Did you mean RM2862 (No RM2682 model
'Check' Light does NOT Blink to signal an error code
'Check' Light comes on when Flame fails to light & prove it lit
'Check' light blinking like that indicates:
*Bad wire connection on Upper Display Board
*Bad wire connection on Lower Circuit Board
*Bad Circuit Board
*Thermocouple connection OR Spark Electrode if no thermocouple (Depending on Model Production Year)
*Flame sputtering On/Off due to obstruction in orifice/burner
I would start with flame....have someone watch it while 'check' light is blinking
Good steady flame...then could be ANY of the other reasons
Next would be to check the thermocouple connections
See Pg 20 Section 7.3 to test thermocouple
See Pg 13 for Upper Display Testing
See Pg 17 for Lower Board testing
Americana & Americana Plus Service Manual
http://techsupport.pdxrvwholesale.co...ice-Manual.pdf