Troubleshooting guide

Page 44

Power Cord, Wiring Harness & Terminal Block

These are items that are frequently overlooked when troubleshooting the stove. When

Diagnosing electrical problems be sure to first check all wires for damage, make sure all

connections are tight. Check all wires in the Molex plug at the control board. If all else

fails check wires that appear to be in good condition for continuity. It may be a problem

that you can’t see. Use a good quality digital Volt/Ohm meter to check for Continuity.

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

– 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 or check the Troubleshooting

Flow Charts.

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 in 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 of

losing vacuum power to the Auger Motor will be interrupted after a 60 second delay. 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 unit shuts down.

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

with the maintenance.

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 Diagnostics or check the Troubleshooting Flow Charts.