Have a Frigidaire Laundry Center FFLE2022MW and I can see a flashing light under the dryer door.

SOURCE: Frigidaire Laundry center blows circuit when w/d run at same time

Okay, here's the best I can do from this distance.

The combo unit is on a 30-amp, 220-volt circuit. One cord supplies both washer and dryer.

The breaker does not trip until the washer motor starts running simultaneous with the dryer drying.

My guess is that (if the combo unit is connected correclty to the one supply cord) the dryer motor runs off the 110 volt supplied by the red/white wires & the washer motor runs off the other 110 volt leg, black/white (could be vice-versa, but that's irrelevant).

The dryer heating element runs off the 220 volt supplied by the red/black wires.

There are two most likely causes (but not the only possibilities):

- The breaker is bad -- could just be oxidation on the breaker contacts in the bteaker box -- I havae seen this conditon -- small amounts of oxidation can cause the breaker to overheat and trip -- of course, the more current the load draws the hotter the breaker gets.

- One of the motors (washer or dryer) is beginnig to fail (windings beginning to short) and drawing more than rated current which is overloading the breaker.

Checking thes two theories requires some not-so-standard equipment, and some more-than-handyman expertise. And if neither of these theories pans out, the troubleshooting gets more complicated.

So, to address your original question, "Can I fix it myself, or should I hire someone?, I would say you should hire someone. This wirite-up may give them a head start.

Let me know if you have any questions.

Charlie

P.S.
A third possibility (only possible if this tripping condition ahs existed from the beginnig of the w/d installation) is that the power cord is connected to the unit such that both motors are powered by the same 110 volt leg. Not being there to assess this, I can't say how likely this is, but it's a long shot for sure.

SOURCE: Frigidaire Laundry Center (top load) dryer stopped working

dryer tub loose

SOURCE: Can you buy a frigidaire stackable washer separately?

Have you had a qualified service man look at your machine? I would think that the burned rubber smell would direct you to examine the belt (found in the very bottom after removal of front cover).
If it is the belt it is a very easy fix on this machine. The not draining part wouldn't be related to the belt the pump that does the draining is driven by its own electric motor and is easily visible when the front cover is off. Its located on the bottom left side. If a sock or other small item manages to get over the side of the basket it always ends up jamming the pump.
You would have to take the pump apart to retrieve the item and restore pump function
Good Luck
Quentin

SOURCE: the dryer drum turns - but no heat - the manual

heck item #33

SOURCE: Frigidaire Laundry Center (FGX831CS1) overflowing.

There are a few issues that could cause the overfilling...failed water inlet valve, failed water level pressure switch, hole in pressure system air hose or air hose disconnection to name a few. Need to have professional evaluate, or it could happen again. Call home insurance if there are water damages to file a claim, and they can handle it from there usually.