Not hot enough

Bernard,
I usually will test a cup of water for 60 seconds and it should be hot enough that you would not want to leave you finger in the water more than a couple of seconds. It would not be hot enough for most people to use for coffee or some other hot beverage but it would be hot enough to burn your finger if you leave it in there for very long. If it is still lukewarm after running for 60 seconds you probably have a problem with some of the major components and depending on the age of your microwave it might be cheaper to replace the microwave with a new one. Hope this helps you!

Open the access door to the thermostat ( about 3" wide & 9" high, two screws) At the bottom of the thermostat there is an adjustment screw on an arrow and dial. Factory settings are at 120% for residential heaters. Reset to 135% is hot but it will not scald anyone. Higher temps are dangerous especially to those used to the old setting (if there are 2 doors reset both thermostats)

thermostat set too low.
leak in hot water line or hot water being used too fast.
defective thermostat

Based on your model number this furnace does not have a pilot light,instead it uses a hot surface igniter.typically it glows and when it gets hot enough the gas valve will open and the burners will light.When the igniter starts to go bad it will glow but not get hot enough to open the gas valve.If your furnace lights and the quickly goes out the flame sensor maybe dirty.

We have two of these at my work. It becomes very hot to hold after only about 4-5 minutes of running. And I do mean "hot"--hot enough to make the body distinctly uncomfortable to hold, and hot enough for me to worry about soldered connections inside melting. Connecting a dust hose to my 2 1/2" shop vacuum helps cool it a bit, but merely enough to double the run time to about 8-10 minutes. Then I set this sander aside and let it cool down for about 15 minutes before using it again. Yes it is known to get hot

This is not an uncommon problem with 'flash heaters' of this type; for safety, they all require a certain minimum of flow before the gas supply is turned on. Some brands/models have a factory-set adjustment for the minimum flow rate.
You might locate the mfr.'s website, contact them and describe your problem. This can also be caused by the modern flow-limited shower heads not allowing enough water to flow to keep the heater turned on.
If you have a retired shower head, you might try replacing the one currently used to see if it allows enough flow to allow proper operation. Either way, it is a waste of water.

you may need to clean out your hot water heater depending on how old it is and yes 80 gal should be more than big enough adj. thermostat to the next level

I have the same problem, my wife complain me everyday, now we use our coiffe machine 90$ from sears it`s still better then this 3200$....

check blower fan, and maintained gap between oven and wall at last 2 feets. some heat comes to pad very heat may be some prolem. check every thing and reply me.