Hi, I have a 2004 Kuntry Star and no cold air comming from the A/CIf there is a leak, where would it most likely be? Compressor runs good. Thanks Alby. I M sorey it is the DASH AIR.

A compressor will not run without freon.Are you able to discern the difference between the sounds a compressor makes vs the sound of the fan?Judging from your post leads one to believe you are only hearing the fan.

Dash or roof air? I'll assume roof so how do you know the compressor is running? Can you monitor amps some how?

Hi,My friend had a leak in his capillary tube that leads from the condenser to the indoor coil. I was able to repair it, install a freon valve, evacuate the system, and recharge with R-22. It took about 6 hours, so at $75 per hour for a good refrigeration mechanic, it will be expensive. Lately, I repaired two air conditioners and a refrigerator with leaking freon coils. Yes it took about 6 hours to complete the repairs, parts cost varies from $250 to $450 for each of those repairs, in addition to labor and freon is now running about $28 per pound. Fred.

Evans Tempcon has a excellent technical support area. To find a leak, they have to put dye into the system, which dyes the area when the leak is located. I my opinion, something like this is best left to those with more knowledge than me!

The FIRST thing you do, when the Compressor runs and no cold air on a Evans Tempcon system, is clamp off the 2 Hot water input rubber lines to the heater core at the core area. THEN check the temp. If NOT at 60 or below output, then the heater control valve is probably bad (seeping hot water). Very common problem on 1998 to current Evans Tempcon hot water valves. The compressor will still run if low on 134a coolant and will not cool very well. BUT, you take the hot water lines out of the loop FIRST. Then do your AC diagnosis. Doug

A/C will not get cold and compressor running. | Good Sam Community

21 Replies

allbrandauto
Explorer
Apr 03, 2014
easy way to tell if its the ac not getting cold is try to locate the two refridgerant lines going to dash the bigger line is suction line it should feel cold to the touch if it is you do have a temp. blend problem
AL49er
Explorer
Apr 03, 2014
Can some one tell em where this ac water valve is on my 2004 kontry star Nemar?
dougrainer
Nomad
Apr 03, 2014
mc.cc wrote:
dougrainer wrote:
mc.cc wrote:
I have discovered that I am having a problem with the electronic water valve on mine. It is a two hose system. I blocked the hose that exits from the valve going to the heater core with a pair of vice grips. It works and I am getting cold air now. If I block the upper hose to the heater core too, will this create pressure in the heater core causing potential problems, or is it OK to do this?

NO, it will not create any problems. Think about it. What happens when the water valve functions correctly? It blocks the water flow off completely. Why did you not block the inlet hose first,instead ???? Doug

Thanks Doug! Which is the inlet hose? On the valve there is an arrow that I think indicates which way the coolant is flowing. I blocked the hose as it exits the valve going to the core. There is an upper hose connected to the core that I think is going back to the engine. This is the hose that I was referring to when I asked if I could potentially block both hoses. A new electronic valve cost approximately $200 after shipping. I think I will opt for just blocking the hose as I am not sure if it is the valve or the controller, or a combination of both that could be the issue.

It makes no difference. Just asking why. The "controller" is the Dash AC/Heat panel. It rarely(never) fails. IF the valve is seeping, you can remove it and flush it out and that sometimes removes the debris that is causing it to not close completely. Doug
mc_cc
Explorer
Apr 03, 2014
Ivylog wrote:
Spend your money on a manual valve somewhere in the system to stop the hot water from circulating. Close it in the summer and open it in the winter.

Sounds like a good idea in general, even if there is not a problem at all. Thanks for the advice. Will do.
mc_cc
Explorer
Apr 03, 2014
dougrainer wrote:
mc.cc wrote:
I have discovered that I am having a problem with the electronic water valve on mine. It is a two hose system. I blocked the hose that exits from the valve going to the heater core with a pair of vice grips. It works and I am getting cold air now. If I block the upper hose to the heater core too, will this create pressure in the heater core causing potential problems, or is it OK to do this?

NO, it will not create any problems. Think about it. What happens when the water valve functions correctly? It blocks the water flow off completely. Why did you not block the inlet hose first,instead ???? Doug

Thanks Doug! Which is the inlet hose? On the valve there is an arrow that I think indicates which way the coolant is flowing. I blocked the hose as it exits the valve going to the core. There is an upper hose connected to the core that I think is going back to the engine. This is the hose that I was referring to when I asked if I could potentially block both hoses. A new electronic valve cost approximately $200 after shipping. I think I will opt for just blocking the hose as I am not sure if it is the valve or the controller, or a combination of both that could be the issue.
Ivylog
Explorer III
Apr 03, 2014
Spend your money on a manual valve somewhere in the system to stop the hot water from circulating. Close it in the summer and open it in the winter.
dougrainer
Nomad
Apr 01, 2014
mc.cc wrote:
I have discovered that I am having a problem with the electronic water valve on mine. It is a two hose system. I blocked the hose that exits from the valve going to the heater core with a pair of vice grips. It works and I am getting cold air now. If I block the upper hose to the heater core too, will this create pressure in the heater core causing potential problems, or is it OK to do this?

NO, it will not create any problems. Think about it. What happens when the water valve functions correctly? It blocks the water flow off completely. Why did you not block the inlet hose first,instead ???? Doug
flapbreaker
Explorer
Apr 01, 2014
mc.cc wrote:
I have discovered that I am having a problem with the electronic water valve on mine. It is a two hose system. I blocked the hose that exits from the valve going to the heater core with a pair of vice grips. It works and I am getting cold air now. If I block the upper hose to the heater core too, will this create pressure in the heater core causing potential problems, or is it OK to do this?

Couldn't tell you if it's harmful. Does it look like this one?

http://www.thermotion.com/pdf/4_Port_Data_Sheet.pdf
mc_cc
Explorer
Apr 01, 2014
I have discovered that I am having a problem with the electronic water valve on mine. It is a two hose system. I blocked the hose that exits from the valve going to the heater core with a pair of vice grips. It works and I am getting cold air now. If I block the upper hose to the heater core too, will this create pressure in the heater core causing potential problems, or is it OK to do this?
dougrainer
Nomad
Mar 31, 2014
marcsbigfoot20b27 wrote:
The only correct way to diagnose an AC system is to throw some gauges on it. R12 or 134a ?

It is 134a. Doug