Hi, I’m currently taking electronics classes but still have a lot to learn. I have fan that is for a boiler at work it has line voltage and pwm motor controlled being controlled by the boilers computer. It’s a newer style boiler. The old fan started sparking and Looks like some caps blew on the circuit on the fan. I can’t figure out whats wrong. I bought a new fan and ran it for a couple mintutes and it looks like through the fins , a cap is leaking right away. Here is a picture of of the connecter and little schematic of the inputs and outputs.With the connector unplug I read 60v to chassis ground ac at the wire labeled pwm ground. With it disconnected should that wire read zero??
does anybody have information on this type of pwm controlled motor works? I can’t find any information myself. Thank you for any suggestions
does anybody have information on this type of pwm controlled motor works? I can’t find any information myself. Thank you for any suggestions
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