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.
Vodafone UK Contact Number - 0844 800 3116. Call the Vodafone contact phone number to speak with a member of their customer services department and discuss either the service you are currently receiving or one that you would like to receive.odafone Customer Care Service and Support Helpline Number 0844 800 3116. VN:F [1.9.22_1171]. Rating: -1 (from 3 votes). VN:F [1.9.22_1171]. please wait... Rating: 4.6/ 10 (76 votes cast). Calls cost 7p per minute plus your phone companies access charge.