A standard cooling fan is essentially a bladed DC motor. By varying the voltage input across the acceptable range for a fan, the speed of the fan will increase (to added voltage) and decrease (to reduced voltage); a faster fan means more air moved and thus a higher heat exchange rate.
Contact them toll-free from a Vodacom cellphone by dialing 111. Contact them toll-free from a Telkom phone by dialing 0800-111-234. Note: Telkom toll-free numbers are generally NOT toll-free when dialed from a MTN/Vodacom cellphone.
Contact Vodafone. Contact Vodafone on their 24-hour customer service phone number 0843 504 3747. 191: If you are an existing Vodafone customer and calling from your mobile, simply dial 191, which is a free number if you are calling from a phone with a Vodafone contract.Live Chat: If you are phoning from abroad, then instead of phoning Vodafone on 0044 843 504 3747, it may best if you use the Vodafone live chat.i David, please phone the Vodafone customer service team on 0843 504 3747 and they should be able to help over the phone, make sure you have all your details to hand when calling.