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Icy connection to house and inside unit - Heating & Cooling

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In the cooling cycle, a low "freon" charge or low air flow can cause the line set to ice up. Check your air filter to be sure that low air flow is not just a dirty filter; then call for a system check up. (you do need your vents open throughout the home)

Posted on May 03, 2008

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The outside unit fan kicks on but the inside unit does not.

It sounds like your blower motor has gone out., the buzzing would be the motor trying to start but maybe locked up. You most likely have a completely burned out motor so you no longer have any buzzing. The motor can be changed out by a do it yourself-er with some mechanical and electrical know how. If you do it yourself be sure to replace the motor run capacitor.

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No cool air, squirrel cage motor is humming, not running on its own. Cold line is freezing up at connection to outside unit and inside unit. Coils on the inside unit are freezing. This is an older unit...

Take the whole blower housing out. Remove the blower motor get the H/P, RPM and voltage they sell these motors that are universal they are called rescue motors they work for everything. Also make sure to replace the capacitor on the blower motor when you do the work. If this helps please rate me and do a testimonial.

Jun 09, 2011 | Heating & Cooling

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Hi, After finding out that Freon is low by seeing snow/icy surface on outside compressor, I went up in the attic to find snowy/Icy surface all over the coil inside the air handler. I wahsed it and made...

Your still froze up.There is a freeze cutoff device in the air handler upstairs.
Look for a thin silver color tube near the coil and follow it to the control box,there may be a reset button.If not, try using a hair dryer to warm up the coil and it should reset itsself.
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Air condition jsut 10 month old ... not keeping up whith cooling

If it's only 92° outside and the unit won't cool the house, then the unit is either to small or it's low on refrigerant. They are designed to cool a house with outdoor temperatures up to 115° to 120°.Usually you need one ton a/c for every 400 square feet of house, but, you have to take into account for average outdoor temperature and humidity, windows, doors, especially sliding glass or patio doors and which side of the house they are on, insulation in walls and attic.
The air leaving your duct work going into the rooms should be about 20° lower than the room temperature, if you have a 80° room then the air leaving the duct should be around 60°. if it is then the unit is probably to small if, everything is working properly.

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TRANE 1984 Home A/C Where are How to Clean Coils inside House

the best thing to do it with airhandler shut down at breaker. 1st soften dirt and crud with 409 or different brand. 2nd take a wire brush and clean in up and down motion following the fins on coil.3rd rinse with spray bottle . this is the best you can do without coil removal.

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House HVAC Not Blowing

If the outside unit is running and the inside unit is not, probably a problem with the fan motor itself or its capacitor. If you have to have someone repair or replace the fan $200-$250 with parts, a capacitor for a service call and part $100 or so. Check it yourself first to see if there is anything obvious broken wire, hot connection, etc if you feel safe doing that. Turn the power off first. There is also a chance the thermostat could be the problem. Have you tried running the fan on the thermostat "fan on" setting?

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Panasonic cs-pw9gke i need wiring diagram

Split A/C-Cold:

You need four wires(two #10 and two #12) to the outdoor unit, leaving you house, and three wires(#10) coming from the breaker to tye indoor unit inside your house.

Split A/C-Cold and Hot:

You need five wires(two #10 and three #12) to the outdoor unit, leaving your house, and thee wires(#10) coming from the breaker to your indoor unit inside your house.

This ypical arrangment(all of them use three wires fro the breaker), yet there are other units which may require 6-7 wires connected to the the outdoor unit depends on the added features to the unit.



Dec 05, 2008 | GE Quiet-Aire Ductless Split System Air...

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Have a near new panasonic cs-e28hkr split system air conditioner and the outside condensor fan continously runs even with inside unit is turned off? Thanks

If the inside unit (evaporator) is turned off absolutely.
The condensing unit must be turn off outside because the power
are derived comes from the evaporator.
Possible it seems on the cut out stage inside and remain the power still on
Otherwise theres somebody tamper the connection?

Fan cable consist of 3 wires
1 Common line
2 Start /stop line***Change the connection of this wire where it located, To On/ Off switch of the
evaporator inside unit
3 Ground green line/Earth

note: you can get all that wires inside the power supply in evaporator area.

If still under warranty inform the manufacturer


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1 Answer

Wont turn on at all

I assume this is a house HVAC unit. Is it a split unit with the fan cooling unit outside and the condenser unit inside the atic or the basement ?

Check the circuit breaker on your house circuit breaker board first that it is not tripped. If its good then continue.

There are many reasons why it may not be working, but one of the first things to check is your starter capacitor.

First turn off the contact breaker for your AC unit at the fuse box in the house, then go to the external units and pull the circuit breaker out where the unit hoses attach to the wall of the house.

Take off the inspection pannel on the rear corner where the hoses enter and exit the External cooling unit and look for a silver can with three spade terminal connections on the top. Its probably about 4 inches high and anything from 1.5 - 3 inches across. It can be a cylinder or a oval cylinder in shape.
Check to see if the capacitor looks like it has had an explosion inside - i.e. the top is bent up in a dome shape or there are holes blown in the top of the capcitor. If that's the case you need it replaced. this is the starter capacitor that helps build the voltage to get the compressor going. Without it working the unit will not start. Depending upon your capacitor rateing you can get them on line around $20, but you have to buy the right rating ( for this you will need to check the labeling on the old capacitor) or if you call an AC company they will charge you about $100 for the same thing.

A great site to go to to find spairs at very reasonable rates and to look for assistance is Arnolds. See here:-

Good luck

Aug 29, 2008 | Heating & Cooling

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