Troubleshooting guide

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Safety Features - The remaining electrical components make up the sensors that
monitor the stoves for concerns that require the stove to be shut down.
Vacuum Switch
Vacuum Switch – Normally Open, Set Point .05” WC negative Pressure. To
troubleshoot the Vacuum switch refer to the section covering the diagnostic features of
the Control Board covering the #2 LED diagnostic light.
This switch senses the vacuum (Negative Pressure) in the Firebox and Ash pan area.
Located on the left-hand-side of the stove and mounted to the hopper. If the Combustion
blower fails, the Main Door or the Ash pan door are left open or the Exhaust Venting
system is obstructed, power to the Auger Motor will be interrupted after a 60 second
delay and shut down the fuel feed system. At this point the #2 LED diagnostic light will
start blinking.
Strong wind gusts or obstructed exhaust vents by which large amounts of soot have
accumulated, debris has blown around it, birds have built nests in it, etc. may prevent
enough Vacuum to build up in the stove body to close the Vacuum Switch. After
approximately 60 seconds of losing vacuum power to the Auger Motor will be
interrupted. The Room Air Fan and the Combustion Exhaust Fan and the Versa Grate
Motor continue to run until the Proof Of Fire switch opens and the fans shut off.
Remember: When performing daily maintenance tasks that involve opening the
Main door or the Ash pan door the control board will shut the stove down after
approximately 60 seconds. If performing several tasks that would take longer, close
the door and let vacuum re-establish before the stove shuts down and then continue.
High Limit Switch
Manual Reset High-Limit switch, 250°F Disc, Normally Closed – To
troubleshoot the High Limit switch refer to the section covering the diagnostic features of
the Control Board covering the #2 and #3 LED diagnostic light.
This is a Normally Closed switch located near the left-hand-side of the stove and
mounted directly on the sheet metal Air Jacket. Under normal operating conditions the
Air jacket temperature registers below 250°F and the High-Limit 250°F Disc-Thermostat
will read Normally Closed; this condition supplies power to the Anger Motor. During
extreme operating conditions where temperatures within the sheet metal Air Jacket
exceed 250°F the power to the Auger Motor will become interrupted and immediately
shutdown the fuel feed system. The auger will not operate until the switch has been
manually reset.