St Croix Stove #2 Blinking Light Error Code

Posted on by Earth Sense Energy System

If you have a St Croix Pellet or Corn Stove with the digital LED control board, there is a diagnostics feature built in to help troubleshoot in the event of an issue. This blog post will cover the #2 blinking light and some things you can check if this happens on your stove.

If the #2 light is blinking that would be indicating a Vacuum/Pressure Switch error. Some things to check when you are seeing the #2 vacuum switch error LED.

  1. Ash build-up. If the stove senses restriction with air flow it will trip the vacuum switch. Check your exhaust vent pipe, exhaust motor housing, underneath the burnpot, and ash traps in the unit.
  2. Leaky gasket seal. If the door or ash pan gasket seal is not making good contact, it will sense a vacuum loss in the stove and trip the vacuum switch. Use a dollar bill, place half in the door and half out, close the door, and then pull on the dollar bill. Should be heavy resistance. Check in multiple spots around the door and ash pan. You may also want to check your exhaust motor gasket. If the exhaust motor is removed at any point for cleaning or service, a new gasket needs to be in place.
  3. Exhaust/Combustion Motor. If the exhaust motor is not running properly or at proper voltage it will not lock in the vacuum switch. Make sure the motor and housing is clean. If you have a voltage meter you can also check the voltage of the motor when in operation. During start-up the motor should be very close to line voltage.
  4. Faulty vacuum switch or tubing. It’s possible that the vacuum switch itself is faulty and/or the tubing to the vacuum switch needs to be replaced. Inspect the tubing to ensure there are no breaks or cracks. Inside the vacuum switch is a diaphragm that opens and closes with pressure; over the years this can stop functioning as it normally should.

Always important to check the simple things first. Earth Sense offers and stocks all replacement parts for the St Croix line of stoves at the guaranteed lowest price with the fastest shipping. Please Contact Us for assistance.

2 Responses to St Croix Stove #2 Blinking Light Error Code

ronda l bond says: March 21, 2018 at 5:10 pm

mine makes a weird noise and makes the blower fan go intermittely before proof of fire. the on light and the auger lights go kinda crazy(on and off). Then the blower motor kicks on then #2 light starts blinking!! I bought a control board from you several years ago, also last year bought and installed a blower motor, worked good for a while. I am stumped. new control board???

Earth Sense Energy System says: September 6, 2018 at 12:17 pm

The control board sends powers to a limit switch (convection switch) also known as a snap disc, which in turn closes and allows power to travel on down to the blower fan once the switch closes. This switch could be faulty and therefore opening and closing intermittently. This could cause erratic blower behavior. They are heat sensitive and do fail over time. Also possible it could be the board itself.


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