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Is there a fuse in the thermostat? The thermostat

Is there a fuse in the thermostat? The thermostat does not light up when turned on.

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What kind of t- stat is it

Posted on Apr 18, 2009

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No ignition


Many have a small 3A fuse similar to a car type push in fuse on the main board.

Feb 26, 2014 | Modine Effinity93 - 260,000 BTU - High...

1 Answer

2003 trailblazer ext obc test doesnt register


Its an OBD connector.

Check the CIGAR fuse in the under hood fuse block.

Its probably the thermostat. P0128 code?

Apr 02, 2013 | 2004 Chevrolet TrailBlazer

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The difference between thermal fuse and thermostat


Thermal fuse is a heat-sensitive safety feature that shuts down system when overheating is detected.
In electrical wiring, the thermal fuse reacts to high temperature caused by too many amps on the electric circuit. When temperature exceeds the fuse amp rating, then the fuse trips and cuts power to electric circuit.
Example of thermal fuse is a household circuit breaker.
Gas water heaters have a different type of thermal fuse located in the combustion chamber or on the combustion chamber door, and also inside a copper probe inside water tank. Water heater thermal fuses will trip when water temperature exceeds fuse rating, or when heat inside the combustion chamber exceeds temperature rating of fuse. This action will cut off gas supply to water heater.
So a thermal fuse is a safety feature.

Thermostat is not a safety feature.
Thermostat is a measuring tool.
Thermostats measure temperature.
Example of thermostat is outdoor thermometer, or cooking thermometer, or Heat-AC control located on wall inside house.
Thermostats can give a simple temperature reading, or they can cause a separate control to turn on-off depending on application.
For example thermostat on Heat-AC will read room temperature, and when temperature exceeds setting, this triggers a switch that turns Heat-AC on-off.

Many appliances have both thermal safety fuse and thermostat.
Take for example a gas water heater. A copper tube extends into the water tank. Inside the copper tube are 2 things: A thermostat probe to measure water temperature, and a thermal fuse called an ECO for energy cut off. The ECO is a thermal fuse, and is a safety feature.
http://waterheatertimer.org/images/Gas-valve-ECO2-358.jpg
The thermostat reads temperature of water, and turns water heater on-off to keep water hot. A person can adjust water temperature by adjusting the thermostat dial on front of water heater.
However if the thermostat fails, or some other problem occurs, and water inside the tank gets hotter than 180 degrees, then the ECO or thermal fuse will trip. When the thermal fuse trips, this turns off gas to the water heater so water cannot get any hotter. The safety device prevents water heater explosion. The water heater must be repaired since this particular thermal fuse cannot be re-used afterwards, and must be replaced.

Oct 11, 2012 | Dryers

1 Answer

Difference between thermostat and thermal fuse


Hello Mary
Thermal fuse is a heat-sensitive safety feature that shuts down system when overheating is detected.
In electrical wiring, the thermal fuse reacts to high temperature caused by too many amps on the electric circuit. When temperature exceeds the fuse amp rating, then the fuse trips and cuts power to electric circuit.
Example of thermal fuse is a household circuit breaker.
Gas water heaters have a different type of thermal fuse located in the combustion chamber or on the combustion chamber door, and also inside a copper probe inside water tank. Water heater thermal fuses will trip when water temperature exceeds fuse rating, or when heat inside the combustion chamber exceeds temperature rating of fuse. This action will cut off gas supply to water heater.
So a thermal fuse is a safety feature.

Thermostat is not a safety feature.
Thermostat is a measuring tool.
Thermostats measure temperature.
Example of thermostat is outdoor thermometer, or cooking thermometer, or Heat-AC control located on wall inside house.
Thermostats can give a simple temperature reading, or they can cause a separate control to turn on-off depending on application.
For example thermostat on Heat-AC will read room temperature, and when temperature exceeds setting, this triggers a switch that turns Heat-AC on-off.

