Error "E" Codes

E-1:

Vacuum loss; pellet stoves require a clean, unrestricted flow of combustion air to perform safely and efficiently. Vacuum loss can occur if any of the following circumstances exist:
 

A.

The exhaust setup should be done in such a way as to keep the horizontal length to a minimum, too long a horizontal run will slow the air flow down to a point where vacuum loss can occur.  This is caused by a lack of natural convective rise in the horizontal section which means that the exhaust blower has to physically move this exhaust without the help of this natural rise.  Two to three ft. of horizontal will generally work. As for the vertical portion of the installation; it is mandatory that the vertical must be at least 3' but it can be run higher.  In this case, if the installation will require more than 15 ft of total pipe for the exhaust run, the pipe diameter should be increased to a 4" diameter at the 15 ft mark.

See Installation Page
 

B.

The unit is designed to handle a standard through the wall pipe kit which contains two 90 degree elbows.  One of which is a "clean out tee" which is placed at the bottom of the vertical stack to allow ease in cleaning of the flue pipe itself, and the other is generally placed at the top of the vertical to turn the flow of exhaust away from the structure if the flue is not being run above the roofline, before attaching the horizontal cap.  Additional 90 degree elbows to this system can add resistance, or back pressure, to the flow of exhaust which could compromise the free flow of air needed for proper function.  For "catty corner" installations an additional elbow is used.  This elbow would be a 45 degree and would provide much less resistance; therefore addition of this piece would generally not compromise airflow
 

C.

An Outside Intake Air Source is Mandatory with all freestanding England's Stove Works' pellet units!  As stated above, the free flow of air through these units is extremely important to ensure proper function.  Virtually any structure into which a pellet stove would be installed will not have enough draftiness built into it to allow for the amount of air to leak back into the structure at the rate a pellet stove will remove it, the size of the structure is not a factor in this; therefore, a buildup of "negative pressure" will occur as air is removed from the structure.  This buildup would then restrict the free flow of combustion air through the unit and will cause a loss of vacuum.  Improper installation of the outside air intake can also cause vacuum loss; the unit is designed to be connected to a 2" intake pipe which should be installed in as short and direct a manner as possible.  This pipe would have to be less than 6 ft. in length and may not contain more than two 90 degree elbows.  If these parameters cannot be met, the diameter of the intake must be increased to a 3" pipe for the entire length of the intake run.  Most basement installations would have to be done in this manner. ( See Basement Installation Page)

The intake pipe should be equipped with a screen to keep any animals, bees or foreign material from getting into the intake, but the screen used should not be restrictive in its makeup, and should be installed above the snow drift line in areas where this could be a problem.
 

D.

Vacuum loss can occur at higher elevations due to the air being thinner, installations above 4,000 ft above sea level should be done using a 4" pellet vent pipe rather than 3" and intake should also be done in 3" in most cases.
 

E.

Failure to properly clean and maintain the unit can cause loss of vacuum to occur. Proper airflow will not be attained if the unit is not cleaned out regularly. Areas that must stay clear are:

  1. The firepot itself especially the area under the wear plate must not be allowed to become blocked. This area should be cleaned out at a minimum every few days or daily if the unit is being run on higher heat ranges.
     

  2. The impingement plate (or baffle plate) should be removed weekly and all areas behind it should be thoroughly cleaned.
     

  3. The heat exchangers, which can be accessed when baffle plate is removed, should also be thoroughly cleaned.   (See Cleaning Page)

  1. The flue itself (the pellet vent pipe) should be cleaned monthly or after every ton of pellets (whichever comes first).
     

  2. The entire stove and flue system should be fully cleaned and serviced annually. Failures due to neglect in cleaning or maintenance will not be covered under warranty!

It is recommended that an ash removal system be utilized to perform cleaning on these units, contact your hearth retailer or England's Stove Works to obtain such a system.
 

F.

Other possible causes for E-1 would include; non functional exhaust blower, a loose wire from the flue blockage vacuum switch to the control board (these wires connect to the control board near the bottom of the board), a loose hose connection from the flue blockage vacuum switch to the exhaust chamber, a blocked connection where the hose connects to the exhaust chamber, or, an improperly positioned baffle plate which would allow exhaust to bypass the top of the heat exchanger, i.e..  If the baffle plate is not positioned flat against the back wall of the firebox at the bottom allowing the fire to get behind it, (this would cause higher exhaust temperatures that could damage the vacuum hose or cause vacuum loss due to lack of air density (the hotter air gets the less dense it becomes, this makes it much harder to sustain vacuum pressure)).

