Flame sensor might need cleaning and check connections Also check pressure switch .
SOURCE: How to install an igniter?
if the heater uses a hot surface igniter its a simple matter of unscrewing the igniter and replacing it with another unit. if it is a spark ignition, the spark wire is a heavy insulated wire that goes to the gap. check out white-rodgers for a replacement. if your furnace uses a purge mode get a purge cycle programmable igniter.
SOURCE: Coleman furnace blower runs continuously
You should be seeing 120 volts to the igniter. Anything less requires either a replacement of the transformer, start relay or control module.
SOURCE: coleman evcon Dgato7obdc
Small blower motor? Are you talking about the combustion blower if so then check your vents for blockage.. if the vents are blocked won't work... if it has a control board init it will give you a diagnostic code. Flashing light on the board... count the flashes and look up the fault on the chart in your owners manual ot on the furnace door..
SOURCE: i have a coleman/evcon electric
Have you tried to replace pressure switch for the combustion air. If your not sure where to find it if you pull the front panels off follow the flue pipe down to combustion chamber the combustion fan motor is either inside the flue pipe or out side of it not sure on the one you have but you should see two plastic tubes that connect to a barb onto the topside of the fan and one on the bottom they both should go back to the pressure switch. i hope this helps you if you have any more question or if this doesnt fix the problem just reply back to this message . Make sure fan is working when furnace starts up. It should be the first thing that comes on when there is a call for heat
SOURCE: I have a coleman evcon model dgat070bdf furnace.
Hi check the flame sensor is clean also check out the pressure switch , and check air filter is clean
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