if it's getting to hot for safety.

              the most obvious is lack of airflow. this is due to a lint buildup in the vent or the blower wheel.

              easiest way to test is to remove the vent from the back of the machine and run a normal load of clothes.

              if it woks correctly, then it's the ducting. if still poor, it's in the dryer.

              depending on how old the machine is, it could be simple or beyond a diy. think of the new machines as computers. old is basic, high end new is tricky.

              try cleaning and disconnecting the vent first, and get your results.

              phoebe it is