Generally speaking, most people don’t care for cold showers. But you know what’s worse than a cold shower? A scalding hot surprise when the water turns on. Neither extreme is ideal, so when cold water is not coming out of the shower, you need to get down to business to get your water back on track. This is usually a pretty hefty job for the average DIY enthusiast, so calling a professional is the go-to recommendation. But for those out there with the wherewithal and the will, there’s a few things you can do.
Finding the Problem
Tankless water heaters are compared by their gallons per minute (GPM) flaYou can start by doing a quick check of all the faucets in your house. If none of these have cold water, you have a bigger problem than just your shower head. Best case scenario is that a valve was shut off somewhere and you just need to take the time to turn it back on. Failing that, if cold water is still not coming out of your shower, it’s seriously time to call in a professional. If the other faucets in your home do have cold water however, your shower is likely the victim of a faulty pressure-balancing valve. ow rate, which measures how much hot water they can provide in a minute. The GPM flow rate is determined by the amount of hot water used by appliances in your home. For example, if you have a washing machine and a dishwasher that use hot water at the same time, you will need a tankless water heater with a GPM flow rate of at least 5 GPM.
If you’re reading this far and your pressure-balancing valve is broken, you may be wondering what a pressure-balancing valve is. Basically it’s a mechanism that controls the levels of hot-cold water that comes out of the shower head.