Heated Bed Stopped Heating

My heated bed started acting funky yesterday. LCD shows target of 60C. Bed doesn’t heat up. I try Prepare > Preheat PLA and the temp doesn’t rise. I checked for loose cables. Any ideas?

Oops, found a loose connection. The connector slid right off the wires. Is there an easy way to release those clips so I can attempt to tighten the crimp? If not, what are the correct connectors, crimper, pins, etc from DigiKey so I can order and do a good job. Thanks!

Also, does polarity matter on this connector?

The thermistor or heater connector? I’m guessing heater from your symptoms
I’ve attached pics of both connectors apart

If you want to crimp the thermistor pins “correctly” (you can “cheat” with a standard crimper), you need a (not cheap) JST crimper http://www.amazon.com/gp/product/B00IWD9XT6?psc=1&redirect=true&ref_=oh_aui_detailpage_o08_s00
The pins for the thermistor connector should be (the mating connector is linked) https://www.digikey.com/product-detail/en/0016020102/WM2510-ND/115053

I’ve having a tough time tracking down the digikey/mouser connector item #, but they are these “power pole” style connectors: http://www.amazon.com/gp/product/B000X4OMIE?keywords=power%20pole%20connector&qid=1446160395&ref_=sr_1_10&sr=8-10


Thank you!