❖ The hopper lid safety switch is faulty or disconnected. Make sure that the switch wiring is properly
connected. If it is, the hopper switch may be faulty. Verify the proper function of the safety switch (see
Section 10.2: Testing Components). Replace if necessary.
10.3.8 POWER LOSS
❖ Power was interrupted while the furnace was functioning. After the cool down cycle, the furnace will
restart using the last settings. Press "RESET" to go back to the Main Status Page.
Note: For a short power failure (less than 5 seconds), the furnace will continue to function at the selected
speed.
10.3.9 COMMUNICATION ERROR
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