I have a Carrier 58STA135 furnace. When asked for heat the little blower fan comes on for a minute then the gas turns on(can hear n smell it) but no pilot ignition. Tries for 3 times (per the code description) and goes into ignition lockout. Code 14 and 34. I'm not electrically proficient so are there some easy checks before I spend $$$ and wait 2 days with no heat?