Once i purchased a new thermostat, the fuse would still blow. The first time it blew fuse, I replaced the fuse and it lasted for couple of days. The second and the third time it lasted much shorter. I am still popping fuses and reading over 24 volts. Can you help? If your thermostat wire touches the metal frame of the furnace, this can cause a blown fuse. In addition, the dryer may have a thermometer and temperature control or a simple thermostat. The fuse will literally pop out when this happens. I made sure the new thermostat … When a thermostat wire touches the metal frame of the furnace, it can deliver more voltage than the wires are designed to handle. If I run the dryer through a cycle with the thermal fuse bypassed it runs fine. The fuse is okay if I don't turn heat on. I forgot to … The thermal fuse (thermostat cut off fuse) blows out every timer however, this app started with the failed heating element coil . We use cookies to give you the best possible experience on our website. Ton the 3rd thermal fuse replacement I tried lowest heat setting – it blew after 1,5 loads of laundry. Forum discussion: So I bought a couple fancy new wifi enabled thermostats for my house recently and screwed up installing one of them. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. If you want to check your fuse and other circuit components, simply inspect it or hook it up to a multimeter (Testing for a blown fuse). If I turn heat on, then the 3amp fuse blew within 3 or 5 minutes. Today I tried to turn on the AC through my thermostat and the fuse blew on my furnace. It keeps blowing the thermal fuse. AMI PARTS 3387134 & 3977767 High-Limit Thermostat 3977393 & 3392519 Thermal Fuse Dryer Replacement Part Kit Compatible With Whirlpool & Kenmore Dryers 4.6 out of 5 stars 169 $12.47 $ 12 . Blowing Low Voltage Fuse Breaker Trip | Control Wiring Troubleshooting - I’ve got a 5 amp fuse that keeps popping on a circuit board. I have replaced the high-limit thermostat, the thermal cut-off, and the thermistor. I have replaced the thermal fuse multiple times. I have goodman unit with furnace inside and and outdoor AC/heat. I bypassed the thermostat and the AC worked just fine. The voltage out of the transformer reads 26.3 volts. Before that I tried the air fluff (no heat) to see if the heating element coil would heat up (it didn’t). So there are three temperature sensors in most dryers, and the thermal fuse is the last. An air handler for a heat pump of mine on one of my properties is constantly blowing the 5 amp fuse when my thermostat calls for heat. Every time i turn thermostat to heat it blows fuse in unit - Answered by a verified HVAC Technician. When I replace the thermal fuse, the dryer runs too hot and blows the thermal fuse. 47 ($3.12/Count) Check the exhaust path for excessive lint or debris all the way to the exit point of the exhaust pipe. After some troubleshooting, I narrowed the issue down to the thermostat. The fuses are just not made to handle that much amperage. It has no issues with fan and cool calls. The leading cause of thermal fuse burnout is obstructed airflow. I also have blowing fuse problem. Hello, I have been having some issues with my ac at home. Some troubleshooting, I replaced the high-limit thermostat, the fuse and it much... Handle that much amperage wifi enabled thermostats for my house recently and screwed up one. I bought a couple fancy new wifi enabled thermostats for my house recently and screwed up installing of. Runs too hot and blows the thermal fuse bypassed it runs fine have been having some issues with and! 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