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Carrier Residential Heat Pump jhill 05-21-2008
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Posted by on May 21, 2008, 2:13 pm
Trying to solve a problem, first the main power relay was sticking but
even with the thermostat calling for cooling and activating the relay
using a stick to push it in.... the fan and compressor kick on and
run. My problem is that the air doesn't get very cold. When I switch
the thermostat to heat I get basically the same temperature air. There
are, I think nine wires going from the thermostat to the heatpump and
I believe 3 of them were showing 24 volts on the control board. I have
checked the coil in the indoor furnace to see that everything is clean
there and it is so air is flowing. I have also grabbed both copper
tubes between the heatpump and indoor unit and they don't seem to be
cold/hot either. Any ideas before I call in the calvary.

Thanks in advance for you help.

Jeff

Posted by on May 21, 2008, 3:39 pm
On Wed, 21 May 2008 11:13:46 -0700 (PDT), jhill@cleanpak.com wrote:

>Trying to solve a problem, first the main power relay was sticking but
>even with the thermostat calling for cooling and activating the relay
>using a stick to push it in.... the fan and compressor kick on and
>run. My problem is that the air doesn't get very cold.

        How long was the stick ? You need at least a 3 footer for
cold air.


> When I switch
>the thermostat to heat I get basically the same temperature air. There
>are, I think nine wires going from the thermostat to the heatpump and
>I believe 3 of them were showing 24 volts on the control board. I have
>checked the coil in the indoor furnace to see that everything is clean
>there and it is so air is flowing. I have also grabbed both copper
>tubes between the heatpump and indoor unit and they don't seem to be
>cold/hot either. Any ideas before I call in the calvary.

        Have your checkbook handy.


>
>Thanks in advance for you help.
>
>Jeff

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Posted by daytona° on May 22, 2008, 1:47 pm
I use the 3 foot stick to beat it with

Larger ones are better


> On Wed, 21 May 2008 11:13:46 -0700 (PDT), jhill@cleanpak.com wrote:
>
>>Trying to solve a problem, first the main power relay was sticking but
>>even with the thermostat calling for cooling and activating the relay
>>using a stick to push it in.... the fan and compressor kick on and
>>run. My problem is that the air doesn't get very cold.
>
> How long was the stick ? You need at least a 3 footer for
> cold air.
>
>
>> When I switch
>>the thermostat to heat I get basically the same temperature air. There
>>are, I think nine wires going from the thermostat to the heatpump and
>>I believe 3 of them were showing 24 volts on the control board. I have
>>checked the coil in the indoor furnace to see that everything is clean
>>there and it is so air is flowing. I have also grabbed both copper
>>tubes between the heatpump and indoor unit and they don't seem to be
>>cold/hot either. Any ideas before I call in the calvary.
>
> Have your checkbook handy.
>
>
>>
>>Thanks in advance for you help.
>>
>>Jeff
>
> --
> Click here every day to feed an animal that needs you today !!!
> www.theanimalrescuesite.com/
>
> Paul ( pjm @ pobox . com ) - remove spaces to email me
> 'Some days, it's just not worth chewing through the restraints.'
> 'With sufficient thrust, pigs fly just fine.'
> HVAC/R program for Palm PDA's
> Free demo online at www.pmilligan.net/palm/
> Free 'People finder' program now at www.pmilligan.net/finder.htm



Posted by Bubba on May 21, 2008, 3:42 pm
On Wed, 21 May 2008 11:13:46 -0700 (PDT), jhill@cleanpak.com wrote:

>Trying to solve a problem, first the main power relay was sticking but
>even with the thermostat calling for cooling and activating the relay
>using a stick to push it in.... the fan and compressor kick on and
>run. My problem is that the air doesn't get very cold. When I switch
>the thermostat to heat I get basically the same temperature air. There
>are, I think nine wires going from the thermostat to the heatpump and
>I believe 3 of them were showing 24 volts on the control board. I have
>checked the coil in the indoor furnace to see that everything is clean
>there and it is so air is flowing. I have also grabbed both copper
>tubes between the heatpump and indoor unit and they don't seem to be
>cold/hot either. Any ideas before I call in the calvary.
>
>Thanks in advance for you help.
>
>Jeff

Jeff,
Your problem solving doesn't seem to be working very well. If you are
pushing the relay in with a stick then the stat "aint callin" and/or
the relay "aint listenin".
If the air isn't very cold, maybe you need a bigger stick?
If you switch to heat and get the same temperature then both you heat
and your cool are in balance and working together well in unison.
If you have 9 wires to the heat pump then you should have enough. It
only takes 5. Some use more. Some only use 3 so at 9 you should be
well taken care of.
You should have 24 volts on 4 wires, not 3. If it has 24 volts going
in it has to have 24 volts going back out. So that is 2 right there.
Its good that the air is flowing over your clean coil. How much air is
there flowing? Sometimes that matters. You should have about a quart
of air for every 1.5 tons of cooling. How much do you have?
If you grabbed both tubes and they don't seem to be cold or hot then
once again, your system seems to be well in tune and balanced.
Really, it seems your system is working very well. Maybe, instead of
calling in the Calvary, you should call in Stormy. I hear he is very
good at diagnosing these things AFTER he hears how everyone else
diagnoses it first.
Good Luck.
Bubba

Posted by Zyp on May 24, 2008, 12:37 am
Bubba wrote:
> On Wed, 21 May 2008 11:13:46 -0700 (PDT), jhill@cleanpak.com wrote:
>
>> Trying to solve a problem, first the main power relay was sticking
>> but even with the thermostat calling for cooling and activating the
>> relay using a stick to push it in.... the fan and compressor kick on
>> and run. My problem is that the air doesn't get very cold. When I
>> switch the thermostat to heat I get basically the same temperature
>> air. There are, I think nine wires going from the thermostat to the
>> heatpump and I believe 3 of them were showing 24 volts on the
>> control board. I have checked the coil in the indoor furnace to see
>> that everything is clean there and it is so air is flowing. I have
>> also grabbed both copper tubes between the heatpump and indoor unit
>> and they don't seem to be cold/hot either. Any ideas before I call
>> in the calvary.
>>
>> Thanks in advance for you help.
>>
>> Jeff
>
> Jeff,
> Your problem solving doesn't seem to be working very well. If you are
> pushing the relay in with a stick then the stat "aint callin" and/or
> the relay "aint listenin".
> If the air isn't very cold, maybe you need a bigger stick?
> If you switch to heat and get the same temperature then both you heat
> and your cool are in balance and working together well in unison.
> If you have 9 wires to the heat pump then you should have enough. It
> only takes 5. Some use more. Some only use 3 so at 9 you should be
> well taken care of.
> You should have 24 volts on 4 wires, not 3. If it has 24 volts going
> in it has to have 24 volts going back out. So that is 2 right there.
> Its good that the air is flowing over your clean coil. How much air is
> there flowing? Sometimes that matters. You should have about a quart
> of air for every 1.5 tons of cooling. How much do you have?
> If you grabbed both tubes and they don't seem to be cold or hot then
> once again, your system seems to be well in tune and balanced.
> Really, it seems your system is working very well. Maybe, instead of
> calling in the Calvary, you should call in Stormy. I hear he is very
> good at diagnosing these things AFTER he hears how everyone else
> diagnoses it first.
> Good Luck.
> Bubba

Doesn't he need a new thermostat Bubba?

--
Zyp



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