Need advice - Page 2

Posted by Bubba on April 25, 2007, 9:03 pm

On Wed, 25 Apr 2007 22:01:42 GMT, "David Moffitt"

>> On Wed, 25 Apr 2007 18:44:19 GMT, "David Moffitt"

>>>>> The A/C unit on my travel trailer had quit. I took the cover off and
>>>>> all
>>>> of
>>>>> the fans are running but not the compressor. No hum, no vibration, no
>>>>> warmth. Maybe the compressor is gone but what should I check to make
>>>>> sure
>>>> it
>>>>> is not an electrical problem. I do not want to spend $500.00 to replace
>>>>> it
>>>>> when $5.00 will repair it. I await your answers with an ohm meter in
>>>>> one
>>>>> hand and a phillips screwdriver in the other.
>>>> Yellow pages?
>>>No HVAC company will look at it and RV places want to replace the whole
>>>unit. That is why I'm asking questions on what to check out on the unit.

>> You need the phone book in one hand and a phone in the other. Ditch
>> the ohm meter and phillips screwdriver.
>> I dont believe your story.

>Do you repair AC units on travel trailers?

Ive been known to do repairs on all sorts of stuff. Not all my cup of
tea but sometimes you gotta do what pays the bills.

> For money, most companies will look at most

>> anything. You just didnt call enough/any places and/or you didnt like
>> the price they told you.

>I didn't need to pay $100.00 service call fee to be told the compressor was
>not running.

Why would you do that. IF you pay a tech you should get a diagnosis.
It might not be a step by step "how to" but he should be able to tell
you what needs to be fixed/replaced for a service call fee.

>> A/C is a luxury and you have to pay to get it fixed. Otherwise, SWEAT!
>> Bubba
>> (.......and no, no one pissed in my beer today)

>It must have been pissed in yesterday. OTOH thanks for the help.

Yur welcome
Bubba

Posted by on April 25, 2007, 5:12 pm

>>> The A/C unit on my travel trailer had quit. I took the cover off and all

>> of

>>> the fans are running but not the compressor. No hum, no vibration, no
>>> warmth. Maybe the compressor is gone but what should I check to make sure

>> it

>>> is not an electrical problem. I do not want to spend $500.00 to replace
>>> it
>>> when $5.00 will repair it. I await your answers with an ohm meter in one
>>> hand and a phillips screwdriver in the other.

>> Yellow pages?

>No HVAC company will look at it and RV places want to replace the whole
>unit. That is why I'm asking questions on what to check out on the unit.

Remove the wires from the compressor, labeling them as you remove
them. Then with your ohm meter look for resistance between the three
points of connection C-R, C-S, S-R If any one or more show open
windings, your compressor is toast. If all three ohm out showing most
any resistance, its most likely not the compressor. Trace the wiring
back to the compressor run capacitor. Pull the wiring leads off &
using your capacitance checker, check the capacitance of the
capacitor. It should be stamped on it what its capacitance is.

Check back in after completing these steps.

Posted by on April 25, 2007, 5:53 pm

> Remove the wires from the compressor, labeling them as you remove
> them.

If the wiring is burnt, be VERY careful that one on the pins don't come
shooting out at you!!!!!!!!!!

As a safty, don't put any part of your body directly in front of the
terminals when you pull the wires off.

Posted by David Moffitt on April 25, 2007, 6:09 pm

>> Remove the wires from the compressor, labeling them as you remove
>> them.

> If the wiring is burnt, be VERY careful that one on the pins don't come
> shooting out at you!!!!!!!!!!
> As a safty, don't put any part of your body directly in front of the
> terminals when you pull the wires off.

All the terminals are nice and clean and the wire in good condition. The
first thing I did was clean all connections in case corrosion was causing
any poor connections. There wasn't any. Thanks.

Posted by David Moffitt on April 25, 2007, 6:04 pm

>>>> The A/C unit on my travel trailer had quit. I took the cover off and
>>>> all
>>> of
>>>> the fans are running but not the compressor. No hum, no vibration, no
>>>> warmth. Maybe the compressor is gone but what should I check to make
>>>> sure
>>> it
>>>> is not an electrical problem. I do not want to spend $500.00 to replace
>>>> it
>>>> when $5.00 will repair it. I await your answers with an ohm meter in
>>>> one
>>>> hand and a phillips screwdriver in the other.
>>> Yellow pages?

>>No HVAC company will look at it and RV places want to replace the whole
>>unit. That is why I'm asking questions on what to check out on the unit.

> Remove the wires from the compressor, labeling them as you remove
> them. Then with your ohm meter look for resistance between the three
> points of connection C-R, C-S, S-R If any one or more show open
> windings, your compressor is toast. If all three ohm out showing most
> any resistance, its most likely not the compressor. Trace the wiring
> back to the compressor run capacitor. Pull the wiring leads off &
> using your capacitance checker, check the capacitance of the
> capacitor. It should be stamped on it what its capacitance is.
> Check back in after completing these steps.

Now that is what I needed to know! It's raining out so it will probably be
tomorrow before I climb back up.

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