Melted heater relay

[RedRocket]

So I have a 04 vibe. Alternator started slinging grease so I opted to replace it before it went completely bad. Put a new alternator on, first drive, I turned the ac on, it took a second to come on, came on and blew for about a seconds then went out and wouldn't come on. After a little research I found out where the heater relay was located. Got it out only to realize it was melted/burnt. I checked the voltage at the alternator with the car running and it read 14volts. I then checked the hot wire for the heater relay and it was reading 14.3volts. Is this to much? Is my new alternator over charging?

[andrewclaus]

14.4 Volts is pretty common for alternator output when charging.

The relay burned either from dirty contacts or an overload in the blower motor circuit.