Question about Amtrol Water Heaters

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Adjusting pressure tank set at 48 lbs and pressure switch is a 30 of 50 on. pressure will drop fast to below 30psi and some times it will shut off and not come back on for a minute or two. then will run a few times then do it again. it is a (well-x-trol lx203 mostly when trying to run washer and or take a shower. It seems that the tank is not holing water the bladder? no holes, no water coming out of top. and it is a new one? can you help. Gil @ eeawk@comcast.net

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Pressure tank should be charged to 2 pounds less than your lowest pressure (ie28psi). Must be set with system under no (0) pressure.

Posted on May 19, 2009

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AMTROL WH7P-41 GAL TANK. 12 YRS OLD. BOILER PRESSURE IS INCREASING ABOVE 30PSI, AND DUMPING SMALL AMOUTS OF WATER FROM RELIEF VALVE ON BOILER. Do I replace coil?, or buy a new tank? Thank you


do you have a pressure tank as part of your water heater and water pipes? if yes, check to make sure tank pressure matches your incoming water pressure from your municipal hook up

Aug 18, 2015 | Amtrol Water Heaters

1 Answer

My AMTROL water well tank is copying the pressure of the prussure switch


Sand the points on the pressure switch
Replace pressure switch
http://www.amazon.com/dp/B000BQSERE/?tag=waterheaterti-20

Test you are getting 240Volt to pressure switch
Turn breaker fully off and then fully back on

Replace control box or replace start capacitor:
http://www.amazon.com/dp/B0060C7GFO/?tag=waterheaterti-20

Drain tank, and replace the air valve
http://www.amazon.com/dp/B000BQYKJK/?tag=waterheaterti-20

Gene

Aug 22, 2014 | Amtrol WX-302 WX-302 150S1, 86 Gal...

1 Answer

Wickes 102 combi boiler constantly loosing water pressure


It sounds like your thermostat could be the problem. Have you noticed the boiler cutting off at all, or does it run continuously until it goes out on low water?

You stated, "when boiler is on", so I am wondering how you get the boiler on. If your boiler is controlled by a thermostat, you need to check it for a cold draft possibly from behind the thermostat in the wall where the wires come through. The thermostat should never be on an outside wall. The thermostat could be defective.

An aquastat can also control your boiler. If you have an aquastat, check the setting, typically 175 - 180 degrees. You should also have a "high limit" which should be set at 210 - 220. Some people run that high side limit higher; not a good idea - defeats the purpose. If the aquastat is set too high, the boiler will operate too hot and the problem you have will occur.

"pressure rises and pressure relief valve opens" This could mean that your pressure switch is prematurely venting. Check boiler temperature to see exactly at what temperature the T&P valve purges. If it blows off below the high side setting, either adjust or replace. The T&P valves are usually not adjustable. That blow off temperature is stamped on the head of the valve. So, if it discharges too soon, replace it.

Have you actually seen evidence thgat the T&P valve is opening? You may have a bad bladder in your expansion tank and your system may have air in it. Your boiler should have 12 psi when cold and 20 - 22 psi when operating. Check your boiler pressure guage.

"
this eventually drops below the minimum operating pressure" Technically, there is set point for a NO MINIMUM OPERATING PRESSURE. That is a function of the amount of water in the boiler. If the T&P is blowing off, it will vent water from the boiler and the boiler pressure will go down. There is a minimum operating TEMPERATURE.

Your boiler could be low on water. You will have to manually fill the boiler. Be careful of thermal shock to the boiler. Feel the piping, and fill only when the circulator is running. Make sure the water is not going directly into the boiler. The supply water should go into the circulating supply side which feeds the radiators, radiant floor, or base board circuits.

All this will adversely affect your hot water. The heat exchanger for the potable hot water may have scale build up in it. Using the hot water keeps the boiler running, and a scaled heat exchanger will give you cooler hot water and the boiler keeps running. If this is a problem, you will need to replace the heat exchanger. A better idea is to not use the boiler for your domestic hot water. Why run the boiler in the summer?

