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Question DetailsAsked on 12/25/2017

switched propane dryer to gas, now clothes don't dry as well, should I change the jets back to Propane ?

Clothes eventually dry, but have to run through 2 or more cycles

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1 Answer


First check there is good airflow coming out of the exhaust duct when it is on, in case the duct came disconnected or partly blocked in the course of the changeover or pulling it in and out. Could be as simple as a crimped flex (ughhh) hose from the dryer.

You need to to use burners that are matched to the type of gas being used - doing otherwise can result in insufficient heat, or on the other hand excess heating which can be a fire hazard, but can also cause the built-in thermostatic cutout at the hot air chamber or the one(s) in the exhaust air (which regulate the drying temp to gentle, normal, or hot) to cut out excessively - basically allowing it to heat up quickly to above the set temp so the thermostat cuts out, then typically takes 20-60 seconds of no heating to reset and allow it to fire again - so the drying time goes way up.

The other thing is LP and natural gas commonly (not always) run at different pressure - LP comonly around 5-8" w.g., LP I have seen from around 7"-13" (most appliances are not rated to over 13" w.g.), so it might be your appliance regulator needs to be adjusted or changed out (many are not adjustable). this needs to be done by an Appliance Repair - Large contractor or a Plumber/Gas Fitter experienced in gas piping, because the pressure has to be measured with a manometer - a pressure gauge does not work because we are only talking a psi or pressure.

Assuming you have the correct jets for natural gas, incorrect gas pressure would be my guess for the second mosst likely cause - crimped exhaust ducting or blockage with lint most common in my experience. Lint blockage is pretty common - in pulling the unit out and putting it back in, the ducting (or the suicide boxes which recycle dryer air into the house and trap the lint inside) is bumped and big sheets of lint can fall free from the walls of the ducting, then blocking the duct as they blow around and pile up at a bend or outlet once the unit is restarted, causing an exhaust airflow failure - which greatly reduces the operating time of the dryer each cycle because it keeps overheating and shutting off the heat.

One other thing I have seen - notcomon, but occurs - when the burner/hot air housing was reassembled the gasket was misplaced or it was not lined up right in the frame, so the hot air flow into the dryer is either partly blocked or part of it is leaking out and not getting into the drum area.

Answered 2 years ago by LCD

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