Question about Lux PSDH121 2 Heat/1 Cool Non Programmable Heat Pump Thermostat

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How do you reset temperature on my PSDH121 thermostat?

Cannot set temperature - it won't stay the temp I want

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How do you increase the water temp?


Hi Donna:
The temperature is pre-set and is intended to be not too hot to inadvertently burn someone. Increasing the setting can cause a real SAFETY HAZARD, especially if small children or seniors are involved.
With that in mind, there will be a panel that unscrews from the side of the heater. After removing it, lift the insulation back and a dial should be visible. There will be numbers, and a pointer with a screw slot in the centre. Turning the pointer to a higher number will increase the temperature.
If you are going to adjust it, only do so a very small amount at one time, until you reach the desired temperature.
Remember, increasing the temperature will not give you more hot water, it will only give you hotter water. If you need more hot water, consider getting a larger tank or an "on demand" gas fired unit.
STAY SAFE!

Jan 12, 2016 | Water Water Heaters

1 Answer

I have a triangle tube challenger boiler. D.W & radiant. It has a drop in temperature about 1.5 -3 min. after turning water on. In shower and in sinks. Was able to watch tank and feel water from laundry...


A lot depends on the size of the tank. And when it heats some systems only heat at night , this is ok if the system is large , on most heaters there is a thermostat on the side that can be used to set to a higher temp. the thermostat on your heater may be faulty.

Dec 04, 2014 | Water Heaters

1 Answer

I have a 640dors reliance capacity40 water won't stay hot long(electric)


remove the two covers one high and one low and set the temp higher. This time of year with colder water comming in the house the water heater has to work harder to raise the temp of the incomming water. In the summer the incommong water is much warmer. 40 gal is a small water heater and you will only get about 15 gal of hot water with the ice cold water entering the water heater as you use the hot water. You can get a bigger water heater. even better is to go tankless and a have never ending hot water and save money at the same time.

Jan 10, 2013 | Reliance & 40 Gal Electric Mobile Home...

1 Answer

Water won't stay hot long


1) Thermostat may be bad, or out of calibration. Set temperature higher, and/or troubleshoot by type of gas control.
Copy following link to troubleshoot by type of gas control valve:
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent
http://waterheatertimer.org/How-to-adjust-temperature-on-water-heater.html


2) Dip tube broken
http://waterheatertimer.org/Water-heater-dip-tube.html

3) Water leak running hot water out of tank.
Turn off all taps and put ear against pipe listening for water leak.

Dec 08, 2012 | Water Heaters

1 Answer

Water temp stays at 160 degrees


Specific type of water heater does not show on web search.
I am guessing you have tank-type electric water heater.
Did you replace both thermostats and test elements?
Element could be cracked, thermostats can stick open, upper thermostat wired incorrectly, wire shorted.
We know that electric power to water heater is good, and circuit breaker is good.
Why is eco is not tripping? Why is TP valve is not leaking?
Copy following links for step-by-step:
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html
http://waterheatertimer.org/How-to-test-water-heater-element.html
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

Jul 21, 2012 | Rheem Water Heaters

1 Answer

Lower thetermostatv temprature to 66. it's set to 77 right now and doesn't go lower


Question is not clear.
Add a comment and say what you want to do.

You have 240Volt electric water heater.
Lower thermostat is set as low as it can go at 77.
But you want water temperature set to 66?
First thing to remember is that water heater thermostat settings are approximate since they read temperatures through the steel tank wall.
Second thing is that thermostats for electric water heater are generic, and are not made for lower temperature range settings. This is probably since most people complain that water is not hot enough.
I'm looking at a generic lower thermostat from Lowes right now. The low temperature setting is 90 degrees F.
Looking at some older thermostats from a drawer right now: one does not have a lower temperature mark, the other is a Reliance with low temp of 95, the old craftmaster goes down to 80.
So I don't even have a thermostat that goes as low as the one you have, except for gas water heater thermostats that traditionally can be set to 50 degrees for vacation mode to prevent freezing.
More thermostats can be seen on following link:
http://waterheatertimer.org/How-to-adjust-temperature-on-water-heater.html

Jul 12, 2011 | White Rodgers 0754-1 Electric Water Heater...

1 Answer

Pilot light stays lit BUT burner will not light


Sounds like gas control needs replacing. Before you do, Shut gas off at valve and your tanks and take a 3/8 or 7/16 wrench and remove the end of the thermocouple that screws in to gas control. Now spray a shot of WD-40in the hole it came out of. Now take a piece of fine steel wool and twirl it in your fingers until it's a few inches long and small enough round to put down in that hole and spin it with your fingers to clean surface where thermocouple seats, well. Use compressed air and blow it out now. Take a little piece of fine steel wool again and rub end of thermocouple that goes in the hole, so it's nice and shiny and clean. Now re-assemble, snug it up and re-try lighting. If pilot stays on, but burner won't light, and your 100% sure water is not already hot, ( check temperature coming out pressure relief valve, carefully) and temperature lever is over to hot setting, then replace gas control. One good indication of a faulty control is if you move the temperature lever all the way over to coldest and back all the way over to hottest and you don't hear it click.

Jun 12, 2011 | RTO Atwood Water Heater - 6 Gal LP

1 Answer

I have a white Rodgers ac thermostat and the temperature in my apartment stays on 88 no matter how low I set the temp. If I turn it off, of course it gets even hotter. This started happening when I pressed...


I'm not quite sure I understand what you have done but, make sure your compresor(outside is running and, that you don't have the thermostat set to "fan". You want the display to show "cool" and then adjust your temp. It sounds like you have the system set to fan and not cool. Provide me with a model number and I will see about getting you a manual.

Jun 04, 2011 | White Rodgers 0754-1 Electric Water Heater...

1 Answer

How do I turn up the water temperature on a Marathon 85 gallon electric water heater? I don't see any visible temperature control settings.


The temperature is controlled on the thermostats in the tank. They are under the two covers you see on the outside of the tank. There is an upper and lower thermostat. Make sure you shut off the power before you begin. Remove the cover and peel back the insulation covering the thermostat. Use a flat head screwdriver to adjust temp. There should be a pointer showing the temp its on now. They are probably set at 120 degrees. WARNING--turning your hot water temp above this point can cause scalding and burning in less than 3 seconds. You may have a burnt out lower element. This link below should help you

http://globalimageserver.com/fetchDocument.aspx?id=574f6c2f-32c1-4c28-824c-172bbbfe5578

This is the manual to your tank. Good luck.

Apr 23, 2011 | Rheem MSR50245 Marathon Electric Water...

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