Some Whitfield models, including the Optima 2, Optima 3, Profile 20, Profile 30, and the TP series, have a photoeye proof of flame sensor instead of the low limit switch.
This photoeye sensor detects whether a flame is present before signaling more pellets to feed. Try cleaning the photoeye lens and checking the position of the photo eye by shining a light directly in the place where a flame would normally to determine if the photoeye is detecting a flame properly. The high limit switch may have tripped. If this switch is stuck open it would prevent the control board from engaging the blowers and auger motor.
Make sure the stove is cool or has been shut off for at least an hour, before either bypassing the switch to test it or checking it with a multimeter. After that, you can use a jumper wire, or a paper clip to make a connection between the two contacts.
My stove comes on but 5 minutes or so shuts down. Here you can use an air compressor to clean the burn pot. Also, you can clean the pot by shaking it. If you have a perfect-sized burn pot, it should perfectly fit over the combustion air tube.
The system works with a tube which is known as a combustion air tube. The tube receives the fresh air to operate perfect combustions. This process of combustion can be hampered if there are obstructions inside the tube.
It may malfunction if there are any problems with the wires. Remove The Obstructions: To clean any jam inside the tube, first remove the damper and see if there are any obstructions inside the tube, even in the damper. There can be elements restricting the airflow of the combustion air tube. If found, clean the jam particles. Check The Wiring: Make sure that all the wirings are properly connected. Faulty wiring can shut off the fan of the combustion air tube.
Plus, find out if there is any cut-up or damage in the whole wiring. If any damage is found, repair the wiring. Fire needs air to burn fluently. The combustion blower or the feed motor sucks air in the burn pot to allow combustion.
You can solve this issue in the following method:. Clean The Feed Motor: The feed motor may fail to supply air if it is clogged or covered by too much dust. As a result, the stove will shut off. Here, you should clean the feed motor perfectly. To clean the dirt from the feed motor, you can use a blower to make the cleaning process simple and easy. Fixing The Motor Wiring: Faulty wiring can result in combustion blower failure. Check if the wiring is okay.
Sometimes it may not be possible to fix the wiring. Replace the blower in that case. Pellet stove requires outside air supply in the stove.
A pellet stove draws in air through the grills on the sides of the fireplace cover. The stove may not work if the airflow is restricted. It can be the unwanted obstruction in your pellet stove preventing the airflow.
Cleaning them thoroughly will make your pellet stove function better. Reposition Your Stove: If your pellet stove is located inside of the fireplace, then it can be a reason why the pellet stove keeps shutting off. Reposition it. This will improve the airflow and prevent your stove from shutting down. Basically, these were the 5 main reasons why your pellet stove keeps shutting off. Our solutions will definitely help you deal with it.
Such conditions can damage your pellet stove permanently. In that case, you will have to replace your pallet stove. That will be an expensive solution. The best option for you is to prepare your pellet stove to avoid it shutting off abruptly.
There are two ways for you to do that. The first option is to set up the pellet stove in the proper way. For more information and to see what maintenance is required for our own stove see our article on pellet stove maintenance.
Using high quality pellets in line with what the manufacturer of a particular model of pellet stove recommends will help to keep a pellet stove burning efficiently and help to minimize the chance for blockages or other problems to occur.
For example, the manufacturer of our own pellet stove recommends a certain class of pellets to be used , which in our case is Class A1 pellets. Using lower quality pellets with higher levels of moisture and ash can increase wastage, emissions and smoke production and potentially lead to more problems with a pellet stove such as blockages, smoke or blackening of the glass.
A pellet stove that keeps shutting off is a sign that the stove requires cleaning, as either the fuel or the air is being blocked from getting the fire.
The combustion chamber and hopper should be cleaned thoroughly. A pellet stove shutting off may also signal that a part is worn and needs replacing. Cleaning a pellet stove will usually help stop a pellet stove from shutting off, in particular the burn pot located in the combustion chamber and the hopper.
Also be sure to use the correct size of pellets. For example, the maximum length of pellets we can use for our pellet stove is 25mm as using any longer pellets can cause a blockage within the auger and the stove will shut off as a result.
Cleaning the burn pot and the area where the air comes into the combustion chamber can help prevent a fire in a pellet stove from going out due to lack of oxygen. If your pellet stove keeps going out then ensure to take a look inside the hopper for any signs of dust build up at the bottom or within the auger. Take a look up the auger chute if possible to see if there are any blockages and clean if necessary.
Ensure that the burn pot and the air inlet to the combustion chamber are cleaned thoroughly before each fire to aid in airflow. A pellet stove burning black can be due to either a problem with the pellets or in most cases a problem with the air supply. A fire will struggle to burn the pellets and produce more soot if not receiving enough oxygen.
Check any gasket seals for signs of damage and check the flue outlet that connects to the chimney flue system for leaks. The most common place for a pellet stove to leak and a smoke smell to be experienced is from the flue system out the back of the stove , in particular the connection between the flue socket on the stove and the rest of the flue.
Another potential location for a leak would be the gasket seal on the door to the combustion chamber. Thoroughly clean the stove including the ignition area to help resolve the issue but help from a technician may be required to diagnose any other causes. If the ignition is blocked with ash or unburnt pellets then ensure to clean this area thoroughly and also before each fire. The ignition in our pellet stove is located below the burn pot and we clean this area before every fire. The initial ignition of the pellets is commonly carried out by hot air that is sucked through the fume extractor and around the ignition in the combustion chamber.
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