Lennox Hearth PS40 Stove User Manual


 
25
diagnostic codes
If the stove operates abnormally, the ready light on the control board will signal the nature of the abnormal operation. The
following is a list of possible signals or codes:
Ready light is constant red Ignition Failure
Ready light flashes red 1 short and 1 long blink Vacuum Switch Open
Ready light flashes red 2 short blinks Proof of Fire Snap Switch Open
Ready light flashes red 2 long blinks Over Temperature Snap Switch Open
troubLeshooting
Ignition Failure - Code - Ready light is constant red and ignite light flashes two short blinks
Possible Problem Solution
Hopper is out of pellets Fill the hopper with pellets
Auger tube was not full of pellets when start button was pushed When cool, empty pellets in burn pot and push start button again
Burn pot dirty - holes plugged Clean the burn pot
Igniter not functioning Replace the igniter
Igniter fuse blown Replace 6 amp fuse located on front of the control board
Control Board has no Power - When selector knob is turned no lights light up
Possible Problem Solution
Power cord is not plugged in Plug in power cord
Board fuse blown Replace 3 amp fuse located on front of control board
Wall outlet not energized Check circuit breaker panel
Board broken, damaged, or defective Replace the control board
Vacuum Switch Shuts Stove Down - Code - Ready light flashes red 1 short and 1 long blink
Possible Problem Solution
Front door is not sealing Latch or adjust the front door or replace door gasket
Ash drawer is not sealing Close latches, adjust latches, or replace drawer gaskets
Flue gas passageways restricted Clean the passageways (see page 20)
Vent pipe restricted Clean the vent pipe (see page 21)
Vacuum hose plugged Clean or replace the vacuum hose
Vacuum switch defective Replace the vacuum switch
Over Temperature Snap Switch Shuts Stove Down - Code - Ready light flashes red 2 long blinks
Possible Problem Solution
Convection blower not running Blower dirty, blower snap switch bad, or blower broken
Flue passageways or vent restricted Clean passageways or vent pipe (see pages 20 & 21)
Snap switch* defective Replace the snap switch*
* Note: The snap switch has a reset button that must be pushed before stove will function (see page 23).
Proof of Fire Snap Switch Shuts Stove Down - Code - Ready light flashes red 2 short blinks
Possible Problem Solution
Hopper is out of pellets Fill the hopper with pellets
Auger tube was not full of pellets when start button was pushed When cool, empty pellets in burn pot and push start button again
Snap switch* defective Replace the snap switch