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No cooling heat works good the fan does not seem to work on high when it's set to high the compressor ramps up and then slows down running amps are a 6amps design for 9amp. It's 410 refrigerant and I

No cooling but the heat works great also when the fan is on high it seems like it's on low speed the condenser works outside and the fuses are all good

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Check your freon levels or have a tech check them

Posted on Jun 02, 2009

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2 Answers

When i put the tstat on high fan it goes back and forth from high to low


Need to check the cap on the unit it is a silver can may be shorted

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What type of run capacitor do I need for a Ruud AC model UPNJ-031JAZ (outside unit)


Looks like it should be a 35/3 370VAC. If it is not legible on the old capacitor read the data plate on the fan motor and compressor. These should say "uf" or "mfd" rating. Good Luck!!

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Hi i have a roof top LG LS- k1830 HL 18000/19000btu heat & cool mini split air conditioner. my ? is the condenser fan wont run and the after the unit is on for a while the high pressure line does...


the condenser fan will start as soon as the compressor turns on( that is the outside unit)
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Warning: fan locked contact service center for


di pasang kipas baru tapi masih bertuliskan warning fan locked terus mati..projektornya

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My computer fan afb0712hhd. when i turn it on the fan runs fast for a few seconds, then runs slow and the cycle continues. can you tell what is wrong?


Your fan is following the heat pattern of the CPU. As your computer does more stuff, like runs more applications, it has to work harder to make everything go. This creates heat that needs to be cooled by the fan. The fan usually has 2 settings, low, and high. When the CPU reaches a certain temperature the fan will switch into high gear to help cool it down.

Mar 29, 2011 | Computers & Internet

1 Answer

I have a trane XR12 Heat Pump. The cooling fan on the outdoor unit does not run nor does the compressor. The fan motor heats up and hums. I am guessing that the problem is the start capacitor on the fan...


Hello Rich,NO you have a dual capasitor that runs both fan & compressor motors.Shut it down and let it cool off.You need the uf rate numbers & the volt rating of the existing cap (printed on the side)to get EXACT replacement.The wires plug in to the top termanls C, HERM &FAN.Worth fixing good luck.

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Rooftop RV Air Conditioner: replaced capacitor on dometic 59516-531 steal trip...


You need to borrow a clamp on style amp gauge, and check amp draw on black wire in box where hydro wires connect. (PLEASE, be careful, and if not experienced in this type of test, don't try it, due to likelihood of getting a shock. ) If it's the compressor kicking in that's causing the breaker to trip, and capacitor is good, then it's usually a problem with either low incoming (supply) 110-120 AC voltage, which will cause high amperage draw, or compressor on it's way out causing high amp draw. If it's only drawing 15-18 amps, and your tripping a 20 amp breaker, then breaker is getting weak.

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1 Answer

Compaq Presario 3000 incredibly slow firing up, opening up anything. Loud fan all the time too


This advice relates to the Compaq Presario 3000 Notebook series but may also apply to other notebook computers as well.

The heat sink and fan assembly is probably clogged with dust and airborne particles. The clogged cooling parts can lead to heat problems with the CPU. When the system (CPU) gets to hot, the fan has to kick into high gear to try to cool things down. Once you remove dust and debre from the heat sink fins and fan, you will immediately experience better cooling and less fan usage. Your system may also be set for dynamic switching of CPU speed. If you CPU gets too hot, the system will reduce clock speed and ramp up fan and everything will slow way down. Use a good system monitoring software such as Notebook Hardware Control to monitor your CPU temperature, HDD temp and so forth. When the system starts getting too hot, first look at clogged heat sink fins as possible culprit. If you're good at electronics you may be able to service the unit yourself. Get a copy of the system's Maintenance and Service Manual or have a professional do the job for you as you will have to partially disassemble the computer to clean out the heat sink. Depending on the system, the job can take as little as 15-20 minutes once you become proficient at it.

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Duo Therm Quick Cool A/C fan motor cycles from low to high


sounds like the motor is either wired incoirrectly and getting 1/2 power all the time or it is going to ground. check out the woiring real good and duse your ohhm meter to check for gounds.

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Front unit high cool and high fan not working


just replace the fan ..... its seems there is some voltage problem

Jun 25, 2008 | Dometic Rooftop RV Air Conditioner

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