Package unit heats the house, then when the thermostat reaches the preset temperature it kicks off. when the temperature drops in the house and the furnace kicks back on -- only cold air blows out -- we have to go outside and pull the disconnect, wait a second or two and then plug it back in. By the time you get back in the house it is blowing warm air again. We have woke up several mornings with the house almost the same temperature as outside. Please Help! April in Weston, WV
Sounds like you have a problem upon start up of heat. Your safteys maybe shutting you down, and restting voltage to your curcuit board allows you to have another heating cycle. Honestly you may due justice calling a tech.
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The fan relay is stuck in the on position. When the temperature drops the heater does not ignite because the fan is already running and ignition is locked out after the heat cycle starts an the fan turns on
Sounds like fan & limit control
If temp on limit reaches max temp what happens gas valve deenergized,as MTR continues to run begins to lower temp. Thus reenergizing valve
Check filters,MTR speed for heating
See if it happens only when your temperature of the room is more than 3 degrees of your setpoint temperature. Since you have a heat pump, the auxiliary (electric heat strips) is use for backup of the heat pump when it can't keep up. The heat pump will run by itself if it can maintain temperature within a couple degrees. If it is too cold outside to handle the load or you set the temperature more than 2 degrees past room temperature, the auxiliary will turn on. The thermostat has a memory of how long it takes to reach desired temperature. If it goes into auxiliary mode trying to satisfy setpoint during the last call for heat, it will start the next call for heat in both aux & heat pump mode until the thermostats algorithm (timed program) allows only the heat pump to run. Not sure if you have an air to air, or geothermal heat pump. The outside air temperature will affect only the air to air system ie. when the temps drop outside, the heat coming out of your vents will be cooler...the air to air systems drops efficiency when the outdoor air drops.
If your thermostat has an emergency heat setting this means you have a heat pump system.
Yes you need to set the thermostat to heat for heating the house.
The emergency heat setting should never be used unless your outside unit is not functioning.
The emergency heat setting overides the heat pump (the outside unit will not be energized).
The emergency heat setting will run the auxillary heat (heat strips) only.
When the thermostat is set in the heat position the heat pump will run to heat your house.
If the heat pump can't keep up (extreme cold) then then the auxillary heat will kick in to augment the heat pump until it satisfies the thermostat settings. If your room temperature gets 2 degrees below your thermostat setpoint, your auxillary heat will kick on. Example, say you are going to be gone a couple of days and you turn your heat down to 60 degrees. When you return and it is 60 degrees in your house, you turn the thermostat up to 70 degrees. Since you are turning the temperature up 2 degrees or more (10 degrees in this case) from the 60 degree room temperature then the heat pump will come on and the auxillary heat strips. The unit will continue heating like this until the temperature in the house gets to 69 degrees and the heat strips will turn off and the heat pump will continue to run until the 70 degree setpoint is reached.
Hope this helps.
The heatpump is your 1st. stage heat, when you have a call for heat it will bring on the outdoor unit.
When the first stage heat can't heat the house and the indoor temperature drops 2° or 3° then 2nd. stage heat will kick in and maintain the house temperature at about 2° or 3° below the temperature setting.
If you outdoor unit fails or goes into defrost then emergency heat will kick in and keep the house at 2nd stage temperature approximately 2° or 3° below thermostat setting.
If you have an outdoor thermostat or balance point setting on outdoor board, it will shut the outdoor unit off at a certain set outdoor temperature and the 2nd stage heat will be primary heat for the house.
I believe the unit you are describing is a heat pump. Heat pump are great when the temperature isn't below 30 With low ambient temps. outside it is much more efficient and comfortable to run aux. electric heat from the heat pump.
ok...where to start.lol ....the thermostat is just a switch.It will tell the unit to run or not run.if you measure the temp with the heatpump running,the air is warmer than 68 but it feels cool to you because your body is 98.6.The unit will run more often and for longer periods when the temperature drops outside for a few reasons.First,your house has more of a load to heat,meaning you have more heat loss because of the difference in temperatures outside and inside.Second,your heat pump pulls heat from the outside air.The colder the air outside,the less btu's for it to pull.If you have anymore questions firstname.lastname@example.org Hope this helps,Dave