Question about 2005 Mazda Tribute

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I have a Pentair pool heater. E04 code

I have a Pentair pool heater. I am getting the error code E04, this is Fan Failure. Does this mean the fan needs to be replaced? If so I only see what is called the blower on the parts break down, is that the fan they speak of?

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  • doleary2 May 07, 2010

    It looks like it sits in front of what they call the heat exchanger

  • doleary2 May 07, 2010

    It looks like it sits in front of what they call the heat exchanger



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Should be the coolant fan thats in front of the raidiator

Posted on May 07, 2010


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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2007 Chevy Cobalt hit by lightning, low speed fan remains on, no ignition

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My radiator coolant fan would not shut off when the engine was turned off so I changed the relay. Everything now seems to be working as it should except that the "Service Engine Soon" stays on...

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DON'T slam the glove compartment, that's near the passenger airbag. Check fuses for the fan, and the motor for the fan. The fan works sometimes, which means power is getting to it, might just need to be cleaned or replaced.

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The fan for the a/c dosnt blow how much trouble is it to replace one in a 2000 impala. and is there such a thing as a web sight with repair guides for cars?

can be a pain,
but would double check that the fuse is not blown, and as well that it is not a failed relay---check in the manual or Haynes for diagram/circuit if has a relay/location.
...if fan failure, would expect to have made noise, or at least acted abnormally before failure (bearings/sleeves, etc).
...and to be clear, by fan you mean the same fan (in the dash) that blows air from the heater, and not the radiator fan that turns on when you turn on the A/C?

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P0172 and P0128 Error Code 2003 Trailblazer 4WD

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U1073 scp code

Hi MaddMD!

This is partly an answer to part of your question, and part clarification request

According to: the U1073 SCP is defined as:
"U1073 SCP (J1850) Invalid or Missing Data for Engine Coolant PCM REFER to Powertrain Control/Emissions Diagnosis (PC/ED) manual"

Okay.... I need to research what exactly the above means, but I also need a little more information from you.
  • What engine do you have?
  • Were there any malfunction indicator lights (MILs)?
  • How did the overheating occur (stopped at idle, going down the road, A/C on or off?), and how drastic was it? (i.e.: Was there loss of engine oil, any significant smoking or steam out of the engine bay, significant loss of power?)
  • Do you know what caused it to overheat? (Low coolant, fan failure, broken belt, water pump problem, stuck thermostat)
  • What prompted you to change the temp sensor?
  • Is it an electric or engine driven radiator fan?
The way you describe the situation now, without considering the code, it sounds like the radiator fan is not moving enough air across the radiator to remove heat from the coolant. Turning the heater on causes the heater core to act as a kind of substirute radiator and thus lowering the engine temp. This can be verified, if the truck is driveable, by going down some open road with the heater on to cool the engine, switching off the heater and then see if the temp comes back up while moving at least 30 mph or if it stays down. If it stays down while moving, try stopping and idling for a couple of minutes and see if the temp then goes hot... If so, the fan is not working as it should and should be looked at. Don't let it get too hot, and see if you can get it to an AutoZone to have them perform a free diagnostic scan and see what OBD-II trouble codes are set.

Get back to me by posting a comment to your problem with whatever further information you can gather and also by sending me an e-mail at so that I'll know to check that information, and in the meantime I'll check with some of my Ford tech friends as to the signicance of the U1073 SCP code.


Jun 19, 2008 | 1999 Ford F150 Regular Cab

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