On the blink
Definition 1 of 1
Pro Tip 1/3Colloquial Usage
Used in casual conversation rather than formal speech or writing. 
Sorry I'm late, my bike was on the blink and I had to walk.
Pro Tip 2/3Technical Issues
Often refers to technological or mechanical items, like appliances or vehicles. 
Can you check the heater? It's on the blink again.
Pro Tip 3/3Temporary State
Implies the item is not permanently broken and may be fixed. 
Let's not toss the blender yet; it's just on the blink.