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| | | | Joined: Mar 2005 Posts: 92 Wrench Fetcher | | Wrench Fetcher Joined: Mar 2005 Posts: 92 | Can I run an original 6v heater blower switch with a 12v system and 12 blower motor without problems? TIA
Steve O
('50 3100) | | | | | Joined: Nov 2001 Posts: 1,519 'Bolter | | 'Bolter Joined: Nov 2001 Posts: 1,519 | Does the switch know the difference? Not bein a smart a$$,but i really dont think theres a difference. | | | | | Joined: Jul 2003 Posts: 586 Shop Shark | | Shop Shark Joined: Jul 2003 Posts: 586 | As Delux54 states, the switch won't make a difference. The 6V switch is acually heavier gauge so that it can handle the extra amperage of a 6V. 12V = higher volts, lower amps. 6V = lower volts, higher amps. Cecil......... | | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | My old switch had a slow speed setting that used a resistor. That resistor would be different for 12 V. If you use it for just off and on then there would be no problem. | | | | | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | I have used a few different old 6V aftermarket resistor type multi speed blower switches with a new 12 volt blower motor and 12 volts.
Worked fine for me.
Grigg
Last edited by Grigg; 12/07/2007 8:12 PM.
| | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | I would think that they may work fine but the design of a 12 V unit would use a different resistance. | | | | | Joined: Aug 2007 Posts: 156 Shop Shark | | Shop Shark Joined: Aug 2007 Posts: 156 | To really determine the answer you need to know two things. How many amps does the 12 volt motor draw at full load verses the number of amps the 6 volt motor drew at full load. The second thing would be more of a personal choice. Is the fan speed at the low and medium switch settings on the original switch acceptable to you?
My 12 volt replacement motor draws 3.8 amps at full load. Does anyone know how many amps the original 6 volt motors drew? I can safely use the original 6 volt switch if the motor drew 8 or more amps. | | | | | Joined: Mar 2005 Posts: 92 Wrench Fetcher | | Wrench Fetcher Joined: Mar 2005 Posts: 92 | Thanks for the feedback, I am no electrical guy. | | |
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