Tamaraw FX aircon - hidden part question

[pongees]

Chineck ko recently ung blower saka evaporator ng aircon ng fx ko sa likod/rear. Kinailangan kong tanggalin ung upuan sa likod para ma-check na rin ung dinadaanan ng hangin. Napansin ko kasi sobrang hina ng hangin sa likod. Dun ko nakita na may singaw ung isa sa tube na daanan ng hangin, lumuwag na pala ung kabit dahil sa kalumaan. Tapos meron akong nakita na device na nakakabit sa mismong dinadaanan ng hangin. pati kasi un matatanggal na kaya. nung tinanggal ko, may springs sya tapos nakakabit sa wiring. Di ko lam kung switch din sya or sensor. Sinubukan ko tanggalin tapos in-ON ko ung aircon, di umaandar ung blower sa Number 1 and 2. Umandar lang nung nasa Number 3 ung switch.

Para san po kaya iyon? Ano po mangyayari kung di ko na sya ikabit? Di naman po siguro thermostat un ska la namang solenoid valve ang fx. Patulong naman po sa mga aircon experts natin. Ttry ko po magpost ng picture mya.

[jick.cejoco]

Chineck ko recently ung blower saka evaporator ng aircon ng fx ko sa likod/rear. Kinailangan kong tanggalin ung upuan sa likod para ma-check na rin ung dinadaanan ng hangin. Napansin ko kasi sobrang hina ng hangin sa likod. Dun ko nakita na may singaw ung isa sa tube na daanan ng hangin, lumuwag na pala ung kabit dahil sa kalumaan. Tapos meron akong nakita na device na nakakabit sa mismong dinadaanan ng hangin. pati kasi un matatanggal na kaya. nung tinanggal ko, may springs sya tapos nakakabit sa wiring. Di ko lam kung switch din sya or sensor. Sinubukan ko tanggalin tapos in-ON ko ung aircon, di umaandar ung blower sa Number 1 and 2. Umandar lang nung nasa Number 3 ung switch.

Para san po kaya iyon? Ano po mangyayari kung di ko na sya ikabit? Di naman po siguro thermostat un ska la namang solenoid valve ang fx. Patulong naman po sa mga aircon experts natin. Ttry ko po magpost ng picture mya.

pongees,
that my dear watson is the blower resistor responsible for varying the blower motor speed. the more resistance you put in the line, the less current goes through the motor thereby reducing blower motor speed. if you connect the motor direct or bypass the resistor, the motor runs at full speed. the reason why it is in the air duct is to cool it off lest the resistor will meltdown
jick

[pongees]

thanks jick! Is okay if I replace the resistor block/pack with lower resistor ratings para mas lumakas ng konti buga (at least for number 1 and 2 settings ng fan). Enough lang para mas maramdaman. Masyadong mahina ung number 1 eh.

By the way, natanggal na ung ceramic dun sa wire wound kaya nagiinit na talaga ung resistors. Not sure if that affects the cooling of my rear AC when it was still there. Do you also know kung nasaan ung resistor ng blower sa harap ng fx? Check ko lang tanggal na rin ung ceramic nun.

Currently, my blower is set at number 3 because I removed the resistors. I plan to put it back one of these days.

[jick.cejoco]

thanks jick! Is okay if I replace the resistor block/pack with lower resistor ratings para mas lumakas ng konti buga (at least for number 1 and 2 settings ng fan). Enough lang para mas maramdaman. Masyadong mahina ung number 1 eh.

By the way, natanggal na ung ceramic dun sa wire wound kaya nagiinit na talaga ung resistors. Not sure if that affects the cooling of my rear AC when it was still there. Do you also know kung nasaan ung resistor ng blower sa harap ng fx? Check ko lang tanggal na rin ung ceramic nun.

Currently, my blower is set at number 3 because I removed the resistors. I plan to put it back one of these days.

pongees,
the blower resistor for the front a/c unit is in the blower housing itself again to cool it off from thermal breakdown. some nissan sentras use a plate type resistor (no spring like nickel-chromium wire coil) that do not get hot as much as the nichrome type. sure you can vary the resistance to suit your needs. you can even buy these from electronic components stores as long as it has the proper amperage rating, just splice it to where the nichrome wire used to be.
jick

[sherlabs03]

Guys, mayroon na ba sa inyo nag upgrade ng A/C sa FX ninyo? Hingi lng sana ako ng ideas kung ano-anu yung ipapagawa/ipapa upgrade. Yung unit ko is FX97 7K gas.

Ang hina na talaga ng aircon especially pag noon time. Last a/c cleaning was August 2009. Pero kahit after a/c cleaning mahina pa rin.

Salamat.

[shibby75]

I once rode at the back of a friends 1998FX and was amazed on how cold it was. Puno kami and around 2pm in traffic. Kaya pala malamig bagong palit ang Compressor at relocated daw ang condenser ng a/c nya.