Coleman eb23b not enough heat

[Kyle6825]

Hello, I have a Coleman eb23b electric furnace. When using the heat the output is lukewarm 85-90 degrees. When I remove the air filter or access pannel the output is hot around 150 degrees. Once I reinstall the pannel and filter I can hear three clicks which I am assuming are the limit switches. I have cleaned the evaporator core and removed and cleaned the blower and squirrel cage. All of my registers are open all the way. And I have changed the filter from a Merv 7 to a less restrictive merv 2 filter. What do you you think is going on? Is it common for 3 limit switches to go bad at the same time?

Thanks, Kyle

[Robert]

Change to a fibered hogs hair filter. You can get them at hvac supplies, some wal-marts and by calling Mark's store at 605-229-2627.


Thanks,
Robert