  1. Using alternative fuels such as dried corn or cherry pits, which tend to feed faster, have different burning characteristics and Btu outputs. These fuels tend to burn hotter, and in the case of corn, the kernels burn slower than pellets do, so they can build up in the firepot and cause the fire to become hotter than it is supposed to.

E-2:

Failure to start; Auto ignition equipped stove models (units produced in 2004 and newer), monitor themselves during the "SU" sequence (startup) when the stove is being put into use. If the unit does not reach its minimum operating temperature within the 20 minute startup period, it will shut down and display the "E 2" code. Should this occur, and the fire did not physically light, the fuel that fed through during the startup attempt should be removed from the burn pot, the burn pot area should be cleaned (if it were not cleaned prior to attempted start) and another start should be attempted. If the unit subsequently does not start a second time, the following should be checked.
 

A.

The cartridge heater itself when energized will start to glow within two to three minutes of turning the unit on. If the cartridge heater does not glow the cartridge heater itself and its connections to the control board would need to be checked.
 

B.

The burn area and the chamber beneath the wear plate should be completely clean. Ash that is left in the burn area from previous fires can retard airflow essential for a clean start.

Pay particular attention to the igniter opening to the right of the auger.  Ignition is caused by the free flow of combustion air through the chamber which houses the cartridge heater, this air is then superheated as it passes through this chamber out into the burn pot.  If this flow of air is restricted, the amount of heated air needed to light the pellets will not be present and the pellets will either not light at all or, will take too long to ignite and the unit will not have sufficient time to reach its operating temperature. To ensure that the airway is clear it may be necessary to occasionally insert a toothpick or similar implement into the igniter hole and break up the ash that would be causing the obstruction.

This should only be performed when stove is completely cold! After breaking up the obstruction, use an ash vacuum or shop vac to remove the loosened ash from the igniter hole, and, after ensuring the unit is otherwise cleaned and ready for service, attempt another start.
 

C.

When starting the unit there is no need to place any fuel into the burn pot before lighting, the unit will run itself enough fuel to sufficiently start, if the unit does not feed any fuel into the burn pot there will be no fire and naturally an E-2 code should appear. Should this be the case, inspect the auger system itself to ensure that the augers are working correctly; also ensure if they are that the fuel is not getting hung up in the hopper.
 

D.

Wet fuel can severely retard the ignition process. Pellet fuel should be stored in a dry, climate controlled area as the fuel can soak up excessive moisture, therefore, pellet bags should not be opened until fuel is needed.
 

E.

The position of the cartridge heater in its chamber can effect lighting as well, if the cartridge heater is not properly centered on the hole in the burn pot, or if its depth back into that hole is not correct it can have the effect of blocking the opening with its own tip, restricting airflow. Also, if it is not centered airflow would not effectively surround it before reaching the fuel, causing inconsistent starting.
 

F.

Other things that can cause a failure to start include:

  1. Non functional exhaust blower,  This would give an E-2 followed by an E-1 as stated above.
     

  2. Top or bottom auger motor not running, no fuel flow would result in a fail to start.
     

  3. A non functional or disconnected heat sensor, if the unit does not read sufficient heat within the startup sequence it will assume that the unit did not start and give an E-2 code.  This can happen with a bad heat sensor even if the unit starts normally and does get hot, and a mis-programmed "air on temp" setting, must be on 1.

E-3:

Over temperature limit: This unit has the ability to moderate itself should the unit attain too high a temperature.  In some cases the unit will display an E-3 and go into a cool down sequence, in other cases the top auger will be interrupted until the unit has cooled enough that it deems itself safe to continue running.  The following are common causes for this to happen:
 

A.

Smaller pellets can feed through the system faster than normal sized ones (about 1" long on average is normal size for pellets). This happens because the smaller the pellets are the more of them will settle into the top auger at a time which causes the unit to feed more fuel than normal in each feed setting.
 

B.

Running heat range higher than blower speed, the room air blower not only blows the heat into the room, as it is doing so it is also providing a cooling function to the unit internally. As room air is blown through the unit, it removes heat from it, thereby cooling the unit down. If not enough room air is moved through the unit, the heat then builds up inside the unit until over temp limit is reached.
Note: this can cause damage to the unit if allowed to happen frequently.

If you have any further questions or concerns, please contact Customer Service at:
1-800-245-6489

Copyright © 2005   England's Stove Works, Inc.   All rights reserved.
Revised:  10/23/2007

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