Part number: 923/10103
Number of positions: 4 (0–1–2–3)
Number of pins: 4
Brand: Aftermarket
High-quality rotary blower switch, a key component of the heating and air conditioning (HVAC) control panel inside the operator’s cab. It allows selection of four fan speed positions (0–1–2–3), enabling precise control of airflow intensity.
The switch is essential for maintaining operator thermal comfort and effective windscreen demisting, directly contributing to safety and working comfort in all weather conditions. Its robust construction ensures reliable performance even under heavy daily use.
Backhoe loader
Mini excavator
Forklift truck
Telescopic handler
JCB – backhoe loaders: 3CX, 4CX (models produced after approx. 2001)
JCB – telescopic handlers: Loadall (wide range of models)
JCB – mini excavators: selected 8000 series models (e.g. 8014, 8025, 8035, 8045)
JCB – forklifts: Teletruk
The blower speed switch is one of the most frequently used controls in the cab comfort system. Continuous operation leads to natural wear of the internal electrical contacts, which is the most common cause of fan malfunction.
Replace the switch if the blower:
does not work in one or more speed positions,
does not operate at all despite a functional fuse and blower motor,
works intermittently and requires turning or adjusting the knob,
has a loose knob without distinct “click” positions.
Switch malfunctions are often caused by corroded electrical contacts. Before installing a new switch, thoroughly clean the connector in the machine’s wiring harness and use a dedicated electrical contact cleaner, such as HYPTRON, to ensure proper connection and prevent overheating.
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High-quality rotary blower switch, a key component of the heating and air conditioning (HVAC) control panel inside the operator’s cab.

















