answersLogoWhite

0

If you have a heat pump A/C unit then you have auxillary heat and emergency heat. The EM stands for emergency heat, which is using only your electric heat strips or gas heat, depending on your system. The auxillary heat uses your compressor inside of your outside unit. Say the house is 60 degrees inside and you set your stat to 70, the temperature difference is so great that if the heat pump alone cannot satisfy, then the auxillary heat would come on to assist the heat pump. Say you were to get a leak in either your condenser or evaporator coils, your heat pump would not work on the regular heat setting on the tstat. In this circumstance you would want to use just the emergency heat until a service tech can evaluate the system.

User Avatar

Wiki User

14y ago

What else can I help you with?

Related Questions

What does mean by thermostat?

A thermostat is a device that senses and regulates the temperature of a system, such as a heating or cooling system, to maintain it at a desired set point. It does this by controlling the flow of heat transfer media to maintain the set temperature.


What does e heat mean on a Bryant thermostat?

The "E Heat" setting on a Bryant thermostat typically stands for Emergency Heat. This setting is used to activate the system's backup heat source in case the primary heat pump is not able to meet the heating demands during extreme cold weather conditions. It is important to use this setting sparingly as it consumes more energy than the primary heat pump.


What is the thermo mean device for regulating furnace heat?

Thermostat


What does a furnace mean?

A structure or apparatus in which heat is generated, as for heating houses.


What does ER mean on the robertshaw 9420 thermostat?

According to the instructions, "Er" is displayed when the system can't keep up with the heating demand.


How do you release air in a central heating system?

Please clarify your question. What do you mean by "release air"?


What would cause heat to stop blowing on dodge ram1500 van 1998?

Unless your van has some unusual heating system, the heat going out could mean that you are totally out of coolant, or your thermostat may be stuck closed. If you have a normal heating system and your heater is still blowing air, just not hot air, it could be those two things. Is the van having any other problems?


What does therm mean in Greek?

thermostat, thermometer, thermos, hypothermia


Why would thermostat temperature stays constant when heat is on and never moves up?

Not sure what you really mean but if temp of heat does not change = likely bad thermostat etc. If gauge does not work at all but heat is fine then gauge or electrical type problem to the gauge


Heating coils made of which material in a furnace?

If you mean an electric furnace then normally it is nichrome. a heating element in a heat strip is made of what type of wire


What is radialt heat?

There is a typo in your question. Did you mean "radiant heat"? If so, radiant heat is a type of heating system that warms objects and people directly by emitting infrared radiation. It is often more efficient than traditional forced-air heating systems because it doesn't rely on heating and circulating air.


What is the function of a house thermostate?

Not sure what you mean exactly....but a thermostat triggers your heating/cooling system on and off, thereby maintaining whatever temperature to which you have it set.