engine dying due to electric fan

that wire is sufficient, I believe. red is to circuit breaker, then to 30 on relay. purple is to fan, off 87. white is to thermostat, then ground, off 86. it's the blue wire that boggles me, off 85, it only states "+12 volt power source", and at this time, it's hooked to the back side of the ignition switch, on the run side, not accessory. again, thanks for the help Brian, does that help?