It is an older Maytag over under washer/dryer and is 20+ years old but is a tank! I checked online with Appliance PartsPro.Com on these types of problems. It was the water valve where the hot and cold come onto the back of the unit. I ordered the part and it was the right part, fit perfectly and I installed it in 15 minutes. It was a simple fix and I know I saved $$$ not paying for a repairman a service call and parts mark up, not to mention having to take off work to wait for them to come! DIY is the way to go if you are even remotely handy.