Hi All,
Pellet stoves are not toasters. You don't just plug 'em in and go. Be sure to READ THE MANUAL before installing. This will guide you thru proper set-up and operation. The by-guess-and-by-golly approach will only cause you stress, headaches, and anxiety. The directions are quite clear on how the board works.
Mention made here in one of the posts of a blinking #3 light on the control board. The stove has several safety features that are supposed to shut the stove down if it detects a problem. Rather than unplugging your stove each time to reset the board, check to see what this indicator is trying to tell you. There is a reason you are getting this fault code. If you ignore it, you could end up causing yourself extra work, or worse... an expensive service call / repair.
Always install the stove using 4" pipe. With horizontal terminations, be sure to include at least 3-to-5 feet of vertical pipe to improve draft. Combustion air (outside air) is highly recommended. If installing in a basement area, I would say this is an absolute requirement. Stove can run in manual, hi-low T-Stat mode or Auto Stat mode. For folks that want to run in one of the two thermostatic modes, the factory supplies a wall-mounted thermostat with each stove as standard equipment. If you did not get this stat, be sure to use one that is millivolt type (not 24 volt).
Couple of things here with the Enviro M55 that make it different from other Enviro stoves.
First, the damper on these units comes preset from the manufacturer (the Omega had to be set on initial firing). This is an approximate average setting that will work for most typical applications. As per instructions in the manual, any initial air adjustments should be made using the circuit board (not the slider / damper). Fine tuning here allows you to increase / decrease feed rate for the pellets, and also allows you to increase / decrease combustion blower voltage which will increase / decrease air moving thru the stove. If fine tuning is required, do this first prior to opening or closing the slider/damper door. I have installed several of these stoves and not had to touch the slider / damper a single time. That said, every install can be different. All depends on vent configuration, elevation, and fuel type. A pro will use a magnahelic to ensure the air is set exactly where it should be. Unless you want to invest in a mag, do-it-yourselfers will have to use the trial-and-error method.
Stove has three pre-sets for fuel type: Premium / Regular / Multifuel. Poorer fuels may require more time in the burn pot for more efficient combustion. Each of the three programs will automatically change the fuel feed rates and agitator rotation intervals / self-clean intervals accordingly.
As you may have read on this site, you really have to watch with fuel. Even if the fuel is labelled "PREMIUM" - it may not be. Aside from ash content, pellet density is also important. Also, commonly overlooked is moisture content. Do not buy old fuel -- especially if it has been stored outdoors. Pellets will absorb something like 7 times their weight by volume. This is why the reject pellets are often sold as kitty litter or horse bedding. The really nice thing with these Enviro stoves is that they have the ability to easily cope with the poorer fuels. If you notice that you have red coals or unburned pellets spilling out the sides of the pot, might be an idea to switch from the premium setting down to the regular setting. Worst case scenario, go to multifuel setting.
If you are still having problems after reading the manual, there are some good training videos for the M55 posted on YouTube.
Just go to Google and type in "Youtube Enviro M55 Pellet Stove". You will have a wide selection on everything from operation, to basic troubleshooting and repair.
One final note... be sure to follow the manufacturer's advice for routine cleaning & maintenance. The more fuel you burn, the more often you have to follow the routines. If your stove has been left unused for a long period of time, do not assume the stove is ready to go. Often, little critters (mice, insects, birds etc.)can move in over the summer and build nests within air passages, combustion blowers or vent pipe.
Regards!