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Heater blows cold air when it is 30 degrees out side

Heater blows cold air when it is cold out side about 30 degrees but it dont do this when it is 40 degrees does anyone know why this is I have a Rheem heat pump roof top model #RQNA-B036JK000

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Heat pumps don't work as effient at that temp thats why they have 2nd stage supplemtial heat

Posted on Jan 09, 2009

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Heater blows cold air


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Jan 28, 2016 | 2005 Kia Amanti

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Heater will not activate until outside temp. is above 40 degrees


If you have a heat pump the compressor is locked out below that temp. If you have a dual fuel - hp/gas, the gas burners should come on as would the electric heaters if you have electric heat as backup.

Jan 19, 2016 | Heating & Cooling

1 Answer

Heater blows hot all time


Heat control switch is bad if you turn it all the way cold and it still blows hot air.

Jan 17, 2013 | 2010 Dodge Charger

1 Answer

Heater doesnt work


To troubleshoot this types of problem,click the link below :---
Car heater blowing warm, but not hot air?http://schematicsdiagram.blogspot.com/2011/12/car-heater-blowing-warm-but-not-hot-air.html

--------
Engine Overheats and heater blowing cold?

http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html

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Heat blows cold on drivers side and hot on passenger side?

http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html

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No heat on car? http://technoanswers.blogspot.in/2012/02/no-heat-on-oldsmobile-silhouette.html

------------
Heater blows intermittently and temp gauge goes erratic?

http://technoanswers.blogspot.com/2012/01/heater-blows-intermittently-and-temp.html

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Heater blows cold?

http://schematicsdiagram.blogspot.in/2012/02/heater-blows-cold.html

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Heater/AC blower motor not working?

http://technoanswers.blogspot.in/2012/02/heaterac-blower-motor-not-working-on.html

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A/C, heater, defroster fan, not working? http://technoanswers.blogspot.in/2012/02/ac-heater-defroster-fan-not-working.html Heater problem?

http://technoanswers.blogspot.in/2012/02/heater-problem-on-isuzu-trooper.html

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This will help.Thanks.

Mar 27, 2012 | 1994 Volvo 960

1 Answer

Air works great but no heat just blows cold air


For this types of problem,i suggest you to check this help links:----Car heater blowing warm, but not hot air?http://schematicsdiagram.blogspot.com/2011/12/car-heater-blowing-warm-but-not-hot-air.html
---------A/C, heater, defroster fan, not working?http://technoanswers.blogspot.in/2012/02/ac-heater-defroster-fan-not-working.html
--------Heater problem?http://technoanswers.blogspot.in/2012/02/heater-problem-on-isuzu-trooper.html
---------Engine Overheats and heater blowing cold?http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html
-----------Heat blows cold on drivers side and hot on passenger side?http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html----------------This will help.Thanks.

Sep 05, 2011 | 2007 Suzuki SX4

1 Answer

Only blowing out cold air on heat


Keep temp 30 degree and mode button in " Heat" Wait for 3 minutes. still problem, check heater-element/RV/Heater sensor.

Dec 16, 2010 | Amana PTH153B50AM Air Conditioner

3 Answers

My frig is running but not cooling - frig is 50 degrees,freezer 40 degrees, cleaned the coils,etc GE side by side coils in bottom if frig side feel cool, "box" between freezer and frig side is not blowing...


I can help you diagnose the problems with your GE. Several things can cause these symptoms. All you need is a voltage meter patience and a want to, to repair and do it better than a paid technician. In most cases with the PSS26MSRSS the defrost heater is the cause for this. Look into rear of your freezer and back wall. Is Ice or frost building on rear wall? If yes unplug and prepair to remove contents in freezer compartment. Remove rear panel in freezer and use hair dryer to defrost ice until the defrost heater is visible. BRB , Sea Breeze

Jan 23, 2010 | GE (PSS26MSRSS) Side by Side Refrigerator

1 Answer

My frigidaire FFU20FC6AW7 is not freezing. sides are cool to the touch and they are normally hot. cold air blowing out about 40 degrees.


If the evaporator coils behind the back panel of the freezer are icing up because of auto defrost failure that will stop the circulation of cold air and eventually affect the freezer too.

check defrost timer, defrost heater, defrost thermostat. In most newer models the timer has been replaced by an electronic control board. If the heater and thermostat are ok it’ll be the control.
How to check stuff>
http://www.acmehowto.com/howto/appliance/refrigerator/refrigerator.php

Jul 12, 2009 | Frigidaire 20.6 cu. ft. / 583 liter...

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Ford ka heater blows hot air all the time


Your problem is a faulty heater control valve. The design used on these vehicles allows for hot water to flow constantly and compete with the evaporator as there is no blender door. You have to replace the valve and possibly the control head. Meanwhile, you can bypass the valve to have cold air

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1 Answer

Heater does not blow hot air, just cool air


You can put a higher temp thermostat and that should help, but it should at least have 170 degree air right now if it was working right. There are two other things you might check for, the diverter door make some sound when you switch from heat to cool and back, I can't tell you for sure if it is a manual, vacumn or electric but that would definitely cause it to blow cold air. There is also a valve which cuts off circulation to the heater core when your not using it. This valve will be in line with the heater hoses going to your heater core. I have seen some that were actually part of the heater core box. I feel pretty sure one of these will be your problem. Also if your car is low on coolant it would not heat properly. Hope this can help you!

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