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Why does the fan on an HVAC unit kick on intermitently when the unit is turned off at the thermostat?


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2008-11-16 14:29:35
2008-11-16 14:29:35

With the thermostat in the off position, the answer would most likely be the fan control or fan switch. This would most likely occur during the summer when temperatures are higher. The function of the control in normal operation is to keep the fan going to extract the balance of the heat from the heat exchanger after the burner cycles off in a call for heat. If it is a Honeywell adjustable, you can hold the dial in place and adjust the pointer that is set to the "lower" temperature of the two pointers. You would increase the setpoint of the pointer a bit. If it is not adjustable, replacing the control would be the answer if you can't live with it.

Answer It continues to run after shut off for a minute or so to clean the lines of heat/cool air. It also runs intermittantly to recirculate air to filter dust out and even out the temperature. This will also happen in the winter if you have frost protection. External frost protection set point 0-5c internal set point can vary but normally about 8-12c.


Related Questions

He had to replace the thermostat in his pickup truck. Another good sentence would be, the thermostat has settings on it to kick the heat or air on, depending on the temperature outside.

If it's a Mechanical thermostat it may be out of calibration or out of level.

Check the filter first -Improvement- The filter would only equate to less air flow through the vents. Here are some suggestions. -When you turn your thermostat to cooling, does the fan on the outdoor compressor kick on? If not, you need to check the capacitor in your unit. Also, check the fuses to the disconnect. If yes; -Check the refrigerant charge to your compressor. If you don't know how to do this, call a licensed HVAC technician.

On will turn the fan or blower on continuously and auto setting will kick off and on according to the temperature setting on the thermostat.

Originated with Harley Davidson rides - refers to kick starting the bike, or 'hog'. Turned into 'Let's kick this pig' to denote getting things started

Relay is BEHIND the fuse panel under the HVAC controls. Access is gained through drivers side kick panel.

Yes. Usually one fan or the other will be running when the A/C is turned on or in very hot weather. If one fan isn't providing enough cooling to satisfy the pre-programmed thermostat, then the 2nd fan will kick in automatically.

every body stinks u.s is awesome we kick their buts

The cooling fan may not kick when the car heats up due to dirty filters. Another reason can be a bad air pocket around the thermostat.

yes sometimes cause if it fails open the temp sensor will kick the light on tellin its too cold or opposite if the thermostat fails closed

One kicks on for normal cooling, they both kick on when the air conditioner is turned on.

either the thermostat or the fan is no good. You would need to locate the thermostat and see if its stuck open or closed!

a roundhouse is a kick that comes "around" and strikes sideways. A sideways front kick if you will, where a front kick is a groin shot. To do a roundhouse kick, you bring get in your stance. Raise up your back leg and bring it forward. As you drive your knee, pivot your foot you are standing on and twist your hips so that your kick comes around. At this point, you would be standing as if you just lifted your leg up sideways and had it bent at the knee. From there, you snap your leg out in the kicking motion. Bring it back, and then set it down. If you are having trouble picturing the kick, think of it as a roundhouse punch, which comes around in an arc. This kick does the same thing. The roundhouse kick is basically when you kick the opponent in the side of the face with the top of your foot and it turned sideways.

Answerthermostat is wired wrong or something damaged thermostat wires. check where they enter (outdoor) unit. may have abraded on metal edge.Sounds like you have a cooling problem somewhere. The light for EM heat is also what we call a "you have a problem light". Does the outdoor unit run at all? Or does your emergency heat actually kick on, heat out of ducts?yes the blower blowsheat out of ducts

There is; A goal kick Drop Kick Grubber kick torpedo kick Up and Under Cross field kick

Assuming you're referring to the HVAC blower, and not the engine fan, it could be a bad relay, the blower motor could be seized or a solenoid burnt out, it could be bad wiring, it could be a problem with the control switch.

There are many different names and kicks can be done differently, for instance a front kick can be done as a snap kick or a thrusting kick. * Front Kick * Side Kick * Roundhouse Kick * Back Kick * Crescent Kick * Stomp Kick * Axe Kick

Goal Kick Indirect Kick Penatly Kick Corner Kick Foul Kick ? Direct kick (can pass) instep kick lace kick pass back cross pass chip and many many more

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