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.
Mediacom Online Technical Support. Technical support and customer service telephone numbers for Mediacom Online. 1  To verify status of a pending high speed Internet order. 2  1-866-755-2225. 3  For customer service or technical support. 4  1-866-755-2225. 5  For business accounts. 6  1-866-755-2225.