[mailto:soaring@bigpond.net.au]
[http://www.lmsoft.com/PowerByLMSOFTEN]
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[./vb_commodore_faults.html]
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[./vl_commodore_faults.html]
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[./v6_efi_conversions.html]
[./v6_ecotec_efi_conversions.html]
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[./wiring_harnesses.html]
[./modified_memcals.html]
[./v6_conversions.html]
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[./vr_manual_conversions.html]
[./speedo_adapters.html]
[./engines.html]
[./engine_building.html]
[./transmissions.html]
[./exhausts.html]
[./brakes.html]
[./differentials.html]
[./suspension.html]
[./fuel_systems.html]
[./electric_windows.html]
[./electronic_dashes.html]
[./interiors.html]
[./vs_calais_ute.html]
[./vr_calais_ute.html]
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[./vl_calais_pro.html]
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[./vk_wagon.html]
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[./1972_dodge_phoenix.html]
[Web Creator] [LMSOFT]
VK Commodore Air Con Issues
Phoenix Mechanical
Soaring

Slide control switch - The fan speed slide control switch is responsible for variable control of the fan speed motor. The circuit board of the switch distorts due to current draw and age and can stop working in certain positions, or sometimes all together. GMH made upgraded circuit boards which were thicker and more durable.

Fan Speed switch - The fan speed control switches are a common failure, and may not work on all speeds. Another item that will inhibit fan speed operation is the fan resistor. Commodore variable fan speeds are achieved by routing the supply power through resistors, similar to light bulb filaments, but they vary in size. A resistor each for speeds 1, 2 and 3, and the 4th speed is unrestricted. The resistor block houses these filaments, and is mounted in the air conditioning box. This ensures that air flows through the filaments when the fan is being used, to prolong the life of the filament. Unfortunately, like light globes, these filaments break. As each filament breaks, the corresponding fan speed will be lost. Solid state units have replaced the filament style and are more durable.