kraft
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Everything posted by kraft
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Installed new fan diode, bingo, fan works as it should!
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If I use the original power feed and a separate ground the fan runs fine. If aI use the original power feed and bypass the diode,the ground connection to the wire past the diode, works good.
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I found it, it won’t let current through. I jump around it and fan works as it should. I ordered a 25 amp diode from cat for the 500 machines. It should work. Thanks
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Temp sensor is stuck closed. Just checked voltage across r/b and b/w wires feeding sensor and had voltage . Plugged in temp sensor to feed plug and fan wont come on. Plugged temp sensor into voltage direct from battery and fan came on using the stuck sensor harness. cleaned all ground connections also. also just checked amp going to fan harness when fan running and is 5.16 amps when running top speed. The voltage across b/w and b/r plug is 11.87. Voltage across b/r wire and a separate chassis ground to fan ground is 12.8 volts. there is a diode on the b/w wire in the harness, possible kaput?
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Temp sensor is stuck closed. Just checked voltage across r/b and b/w wires feeding sensor and had voltage . Plugged in temp sensor to feed plug and fan wont come on. Plugged temp sensor into voltage direct from battery and fan came on using the stuck sensor harness. cleaned all ground connections also.
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Took temp sensor out, permanently stuck closed. Brand new from caloric.
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No, temp is good. To sensor out and it stays closed.
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I have fan issues , fan will not come on when powered up from factory plug. The fan will run when powered directly from battery or when + side of feed plug is used and fan is grounded to frame separately. Replaced fan temp sensor with Caltric one. Also when powered from battery into the temp sensor plug the fan will start when warmed up, but will not shut of till power is off from battery feed. Then fan stays off till temp reaches 90 and will start again. New battery also. Any thoughts out there? Checked voltage across factory feed plug, lower voltage than from + feed on plug to chassis ground. Diode issues?
