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.
The following numbers or those which are typically free to call from a Vodacom number, if your phone is out of reach, you may call these numbers at any other network and standard rates will apply. 082 111 â General Vodacom queries. 082 155 â Vodacom data bundle queries.187 â Prepaid information hotline. 1181 â Call this number to quickly check or change you current tariff plan. 082 1959 âVodacom Contract Upgrade Department. 124 â To blacklist or report a stolen phone, you can call this Vodacom customer care line.