Originally Posted by izzaboomer
2016 Sunseeker 3010ds. First time out in cold weather with this camper. Furnace will light and run for a couple minutes and then flame goes out The unit will try and relight but fails. Please help it is getting cold.
4. Burner ignites, but goes off and into lockout:
a. Check to be certain that flame sensor is over slots in the main
burner and that the main burner flame is burning against the tip
of the flame sensor - adjust by bending sensor probe. NOTE:
Sensor probe should be in the inner blue cone of the burner
flame (approximately 1/4" t o 5/16" above burner).
b. Burner still goes off and into lockout - check wire connections
at flame sensor and at module board.
c. Wire connections OK - check continuity through flame sensor
d. Continuity of flame sensor wire OK - check with micro amp
meter in series with flame sensor and flame sensor wire to be
certain that the flame sensor is generating at least seven
micro amps within seven seconds after the burner is ignited.
Connect meter as follows: (+) to sensor wire, (-) to sensor
probe. Adjust position of sensor probe, check for carbon
deposits on sensor probe if reading is less than seven micro
e. Flame sensor circuit generating at least seven micro amps,
but burner still goes off and into lockout - replace module
Above is a link from the library in the green bar at the top of the page. open the link and down load it and open the down load. the information I coped above is on page 29 of this link.
A common problem with the flame rod in your home or RV furnace is that it corrodes with white rust or red rust. The rust acts as an insulator to the micro amps and needs to be removed. This can be cleaned off with steal wool or 400 grit sand paper or a new flame rod so the rod has good contact with the flame to pass the micro amps.
Hope This Helps Tim