Water doesnt get hot - Bunn GR10 Coffee Maker

Is this a new problem? Is it just running the cold out of the pipes before the hot water shows up? Is it a on demand or tankless system?

Its possible that you got a faulty thermostat that is actually sticking open and not allowing the water to actually heat up to temperature. Try checking the heater and see if you actually have heat. If not, I would start there and purchase another thermostat. It's the cheapest route and I have purchased bad ones myself.

sounds like bad head gasket or intake manifold need compression test thing that scares me is oil in water resivoir

try the thermostat, located on the top radiator hose. top side of engine. also does it steam?? does it lose water but no leak, does the heat blow hot? if your heat isnt hot and it steams and loses water you may have a cracked head or head gasket. if you have heat, doesnt lose water and doesnt steam it may also be your water pump. most pumps will leak visibly from the weep hole when running

the Model number you gave is for a Shower Head what do you mean it doesnt heat... it only conrtols the water temp by BALANCING the hot and cold water inlets does NOT heat anything if your water is cold then check another PLAIN faucet to see if your water is the same temp( cold) if it is the hot water from water HEATER is cold nothing to do with faucets

hot water is not getting to the unit, disconnect hot water hose from tap and check for blockages

I'd initially check for a cross connection (cold water leaking into hot water system). This can be done by shutting off the cold water feed to the tankless unit, then opening up hot water fixtures around the home. You should see the water come to a complete stop; if you see a steady stream of water, then you have a cross connection. The most common place for a cross connection is at single handled showers. The valve cartridge starts to fail over time.

check ur pilot light if it doesnt staay lit replace the thurmocuple

Most washing machines do not heat water, they merely let the hot water into the wash tub that comes from your house hot water heater.... when selecting warm, hot and cold water will be mixed together to get warm or when selecting cold.. only the cold water is allowed into the wash tub.. Please provide brand and model number of machine so I can tailor a reply toward your specific washer...

Faulty fill valve?
Timeing out with insufficient flow of water?
Hot water to hot and locking up valve?