I have a Lennox electric heater that's about 6 years old.. We have annual maintenance on it, last winter it wasn't blowing hot air so we called them out and they replaced a part (possibly a limit switch but could also be a relay) It was instant warm air..

Same thing has happened this winter except a different furnace guy came out (same company) came out and said everything was working fine. Which is weird because the furnace has been running non stop for 4 days and it struggles to get above 71 degrees in daytime, it was 67 degrees this morning at 9am.

I checked the switches and they all seem to have power, my next stop is replace the relay as I have no real way of testing it.. Can anyone suggest I do anything else or replace anything else ? I know the smart thing to do is call a different repair man but this last place just cost me $$$ and said all is fine.. (which it obviously isn't).

TIA

If they didn`t do their job,, you shouldn`t have to pay again, except for maybe a part that was overlooked, complain to the owner,, most companies want to keep their regular customers

if they didn`t do their job,,,,,you shouldn`t have to pay again,,except for maybe a part that was overlooked,,complain to the owner,,,,most companies want to keep their regular customers
We already said there is something wrong but the guy said its working right. In all honesty he just came to do scheduled maintenance. I told him about not blowing hot air and he said its normal.. I know that the furnace shouldn't be running 24/7 without the house getting just a tad warm.