dr_phibes
19th January 2025, 01:55 PM
Hi
I have replaced the old blower pack with an OEX one, where the speed is controlled by switching 12V across 3 wires (with another going to ground). This avoids using the original resistor. However it needs a switch and/or relay array to retain variable flow.
I haven’t measured draw yet but expect to be under 10A. I’m hesitant to switch that much though the switch though, given arcing etc. But using relays for 4 positions seems overkill.
I could just replace the entire switch with something more robust?
Any suggestions?
I have replaced the old blower pack with an OEX one, where the speed is controlled by switching 12V across 3 wires (with another going to ground). This avoids using the original resistor. However it needs a switch and/or relay array to retain variable flow.
I haven’t measured draw yet but expect to be under 10A. I’m hesitant to switch that much though the switch though, given arcing etc. But using relays for 4 positions seems overkill.
I could just replace the entire switch with something more robust?
Any suggestions?