Won't Bloom

[Flower Fool]

My mom has an orchid that was given to her 15+ years ago. It was blooming when it was given to her. She says it had a long stem with a lot of flowers on it. It has not bloomed since. She does not even remember what color it was. Not even really sure if it's a Cymbidium.
Would really appreciate it if someone could give me some advise on how to get this plant to bloom again.
Thank You

[estación seca]

Yes, it's a Cymbidium. Most of the commercial hybrids need cool fall nights and a cool winter in order to make flowers. She can try leaving it outside in fall and winter (now!) so long as it doesn't freeze. Winter night temperatures all the way down to just above freezing are fine.

It also looks a little dark - try giving it more light, so the leaves are yellowish green. They take full sun if there is a breeze to carry off the heat.

When was it last repotted?

[Flower Fool]

It was repotted about 4-5 years ago. It was repotted with your typical orchid mix. (Bark and Sphagnum moss) Cannot put it outside. We already have about 4" of snow and temperatures are already at freezing. It sits in a corner between a south and west window. She has tried it in a few different spots.

[Keysguy]

You may have missed the window to get it to set bud in BC. Maybe wait until next year.
Good news.....the plant looks nice and healthy.
Once the weather has moderated in the spring to where it would be safe outdoors, I'd move it out. Pick a spot preferably with maybe 3-4 hours of early morning sun that is then shaded the rest of the day. Let it get rain water and feed a basic very weak orchid food solution evry week while it is outside. Leave it in that spot until you get that first night where it's going to be below 40F, and that's when you want to move it back in to where she has been keeping it. It will have some chilly nights in the forties by then which will be perfect. By the first of Dec I bet you'll see bud spikes starting.

[Roberta]

Cyms really don't even have to get that cold... they love warm fall days with cool nights (it's the difference that triggers them.) I am seeing lots of Cym spikes now that we have had just a few weeks where nights are getting down into the low 60's F (15-17 deg C) with days still in the 80's F (27-30 deg C) When that happens in various places will vary (Canada and NE US are already getting winter weather, i'm just barely seeing fall) but that's what the Cyms are looking for to bloom. FF, definitely too late to this year to catch that window... Along with the excellent advice of Keysguy, I would also suggest repotting in the spring - the medium tends to break down after about 3 years. So it likely can go back into the same pot, but will thrive on fresh bark. For the winter, just give it as much light as you can. Near a window is good, it's cooler there as well as brighter. I grow mine quite bright - full sun just slightly moderated with 40% shadecloth all day, 12-13 hours in summer. But they ease into that amount of light gradually as the sun shifts higher. Like any orchid, increase light gradually.