Auxfan turns OFF when A/C is ON

[ax30g]

Hi, Tsikoteers.

Need your help on my car.

Laging nagooverheat ang sasakyan ko. Pag naka-off ang aircon malaks ang fan pero once I-ON mo sya nmamatay yung auxfan which causes overheating.
At first akala ko fan ang salarin so yun pinalitan ko but still ganun pa din ang sira. Bagong overhaul yung sasakyan din.

Possible kaya na electrical ang problem? Baka meron jan same na experience before.

Thanks!

[dr. d]

Hi, Tsikoteers.

Need your help on my car.

Laging nagooverheat ang sasakyan ko. Pag naka-off ang aircon malaks ang fan pero once I-ON mo sya nmamatay yung auxfan which causes overheating.
At first akala ko fan ang salarin so yun pinalitan ko but still ganun pa din ang sira. Bagong overhaul yung sasakyan din.

Possible kaya na electrical ang problem? Baka meron jan same na experience before.

Thanks!

the electrical connections to the aux fan are probably incorrect.
a decent auto electrician-mechanic, should be able to correct the problem.

[kisshmet]

Hi, Tsikoteers.

Need your help on my car.

Laging nagooverheat ang sasakyan ko. Pag naka-off ang aircon malaks ang fan pero once I-ON mo sya nmamatay yung auxfan which causes overheating.
At first akala ko fan ang salarin so yun pinalitan ko but still ganun pa din ang sira. Bagong overhaul yung sasakyan din.

Possible kaya na electrical ang problem? Baka meron jan same na experience before.

Thanks!

Inverted logic ang current set up ng sasakyan mo

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[ax30g]

Inverted logic ang current set up ng sasakyan mo

Sent from my GT-P3110 using Tsikot Forums mobile app

Is this something that could be fixed in a regular talyer?

[ax30g]

Is this something that could be fixed in a regular talyer?

Can you give me a background on inverted logic?

All I know is the moment I bought the aux fan, sinaksak ko lang yung source ng kuyente. Never ko nmn ginalaw yung connections sa old fan ko bigla nalang nagoverheat. I've been receiving suggestions like check your thermostat, your relay and first time marinig yung inverted logic.

Sorry for being such a NOOB on this.

BTW, my car is a ford escape.

[oj88]

What is the make/model/year of the car?

It could be any of the fan control relays,

On my 08 Civic FD, it uses three relays to control the two radiator/AC fan blowers.... two are SPST and one is SPDT.

It has three states.

1. Off - All three relays are off
2. Low Speed (feedback logic based on ECT) - One relay is active and the two fan motors are effectively connected in series (each fan is running at approx. 6V DC)
3. High Speed (feedback logic based on whether the A/C compressor is engaged) - All three relays are active and both fans each have a 12V supply

These are all controlled by the ECM. If the problem is not the relay, check the wiring for any cuts or damage done while the car was being serviced. It's unlikely but if all else checks out, the ECM could be at fault.

[ax30g]

Had my aux fan checked yesterday. Sira na dw yung module kaya they suggested na iderecho nalang sa fan yung supply ng kuryente. Safe ba yun?
dba masisira kaagad yung fan ko? Parang di ako convinced sa sinabi ng electrician since 4 mos palang yung bago kong fan.

Is it safe na iderecho nalang sa sa fan yung supply ng kuryente?

TIA

[kisshmet]

Can you give me a background on inverted logic?

All I know is the moment I bought the aux fan, sinaksak ko lang yung source ng kuyente. Never ko nmn ginalaw yung connections sa old fan ko bigla nalang nagoverheat. I've been receiving suggestions like check your thermostat, your relay and first time marinig yung inverted logic.

Sorry for being such a NOOB on this.

BTW, my car is a ford escape.

Baligtad ang logical operation ng aux fan mo..dapat bubuga ng hangin ang fan mo kapag nagsindi ka ng aircon at stationary ang sasakyan mo kasi iinit ang condenser mo

Aandar din dapat ang aux fan mo kapag uminit ang radiator ng sasakyan mo

So the logical operation ng aux fan mo ay OR.. kapag uminit ang condenser the FAN should be ON..kapag uminit ang radiator the fan should be ON..kapag sabay uminit ang condenser at radiator ng sasakyan mo dapat ON ang fan

Titigil lang ang FAN kapag lumamig na ang condenser at radiator mo..hindi dapat tumigil ang fan kapag mainit pa ang condenser OR radiator dahil delikado para sa sasakyan ang sumobra ang init ng radiator OR ng condenser kasi tumutunaw ng bakal ang init

Radiators and condensers are made of aluminum tubes at aluminum fins

Additionally, its not a good idea to keep the fan ON ALWAYS kasi it will wear your aux fan quickly

Kapag tumatakbo na ang sasakyan yun hangin sa harap tatagos sa radiator at condenser fins. Para ka ng may extra fan sa harap ng sasakyan mo. That will help cool your car so the aux fan can rest and prolong its service life
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[robot.sonic]

Baligtad ang logical operation ng aux fan mo..dapat bubuga ng hangin ang fan mo kapag nagsindi ka ng aircon at stationary ang sasakyan mo kasi iinit ang condenser mo

Aandar din dapat ang aux fan mo kapag uminit ang radiator ng sasakyan mo

So the logical operation ng aux fan mo ay OR.. kapag uminit ang condenser the FAN should be ON..kapag uminit ang radiator the fan should be ON..kapag sabay uminit ang condenser at radiator ng sasakyan mo dapat ON ang fan

Titigil lang ang FAN kapag lumamig na ang condenser at radiator mo..hindi dapat tumigil ang fan kapag mainit pa ang condenser OR radiator dahil delikado para sa sasakyan ang sumobra ang init ng radiator OR ng condenser kasi tumutunaw ng bakal ang init

Radiators and condensers are made of aluminum tubes at aluminum fins

Additionally, its not a good idea to keep the fan ON ALWAYS kasi it will wear your aux fan quickly

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Possible na may nabaliktad na polarity sa pag wire?

[kisshmet]

^It can be fixed by a competent electrician..if the regular talyer have a knowledgable electrician..then let them fix your problem

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[markspecialist]

Hi, Tsikoteers.

Need your help on my car.

Laging nagooverheat ang sasakyan ko. Pag naka-off ang aircon malaks ang fan pero once I-ON mo sya nmamatay yung auxfan which causes overheating.
At first akala ko fan ang salarin so yun pinalitan ko but still ganun pa din ang sira. Bagong overhaul yung sasakyan din.

Possible kaya na electrical ang problem? Baka meron jan same na experience before.

Thanks!

anong unit nyo sir baka maka help po
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