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2007-05-20 00:54:26
2007-05-20 00:54:26

Could be switch Could be low speed relay Could be low speed winding on fan motor Could be fan motor resistor Uses 2 relays (one for High speed and other for lower speeds Motor has 2 windings one for High speed and otheer for lower speeds


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The auxiliary contact is connected in parallel with the 'start' pushbutton switch in the control circuit. When the 'on' button is pressed, the auxiliary (together with the main contacts) close, bypassing the 'on' button, and keeping the relay's operating coil energised, and maintaining the contacts in the closed position. A 'stop' pushbutton switch must be placed in series with the 'start' switch in order to break the control, de-energising the operation coil, and opening the main and auxiliary contacts.

In electronics, a switch is an electrical component that can break an electrical circuit, interrupting the current, or diverting it from one conductor to another. The most familiar form of switch is a manually operated electromechanical device with one or more sets of electrical contacts. Each set of contacts can be in one of two states: either 'closed' meaning the contacts are touching and electricity can flow between them, or 'open', meaning the contacts are separated and nonconducting.A switch may be directly manipulated by a human as a control signal to a system, such as a computer keyboard button, or to control power flow in a circuit, such as a light switch. Automatically-operated switches can be used to control the motions of machines, for example, to indicate that a garage door has reached its full open position or that a machine tool is in a position to accept another workpiece.

I know this seems obvious but you didn' mention checking the ignition switch. Possibly the start contacts are ok but the run contacts are open. This will result in the symptoms you mention.

meaning its normally position of switch or contact,and during activating the device,it will become close..

A volt free contact is a set of contacts that uses a voltage source from another location. The contacts are used to tie two individual pieces of electrical equipment together so the action on one will cause the other piece of equipment to operate. It is just a new way of using the older terminology "dry contacts". An example of use is the diesel start contacts on an automatic transfer switch. When the transfer switch is in the utility (hydro) position the diesel start "dry contacts" located in the transfer switch are open. On a power failure the transfer switch disconnects from the utility and connects to the generator position. When the transfer switch moves to the generator connect side the "dry contacts" , or volt free contacts, in the transfer switch close. This allows a voltage from the generator control panel (usually 24 volts DC) to return to the start relay located in the generator control panel. This relay engages the starter and starts the diesel generator. On return of utility power the reverse action takes place and the volt free contacts return to their normal state of normally open.

No. A 6 amp switch is rated at 6 amps. A 12 amp motor will melt the contacts in the switch mechanism.

A contactor is an electronically controlled switch that has a coil and contacts. The contactor coil moves the contacts into position by energizing the contactor. A contactor transmits a current between a source and load.

try removing the light switch......there are contacts inside the switch that are positioned on a spring sometimes these springs pop out of position disabling contact. the switch comes out easy and if you take a small flat head screw driver you can separate the switch and see these contacts. be very careful aponn separating the switch so you don't lose any small pieces. if the contacts and springs appear to be in the right positions then its time for a new switch.

The wiper motor plug that goes into the back of the switch has 3 contacts: park, fast, and slow. The switch has 5 contacts, because two other wires come into it. One takes +12V from the fuseblock, and one goes to the washer pump. The rotary part of the switch has no position where contacts are open. When you have the switch "off", the 12V contact is connected to the park conductor of the motor.

The cruise control switch should be on the turn signal control arm. There is a three position switch; off, on and resume are the three positions; "off" to your left, "resume" to the right and "on" in the center when you are sitting in the drivers seat looking at the switch. The switch needs to be in the on position and when you reach the speed you wish to "cruise" push and briefly hold in the button on the end of the turn signal control arm; the "set" button. This should engage the cruise control, to accelerate you can push the three position switch to the resume position until you have reached the speed you want to change to and to decelerate you can push the set button. Do not relase the resume switch to quickly, it is a spring loaded position, a momentary switch, and the spring may have enough strength to push the switch past the on position to the off position if released quickly. The resume can be used to return to a set speed after braking or clutching as touching the brakes or the clutch if a manual transmission model will disengage the cruise control. Hope this helps.

A switch has moving contacts, name them ?

Single-pole refers to a switch that only has one set of contacts to open or close. A double-pole switch has two sets of contacts that are opened or closed at the same time. A double THROW switch has contacts connected in both directions, i.e., either A is connected to the common or B is connect to the common. These are popularly used in pairs as a "three-way switch" by which you can turn a central light on from either of two locations (3-way because it is either OFF, ON at one end or ON at the other). A double-pole, double-throw switch connects two different sets of center common contacts to one of two sets of A or B contacts. Both poles on A are connected to common in one switch position and both poles of B are connected to common in the other switch position. These switches are useful for adding a third location to a 3-way switch circuit, among other things.

Just remember a three way switch has no labeled on and off position. There are three power contacts. One is the center pole and the other two are separate contacts that connect to the center when switched. So just connect the wires to be switched to the center pole and pick either of the othe poles for the other side of switched wire. Mount switch so up position is ON.

use a continuity tester on the switch itself just hold contacts on tester to contacts on switch and if it reads with a beep or a light your switch is good pending the tester is accurate

Headlamp switch contacts need adjusting switch has 5 contacts,

Relatively simple. There are two power contacts, you wire the two wires for the line you want to interrupt or connect to these contacts. this is for the simplest type, SPST, one set of contacts to switch a power line on when the control signal is on. There are more complicated contactors with multiple sets of contacts. There are two connections for the control circuit which are typically low voltage AC or DC. Connect these to the control signal, ie, the signal you will use to turn the contactor on or off.

Bad switch, bad wiring, ECM fault. If your jake brakes still work, you can rule out the accelerator position switch. The brake position switch might be reading that the brake is depressed when it isn't.

No it is not hard to tell them apart. A Single Pole Single Throw switch will go directly from the on position to the off position breaking the circuit. This is the type of switch that is used in homes for lighting control. A Single Pole Double Throw switch will usually have a stop indent which is the off position mid way through the throw. This is the switch that is used for a transfer switch when using a stand by generator in the system. The full up (on) position is usually connected to utility power. The full down (on) position is usually connected to the stand by generator.

It means that the low pressure switch is open. Check the heat pump schematic to see if it is supposed to be an open or closed switch. Schematic electrical drawings are drawn in the de energized position. This means that when there is no voltage applied to the device, this will be the position of relays and contacts.

A single pole single throw switch is like the one on your wall in your residence. The switch has two wire terminal points. In the off position the contacts inside the switch are open and prevents the circuit current from flowing. In the on position the contacts inside the switch are closed and that allows the circuit current to flow and the device that is connected in the circuit to operate. In the electrical trade these types of switches are identified by the letters SPST.

let's insert a transistor in place of the switch to show how it can control the flow of electrons through the lamp. Remember that the controlled current through a transistor must go between collector and emitter. Since it is the current through the lamp that we want to control, we must position the collector and emitter of our transistor where the two contacts of the switch were. We must also make sure that the lamp's current will move against the direction of the emitter arrow symbol to ensure that the transistor's junction bias will be correct as in Figure below(b).

If you switch it from attack position to defence position you can't because no monster can attack from defence position except from "Total defence shogun". But if you switch it from defence position to attack position then you can attack

Either switch brands or clean them with eyedrops

dirty contacts on switch. You can replace the whole switch with expense or have someone who's technically inclined pull the switch apart and clean the contacts to bare metal.

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