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Supco Hard Start failure... Jake 07-10-2007
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Posted by Jake on July 10, 2007, 6:15 pm
Regulars here may remember me discussing one of my 'good will' calls
last year (or maybe 2 years ago) where a Rheem condenser had a start cap
failure, and refused to start with a OEM replacement.

I put a SPP-6E on the thing.

The folks called the office this afternoon (it's warm in Indiana right
now... 95) with a no-cool complaint. After I do these calls, I always
let the people know how to reach me... I'm willing to help however I can.

Anyhow, the whole top of the SPP was blown off. The compressor checked
electrically OK (it's a recip) so I went out late this afternoon and
replaced it with another.. I think it's a SPP-8.

Still no condenser start... the contactor refused to pull in. I replaced
it, too.

The unit is running fine now... the current draw was way below the RLA
(maybe 10 percent less), the pressures all looked great.

I'm just wondering what failed the original SPP? Do you suppose a
chattering contactor would have done it?

You all know me by now... always curious.

Jake


Posted by Bubba on July 10, 2007, 6:33 pm

>Regulars here may remember me discussing one of my 'good will' calls
>last year (or maybe 2 years ago) where a Rheem condenser had a start cap
>failure, and refused to start with a OEM replacement.
>
>I put a SPP-6E on the thing.
>
>The folks called the office this afternoon (it's warm in Indiana right
>now... 95) with a no-cool complaint. After I do these calls, I always
>let the people know how to reach me... I'm willing to help however I can.
>
>Anyhow, the whole top of the SPP was blown off. The compressor checked
>electrically OK (it's a recip) so I went out late this afternoon and
>replaced it with another.. I think it's a SPP-8.
>
>Still no condenser start... the contactor refused to pull in. I replaced
>it, too.
>
>The unit is running fine now... the current draw was way below the RLA
>(maybe 10 percent less), the pressures all looked great.
>
>I'm just wondering what failed the original SPP? Do you suppose a
>chattering contactor would have done it?
>
>You all know me by now... always curious.
>
>Jake

Gosh Jake,
I hate when I have to explain "electricals" to you. :-)
The top of the Supco has what looks like Neco Wafers in it.
They are wired into the circuit and create resistance.
As soon as power is applied to the Supco, the voltage "boost" is
produced and sent to the compressor. Within just a second or two or
three, those wafers become extremely hot. This heat causes high
resistance and immediately takes the capacitor of the Supco out of the
circuit. They blow their tops a lot. Sometimes it makes quite a mess.
Like anything else, if they made it out of very durable materials it
would be too expensive, last too long, never fail and the manufacturer
of the Supco would go out of business.
Tomorrow I will explain how electricity is made. :-) sorry
Bubba

Posted by Jake on July 10, 2007, 6:43 pm
Bubba wrote:
>
>> Regulars here may remember me discussing one of my 'good will' calls
>> last year (or maybe 2 years ago) where a Rheem condenser had a start cap
>> failure, and refused to start with a OEM replacement.
>>
>> I put a SPP-6E on the thing.
>>
>> The folks called the office this afternoon (it's warm in Indiana right
>> now... 95) with a no-cool complaint. After I do these calls, I always
>> let the people know how to reach me... I'm willing to help however I can.
>>
>> Anyhow, the whole top of the SPP was blown off. The compressor checked
>> electrically OK (it's a recip) so I went out late this afternoon and
>> replaced it with another.. I think it's a SPP-8.
>>
>> Still no condenser start... the contactor refused to pull in. I replaced
>> it, too.
>>
>> The unit is running fine now... the current draw was way below the RLA
>> (maybe 10 percent less), the pressures all looked great.
>>
>> I'm just wondering what failed the original SPP? Do you suppose a
>> chattering contactor would have done it?
>>
>> You all know me by now... always curious.
>>
>> Jake
>
> Gosh Jake,
> I hate when I have to explain "electricals" to you. :-)
> The top of the Supco has what looks like Neco Wafers in it.
> They are wired into the circuit and create resistance.
> As soon as power is applied to the Supco, the voltage "boost" is
> produced and sent to the compressor. Within just a second or two or
> three, those wafers become extremely hot. This heat causes high
> resistance and immediately takes the capacitor of the Supco out of the
> circuit. They blow their tops a lot. Sometimes it makes quite a mess.
> Like anything else, if they made it out of very durable materials it
> would be too expensive, last too long, never fail and the manufacturer
> of the Supco would go out of business.
> Tomorrow I will explain how electricity is made. :-) sorry
> Bubba

Hah... It was a mess and I really didn't look at it very well.

Geeze... one or two years and it fails? Yikes!

Jake

Posted by =?ISO-8859-1?Q?Tekkie=AE?= on July 10, 2007, 9:38 pm
Bubba wrote:
>
>> Regulars here may remember me discussing one of my 'good will' calls
>> last year (or maybe 2 years ago) where a Rheem condenser had a start cap
>> failure, and refused to start with a OEM replacement.
>>
>> I put a SPP-6E on the thing.
>>
>> The folks called the office this afternoon (it's warm in Indiana right
>> now... 95) with a no-cool complaint. After I do these calls, I always
>> let the people know how to reach me... I'm willing to help however I can.
>>
>> Anyhow, the whole top of the SPP was blown off. The compressor checked
>> electrically OK (it's a recip) so I went out late this afternoon and
>> replaced it with another.. I think it's a SPP-8.
>>
>> Still no condenser start... the contactor refused to pull in. I replaced
>> it, too.
>>
>> The unit is running fine now... the current draw was way below the RLA
>> (maybe 10 percent less), the pressures all looked great.
>>
>> I'm just wondering what failed the original SPP? Do you suppose a
>> chattering contactor would have done it?
>>
>> You all know me by now... always curious.
>>
>> Jake
>
> Gosh Jake,
> I hate when I have to explain "electricals" to you. :-)
> The top of the Supco has what looks like Necco Wafers in it.

I like the chocolate ones, very hard to find any more...

> They are wired into the circuit and create resistance.
> As soon as power is applied to the Supco, the voltage "boost" is
> produced and sent to the compressor. Within just a second or two or
> three, those wafers become extremely hot. This heat causes high
> resistance and immediately takes the capacitor of the Supco out of the
> circuit. They blow their tops a lot. Sometimes it makes quite a mess.
> Like anything else, if they made it out of very durable materials it
> would be too expensive, last too long, never fail and the manufacturer
> of the Supco would go out of business.
> Tomorrow I will explain how electricity is made. :-) sorry
> Bubba

Posted by Tony on July 10, 2007, 6:35 pm

> Regulars here may remember me discussing one of my 'good will' calls last
> year (or maybe 2 years ago) where a Rheem condenser had a start cap
> failure, and refused to start with a OEM replacement.
>
> I put a SPP-6E on the thing.
>
> The folks called the office this afternoon (it's warm in Indiana right
> now... 95) with a no-cool complaint. After I do these calls, I always let
> the people know how to reach me... I'm willing to help however I can.
>
> Anyhow, the whole top of the SPP was blown off. The compressor checked
> electrically OK (it's a recip) so I went out late this afternoon and
> replaced it with another.. I think it's a SPP-8.
>
> Still no condenser start... the contactor refused to pull in. I replaced
> it, too.
>
> The unit is running fine now... the current draw was way below the RLA
> (maybe 10 percent less), the pressures all looked great.
>
> I'm just wondering what failed the original SPP? Do you suppose a
> chattering contactor would have done it?
>
> You all know me by now... always curious.
>
> Jake
>
Short cycling



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