Many appliances have both thermal safety fuse and thermostat.
Take for example a gas water heater. A copper tube extends into the water tank. Inside the copper tube are 2 things: A thermostat probe to measure water temperature, and a thermal fuse called an ECO for energy cut off. The ECO is a thermal fuse, and is a safety feature.
http://waterheatertimer.org/images/Gas-valve-ECO2-358.jpg
The thermostat reads temperature of water, and turns water heater on-off to keep water hot. A person can adjust water temperature by adjusting the thermostat dial on front of water heater.
However if the thermostat fails, or some other problem occurs, and water inside the tank gets hotter than 180 degrees, then the ECO or thermal fuse will trip. When the thermal fuse trips, this turns off gas to the water heater so water cannot get any hotter. The safety device prevents water heater explosion. The water heater must be repaired since this particular thermal fuse cannot be re-used afterwards, and must be replaced.

Oct 11, 2012 | Dryers

1 Answer

Dryer will not start


The temperature of the air being exhausted is monitored by the cycling thermostat and the thermal fuse mounted on the blower housing. The thermal fuse, which is wired in series with the motor circuit, fails when the cycling thermostat fails to regulate the exhaust air temperature. Failure of the thermal fuse results in the motor not running and the dryer not working at all.

Remove the dryer real panel to access the blower housing and check the continuity of the thermal fuse. Grab a volt-ohmmeter and set it to the R X 1 scale then disconnect one wire from the thermal fuse terminals then check the continuity of the thermal fuse. Replace the thermal fuse should it read open.

Indicate the exact model number of the dryer for specific troubleshooting and repair advice if you need further assistance and for the exact part numbers.


May 27, 2010 | Whirlpool LER4634J Electric Dryer

1 Answer

Upper oven light is not on when thermostat is on.Elements not hot


call the manufacturers toll free number, some units no longer have 'fuses' built in. When you say upper oven light, a light is on only when you push the light option. OR do you mean the upper element is not turning red while heating?

Sep 03, 2009 | Jenn-Air...

1 Answer

I just got my power restored at my house and I can not get my a/c to turn on actually nothing on the thermostat turns on or lights up


You might look at your furnace control board see if there is a control fuse blown, should be a small 3-5 amp fuse can be picked up at a auto store

May 15, 2009 | Honeywell Electronic Programmable...

1 Answer

Lights inside are on but no fan or compressor, is there a fuse?


No a refridgerator does not have a fuse, it could be that your thermosta has gone, the wires from the back of the fridge come through the back to the thermostat, the lights work on a different poer supply ie they are not connected to the thermostat, try take the power directly from your outlet to the compressor at the bottom of the fridge, the wires work as follows, you have 3 a earth a live and a neutral, the live goes up to the thermostat and light, but there are 2 lines, 1 for the light 1 for the thermostat, then the thermostat has a line which goes down to the compressor and 1 to the defroster, the line to the compressor then turns it on and off when the unit reaches the tempreture desired, so it is most likely a split in the wire or your thermostat has gone. however i would not suggest testing anything if you are not expirienced in working with electrical systems, however should you wish to connect the live wire straight to the compressor to see if it is the thermostat or a split in the wire, always remember to turn the power off and unplug the unit. good luck and i hope this helps

Dec 11, 2008 | Whirlpool 25.6 cu. ft. Side-by-Side...

1 Answer

My air conditioner doesn't turn on, what do I look for?


If your room air conditioner doesn't go on at all: 1) Check the power source first: be sure it's plugged in and turned on. 2) Then check the outlet by unplugging the air conditioner and plugging in a light that works (only for standard-voltage models--do not plug a light into a 220/240-volt receptacle!). 3) If the light doesn't go on, the circuit has probably overloaded--check the electric panel or fuse box and reset the breaker or replace the fuse. 4) If the light works, it's likely that the air conditioner's switch is faulty or the thermostat needs adjustment or repair. 5) Be sure the thermostat is set to "cool" and below room temperature. 6) Refer to the manufacturer's instructions for thermostat repair. If adjusting or repairing the thermostat doesn't solve the problem, unplug the unit and call an air conditioning technician.

Jan 18, 2006 | Haier Energy Star ESA3183 Air Conditioner

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