thermostat calibration for Mitsubishi Mr. Slim?

Posted by on September 4, 2007, 7:21 pm

hello all,

we have a Mitsubishi Mr. Slim (PKA-A36FAL) that since installation
seems to have a thermostat issue. specifically the thermostat is
reporting that the room temperature is about 16 degrees (F) warmer
than reality. the error, seems to be consistent, always about 16
degrees off. for example, the thermostat is currently reporting that
the room is at 83 degrees when a bulb thermometer reading at the same
location as the thermostat reports 67 degrees. the AC works great, the
problem is that the thermostat and real room temperature are quite
different so i have to compensate by setting the thermostat fairly
high otherwise the cooler runs constantly and the room becomes too
cold.

the unit is brand new and under warranty, but i am having difficulty
getting a timely response from the installers. when we last talked,
the installer indicated that there may be thermostat calibration
routine that we can perform that would rectify the situation. can
anybody instruct me on home to perform the calibration (not detailed
in the operation manual i was given) or provide any other advice on my
situation?

thanks,
alex

Posted by Bubba on September 4, 2007, 7:40 pm

On Tue, 04 Sep 2007 23:21:07 -0000, putt454@yahoo.com wrote:

>hello all,
>we have a Mitsubishi Mr. Slim (PKA-A36FAL) that since installation
>seems to have a thermostat issue. specifically the thermostat is
>reporting that the room temperature is about 16 degrees (F) warmer
>than reality. the error, seems to be consistent, always about 16
>degrees off. for example, the thermostat is currently reporting that
>the room is at 83 degrees when a bulb thermometer reading at the same
>location as the thermostat reports 67 degrees. the AC works great, the
>problem is that the thermostat and real room temperature are quite
>different so i have to compensate by setting the thermostat fairly
>high otherwise the cooler runs constantly and the room becomes too
>cold.
>the unit is brand new and under warranty, but i am having difficulty
>getting a timely response from the installers. when we last talked,
>the installer indicated that there may be thermostat calibration
>routine that we can perform that would rectify the situation. can
>anybody instruct me on home to perform the calibration (not detailed
>in the operation manual i was given) or provide any other advice on my
>situation?
>thanks,
>alex

C'mon Alex,
Its new and under warranty? Then call Mitsubishi, tell them your
problem and have them recommend a dealer that will solve your issue.
OR replace the indoor controller board if there is abnormal difference
between actual room temperature per the instructions in here:
http://www.acdirect.com/xcart/images/products/SVC_INDR_PKA-A12-36_OC369.pdf
by the way........this took google and me about 30 seconds to find.
How lazy is your ass?
Bubba

Posted by on September 4, 2007, 8:19 pm

thanks Bubba (and ftwhd). not so much lazy as not knowing exactly what
to search for and perhaps putting too much faith in what the installer
had told me about the calibration. in any case, i appreciate your
advice; you can think of me what you like.

best,
alex

> C'mon Alex,
> Its new and under warranty? Then call Mitsubishi, tell them your
> problem and have them recommend a dealer that will solve your issue.
> OR replace the indoor controller board if there is abnormal difference
> between actual room temperature per the instructions in

here:http://www.acdirect.com/xcart/images/products/SVC_INDR_PKA-A12-36_OC3...

> by the way........this took google and me about 30 seconds to find.
> How lazy is your ass?
> Bubba

Posted by =?ISO-8859-1?Q?Tekkie=AE?= on September 4, 2007, 9:11 pm

puttdog@gmail.com wrote:

> thanks Bubba (and ftwhd). not so much lazy as not knowing exactly what
> to search for and perhaps putting too much faith in what the installer
> had told me about the calibration. in any case, i appreciate your
> advice; you can think of me what you like.
>
> best,
> alex

>> C'mon Alex,
>> Its new and under warranty? Then call Mitsubishi, tell them your
>> problem and have them recommend a dealer that will solve your issue.
>> OR replace the indoor controller board if there is abnormal difference
>> between actual room temperature per the instructions in

here:http://www.acdirect.com/xcart/images/products/SVC_INDR_PKA-A12-36_OC3...

>> by the way........this took google and me about 30 seconds to find.
>> How lazy is your ass?
>> Bubba

>
>

just check out the inferior phenomenon and all is good...

Posted by on September 4, 2007, 10:35 pm

> you can think of me what you like.

He will, but thanks for your approval. LOL

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