Radiator fan switch for automobile

Spare: Radiator fan temperature switch original

Information - Radiator fan switch

Fan switch sensor: replacement and selection

When and why a fan switch sensor needs replacement

The fan switch sensor has no specified lifetime limit. Most often replacement is performed after contacts oxidation.

Ingress of water in the engine compartment can be the cause of sensor defects. Influence of moisture affects contacts condition negatively.

Part defects can be indicated by unprompted activation of the fan when the ignition is turned on. Moreover, the fan stops switching on if the sensor is broken. Due to this temperature of the cooling liquid increases leading to engine overheating. Readings of a corresponding dashboard indicator show this.

It is recommended to visit a service station for part replacement. Cooling liquid should be drained before demounting of the radiator fan switch. In order to do this safely, you need a special coolant exchanger machine. Also, wires which supply electric current to the part need be to disconnected before servicing. A seal, which is often sold in a kit should be installed together with the sensor.

How to select a fan switch sensor

According to operation principle sensors are divided into three main types.

A reservoir filled with wax is a basic element of the first type. It expands when heated and moves a pusher, which in turn activates the fan. The working element of devices of the second type is a bimetallic plate. It changes its shape when heated, which leads to closing a contact and, as a result, to activation of the fan. Electronic devices with a thermistor belong to the third type. Their operating principle is based on changes in thermistor electric resistance caused by changes in temperature. This is monitored by an electronic control module, which sends corresponding signals to the fan, turning it on or off.

Fan switch sensors for various car brands are produced by such manufacturers as Metzger, Vemo, Meyle, Facet. A required unit is selected in accordance with the car brand, model, production year as well as engine specifications and type of the fan installed. Pay attention that a certain temperature of sensor activation is specified for each car.

Size and pitch of the thread, quantity of connectors are important for proper installation of the part. Moreover, sensors can vary by mounting location. Often the part is mounted on the cylinder block, however, in some cars it is fastened in the lower part of a radiator.

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Temperature Switch, radiator fan for vehicles with/without air conditioning for hot climate zones (CALORSTAT by Vernet, TS6840) -22%
Temperature Switch, radiator fan | CALORSTAT by Vernet TS6840 Article №: TS6840
CALORSTAT by Vernet Temperature Switch, radiator fan TS6840
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  • Shut-off Point [°C] 79
  • Thread Size M22x1.5
  • Technical Information Number Circuit N.O.
  • Condition  New
Details
Temperature Switch, radiator fan with seal (METZGER, 0915190) -22%
Temperature Switch, radiator fan | METZGER 0915190 Article №: 0915190
METZGER Temperature Switch, radiator fan 0915190
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  • Number of Poles 2
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  • Housing Colour Blue
  • Has the same colour as the orginal part Yellow/Blue
  • Supplementary Article/Supplementary Info with seal
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Details
Temperature Switch, radiator fan Manual Transmission for vehicles without air conditioning (CALORSTAT by Vernet, TS1899) -22%
Temperature Switch, radiator fan | CALORSTAT by Vernet TS1899 Article №: TS1899
CALORSTAT by Vernet Temperature Switch, radiator fan TS1899
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  • Shut-off Point [°C] 87
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Temperature Switch, radiator fan DS (JP GROUP, 1194001600) -22%
Temperature Switch, radiator fan | JP GROUP 1194001600 Article №: 1194001600
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  • Switch-on point [°C] 85
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Temperature Switch, radiator fan Automatic Transmission for vehicles without air conditioning (CALORSTAT by Vernet, TS1292) -22%
Temperature Switch, radiator fan | CALORSTAT by Vernet TS1292 Article №: TS1292
CALORSTAT by Vernet Temperature Switch, radiator fan TS1292
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  • Shut-off Point [°C] 82
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Temperature Switch, radiator fan with seal ring, with lock tab (MAXGEAR, 50-0176) -22%
Temperature Switch, radiator fan | MAXGEAR 50-0176 Article №: 50-0176
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  • Supplementary Article/Info 2 with seal ring, with lock tab
  • Operating voltage [V] 12
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  • Colour Black
  • Switch Point [°C] 91
  • Thread Size M22 x 1,5
  • Shape triangular
  • Condition  New
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Temperature Switch, radiator fan for vehicles without air conditioning Rectangular (CALORSTAT by Vernet, TS1628) -22%
Temperature Switch, radiator fan | CALORSTAT by Vernet TS1628 Article №: TS1628
CALORSTAT by Vernet Temperature Switch, radiator fan TS1628
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Over 100 items in stock
  • Shut-off Point [°C] 92
  • Thread Size M22x1.5
  • Technical Information Number Circuit N.O.
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Details
Temperature Switch, radiator fan (ERA, 330273) -22%
Temperature Switch, radiator fan | ERA 330273 Article №: 330273
ERA Temperature Switch, radiator fan 330273
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  • Number of connectors 2
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Details
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