No Heat in my dryer - Fuse????
I have the Kenmore Elite H3 Limited Edition Dryer. The dryer has power but no heat.
Could the reason be something as simple as a fuse?
Where is(are) the fuse(s) located so I could have a look and how do you test and replace?
Please help -
I cannot find any tech info on your unit.
Often the C stands for Canadian so tech info is not available.
If it is an electric dryer I would start by checking the power.
The motor, control board and interior light all work off 120 volts buit the heaters require the full 240.
Try flipping the breaker off/on slowly a couple times, sometimes you can loose half the line without actually tripping the breaker.
If this does nothing, check the voltage at the plug
L1 to L2 should be 240 volts
L1 to Neutral and L2 to Neutral, both should be 120 volts.
Unplug the unit and check the wires at the terminal strip in the machine to make sure none are loose or burned out
Check the power at the terminal strip.
Be careful as 240 volts is lethal !!!
There are many things that can cause a no heat symptom in an electric dryer, here is a list of possible causes in order of likelihood or ease of access.
An open fuse/breaker in the house fuse panel.
There are 2 fuses or breakers for the dryer, both must be good in order for the dryer to function properly. If one is open, it is possible for the dryer to run but not generate heat. In the case of breakers, try resetting them as sometimes one of the two can open but not physically tip the mechanical lever.
The illustration above shows how the main dryer motor and the timer's motor can continue to operate with one of the two fuses for the dryer open as they operate on 120 volts only. The working circuit could also include a light which is not illustrated.
An open thermal fuse in the dryer.
Some models use a thermal safety limiter or thermal fuse which could open the circuit to the heat element. These are used to prevent a runaway or over heat condition and are often found mounted to the blower or heater element housing (see the links below for examples). These devices are a fairly current development and may not be found on very old dryers.
Please Note! Note: If this is the cause of your current problem (pardon the pun), I strongly suggest you check the vent for obstructions and ensure its length meets the manufacturers recommended limitations, the shorted the better. Failure of this part could be the first indication of a potential fire hazard in the dryer!
The element coil is burnt out.
Dryer elements are bare wires coiled like springs, when they fail the wire will break opening the circuit. This breakage could be intermittent, only opening as the element expands as it heats. Sometimes the element coil has to be physically checked for breakages, especially where the coil goes through ceramic insulator which could hide a breakage from plain view.
Depending on the brand and style, the replacement element may be just the coiled wire that has to be mounted into the original element housing. On other models the element assembly comes already mounted on a frame that then in installed into the element housing or directly into the dryer. Whichever the case, the element coil has to be replaced not just joined together using connectors.
These can include the heat selector switch mounted on the console panel, one of the thermostats (from 2 to 5 on some models) mounted in various locations of the internal dryer ducting, the motor switch or the heater contacts of the timer or a 'heater relay' on newer models with an electronic heat control mechanism.
A link below explains dryer thermostat's operation in detail.
A burnt wire or wire connector.
Replace the burnt wire connector and/or wire and inspect the component terminal it was attached to. If any sign of charring or discoloration are visible on the component's terminal or repeated failures occur at that same location, replace the component the terminal is part of. Such items can include the main power junction terminal block (very common), thermodiscs (thermostats), heat selector switch, centrifugal switch (on the motor) or the timer.
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