SOURCE: weatherking furnace
Easy to fix. Looking inside the burner box, you should see a rod that extend into the flame. Sand this rod with sand paper and try to start the furnace again. if this does not work, replace this part.
Thx,
Peanut
RepairUSA
SOURCE: Goodman GMS90904CXA Wont ignite, light blinks 3 times
Ok, you either have a inducer fan issue or a pressure switch issue or a plugged vent pipe. The inducer turns on to establish a draft for the exhaust. If it is not working you will get this error code. If the pressure switch does not sense pressure caused by the inducer, it will give this code. If either the intake pipe or exhaust pipe is blocked (even y just a little) it will give you the same error code. If the condensate hose or receptical is plugged, again it will give you this error code. Good Luck!
SOURCE: weatherking furnace flashing 5 times.......
Sounds like it it isn't the igniter but probably the pressure switch. You can only tell by the clicking noises as they system goes through it's safty checks prior to the call to the igniter.
SOURCE: furnace wont start. heil gas furnace. on initial
Yes, inspect the air intake, exhaust pipe, filter and condensate piping for blockage or moisture. Also check for a hole in the hose that goes from the small exhaust blower to the pressure switch or a bad connection on the switch or control board. You may be able to temporalily jump the switch for diagnostic purposes only.
SOURCE: ducane mpga100b4b furnace and it wont light, it
Isnt there a lable on door or cover telling what those three blinks mean.
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