answersLogoWhite

0


Best Answer

If this is a reversing valve on a heatpump all you need do is to find out if you are getting voltage to the solenoid on the reversing valve. The solenoid is energized in either the heating or cooling mode, depending on the unit and normally receives its voltage from the orange wire from the thermostat.

If you have no voltage to the solenoid in the cooling mode, switch it over to heat. If you still have no voltage, the solenoid or the control board is bad and needs to be replaced. If you have voltage, the valve should make a swooshing noise when the unit is switched from heat to cool/cool to heat. No swoosh, valve is bad.

*First, if there is no voltage to the solenoid, then the problem does not necessarily lie in the solenoid, but from the source of its power: a relay, a control board, etc...

*Second, the statement, "No swoosh, valve is bad" is common terminology used by people who don't completely understand how heat pumps and reversing valves operate. The "swoosh" is the refrigerant rushing sound heard when the slider inside the valve shifts positions. The slider is operated by discharge pressure from the unit's compressor. If the unit is low of refrigerant it might not have enough discharge pressure to make the slider shift, therefore no "swoosh" sound.

A lot of reversing valves and compressors have been needlessly replaced by individuals who don't know what they are doing.

User Avatar

Wiki User

โˆ™ 2010-12-14 15:20:23
This answer is:
๐Ÿ™
0
๐Ÿคจ
0
๐Ÿ˜ฎ
0
User Avatar
Study guides
๐Ÿ““
See all Study Guides
โœ๏ธ
Create a Study Guide

Add your answer:

Earn +20 pts
Q: How to make certain a heating and cooling reversing valve is working correctly?
Write your answer...
Submit
Related questions

What component is used to change the heat pump from cooling to heating?

reversing valve


When the solenoid on a heat pump is energized in what mode will the reversing vavle be?

depends on who makes it. some energize in heating and some in cooling.


In a heat pump installation the direction of flow refrigerant vapor is reversed through what component when the cycle is reversed from heating to cooling?

The reversing valve


Can heatpump switch from heating to cooling and from cooling to heating automatically?

You have to manually select the heating, and cooling mode located on your thermostat.


What substance does not expand on heating?

Within a certain limited temperature range, water does not expand on heating, but on cooling. That's why ice floats,


Heating and Cooling Service?

form_title= Heating and Cooling Service form_header= Keep your heating and cooling running smoothly. How old is your heating and cooling system?*= _ [50] Have you ever had to have it repaired?*= () Yes () No Do you have central air?*= () Yes () No


Can I separate my heating and cooling system, or do I call a professional?

Consultation of a licensed heating/cooling contractor is advisable when considering separating the heating and cooling units. The Guide to Heating and Air Conditioning is an excellent resource for information on heating/cooling repair work.


I have Ceiling hung Florida heat pump unit. when i call for cooling I get heat from vents?

The O and B terminals are not properly enabled in the thermostat or not correctly hooked up in the unit. Some units energize the O or the B terminals to activate the reversing valve for heating or cooling, Check with the manufacturer or just try to make the swap and see if it corrects the problem.


Where can you find facts about heating and cooling?

type in google/bing heating and cooling facts.


What type of rock forms due to heating and cooling?

igneous rock is formed by heating and cooling.


Can a heat pump switch from heating to cooling and from cooling to heating automatically?

only if you have an auto switchover thermostat


Science fair do heating and cooling effect the strength of glass?

No, heating and cooling does not effect the strength of a glass


What is the difference between a heating curve and a cooling curve?

heating curve is hotter than the cooling curve


You are repairing a house that has no heating or cooling ductworkWhat can be done to provide cooling and heating?

Use baseboard heaters and an air conditioner.


How is a three way valve used?

Used on heating/cooling systems. Allows uninterrupted circulation through heating/cooling unit or heating/cooling system using 3-way valve.


Can Geothermal pumps can be used for heating or cooling?

cooling


What makes a heat pump change from cooling to heating Is it the reversing valve or is it something else I guess what i am asking is it that componet or does it have some kind of thermostat on it?

Typically, your central thermostat sends a 24 volt signal to a terminal labelled "O", down a (usually orange-colored) wire to the reversing valve. This energizes the valve to switch over to cooling operation. For heat, the 24 volt signal is removed, and the valve defaults to the heating position.The HVAC Veteran


What is thermo cycling?

Thermo cycling AKA thermic cycling AKA thermal cycling means taking something, heating it, cooling it and heating it and cooling it over and over again. Each hot-cold sequence will introduce mechanical stresses as materials expand on heating and contract on cooling. It's often used to research how durable a certain design is likely to be.


How does heating and cooling of land and water effect climate?

Heating and Cooling in extremes causes disasters and climate shifts


How can heating and cooling crack a rock?

Heating expands and cooling shrinks the outer layer of the rock which will eventually peel off.


What company owns Heil heating and cooling?

International Cooling Products


What is the phone number of the Lunsford Heating And Cooling in Brazil Indiana?

The phone number of the Lunsford Heating And Cooling is: 812-446-1621.


What effect does heating and cooling have on metallic structures (more specifically grain size)?

The dimensions grains in metals are modified by heating or cooling.


Are there any systems that provide central heating and cooling in one location?

Yes. HVAC systems offer both heating and cooling.


Where can one find information on geothermal heating and cooling?

The best information on geothermal heating and cooling will come from your local heating and cooling professional, who will evaluate your situation and help determine what product is right for you. There are many websites that offer general information on geothermal heating and cooling as well, including Earth Comfort, Geo Comfort and Energy Star.