Enviro M55 Magnahelic Readings

[JJD_ENVIRO]

I used a Magnahelic gauge so I could set the damper correctly on my Enviro M55 pellet stove. The manual stated that it should be between 0.15 and 0.17 on high. When adjusting the damper, the lowest I can get the reading is .21. Does this indicate something else is wrong with the stove? Is it getting to much air from somewhere else or is this even a concern?

To get this lowest reading I have the slide damper pushed all the way in.

 

[Ssyko]

Where is the Combustion trim set?

 

[JRemington]

Where are you taking the reading from?

 

[JJD_ENVIRO]

I am taking the reading from the 1/8" hole located on the right of the ash tray. Manual states that is where it should be taken from.

Combustion trim is set at 3 (middle setting). I played around with the trim (both up and down) and it didn't seem to make any difference on the gauge.

 

[JJD_ENVIRO]

When changing the combustion trim up or down I would wait for a minute and then check the reading again.