Feb 02, 2013 | Water Heaters

1 Answer

My pressure relief valve on my boiler is allowing water to pass through constantly.how do i adjust it to stop the water flow? only have about 15 pounds of pressure in system


Even a small amount of crud on the rubber washer/sealer can cause the valve to seep. Some valves can be taken apart and cleaned but it will be better to replace the valve. They can be found on line for around $12 or more. You will have to shut off the water in take valve and drain most of the system unless you have a main line shut off valve so the system wont drain back into the boiler. These valves are usually set at 30PSI.

Feb 21, 2011 | Watts Regulator Temperature and Pressure...

1 Answer

Hot water tank does not work when shower is on, it does however work when the faucet in bathroom is on. It quit working in the shower about a month ago.


  1. COLD MIX, HEATER DEACTIVATES
    If inlet water temperature is over 70°F due to geographic location, water maybe very hot out of the tap. This requires a lot of cold water to be added with it in order to attain a useable hot water temperature. The addition of too much cold water will overpower hot water demand from the tankless water heater. This slows the flow within the tankless water heater, decreasing it below activation point, which shuts off the heater. The end result is nothing but cold water coming out of the outlet. See: TWH E2-04 Overcoming fluctuating temperatures [PDF].
  2. FLUCTUATING WATER PRESSURE
    If the water pressure in the home is erratic and the water flow is not consistent while a tap is opened, then the temperature of hot water will fluctuate. The minimum water pressure for the home should be 30psi or greater. For people on well systems the minimum pressure range is 30-50psi. The use of a pressure reducing/regulating valve is an effective way to maintain constant water pressure to the water heater. Watts brand 25AUB- ¾" or N35B-¾" pressure reducing/regulating valves or equivalent is suggested.
  3. CHANGING FLOW RATE
    Major changes in flow rate can adversely affect the output water temperature of the heater. Increases from one major fixture running to multiple fixtures running at one time can cause the temperature to fluctuate. Stay within the heater's specifications. See: TWH E2-03 Outlet temperature vs. flow rate [PDF].
From the Bosch website.

Good Luck,
Gary

Dec 16, 2010 | Bosch PowerStar AE125 AE125 Whole House...

1 Answer

How do you inscrease the pressure setting on a watts 740 relief valve. It is suppose to be adjustable to 75 lbs and I see nowhere to adjust it.


Hello The 740 is NOT EVER!!! adjusted.It is factory set.It can be purchaced at any PRE-set rating from 30-75 LBS.You MUST match the rating of the old one.If in doubt use the 30# to be safe.

Sep 09, 2010 | Watts Regulator Temperature and Pressure...

1 Answer

Hello,


The pressure tank psi may be too high. To set it you get the system to pressure up and stop then check that water pressure. Whatever that is, is what the tank should be set at. Too much air pressure and the water pressure will suddenly drop before the pump kicks in.
To set the tank properly turn off the pump, drain all water pressure, then set the air pressure in the tank to the same as the water pressure was. Turn it back on and check again.

Apr 14, 2017 | Water Heaters

1 Answer

My bosch aquastar 2400 shuts off sometimes during a shower


It sounds like you have a well. Make sure the water pressure does not dip below 30PSI. Otherwise, the gas pipe or the CO2 levels need to be adjusted by a qualified gas technician.

Apr 11, 2010 | Bosch AquaStar 2400ES-NG

1 Answer

Water pump cycles to often. When pump turns on, pressure gauge shoots up to 50 lbs right away without pumping much water.


Sounds like a well fed system with a pressure tank that has lost its air charge. Check for a water tank with a tire pressure type stem fitting, should also have a pressure gauge. Most newer tanks have a rubber diaphram inside to keep the air and water from mixing, but a lot of older ones don't and the newer ones will develope a leak that will produce the simpoms you describe. Try adding a few pounds of air pressure to the top of the tank and check for leaks. Warning: Compressed air can escape explosivly if the tank is badly rusted out but if your water pressure goes to 50# without the tank leaking, it should be safe to add up to 25# of air. The air charges the water system and allows the pump to shut off until enough water is used to lower the pressure back to set points on the control switch. It's not a good idea to adjust the set points on the switch unless all parts in the system have been checked for safety to the new pressures.

Aug 13, 2009 | Water Heaters

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