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My weil-mclain boiler low water level light is on

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2 Answers

I have a mclain 68 boiler... I have no power going from boiler to thermostat. what can that be?


Could be a disconnected wire or failure of the thermostat power supply.

Oct 23, 2016 | Heating & Cooling

1 Answer

Light the pilot light on weil mclain gas boiler


Joanne If there is a standing pilot on the boiler. Put the gas valve to the pilot setting and push in on the valve while holding a long match or BBQ lighter @ the pilot assembly that is behind the small access port at the top of the gas train assembly. Dont hold the pilot knob doun without having a flane @ the gas outlet of the pilot assembly or gas will build up and could blow out of the port and hold the gas valve in for about a minute or two and let it go it should stay light when you let it go .If it does not sta lit and it IS a standing pilot there- is a thermo-coupling that may be bad If the pilot does not stay lit.
If there is an electronic ignition rather than a standing pilot then you do not need to light it will light itself if the electronic ignition is bad or if the flame sensor is dirty. If you remove the pilot assembly from the gas train and clean the flame sensor rod with a piece of .0000 steel wool it could help. If not you may want to call a licensed pipe-pitter ( OR plumber depending where you live and the local codes).
If you don't thing you could do it yourself then call a licensed pipi-fitter or plumber. (Gas only has to leak once for there to be a problem so please do call someone licensed if you don't think you could do it your self.), http://www.weil-mclain.com/en/weil-mclain/products-services/
Here is a link to the manufacturer you should be ale to fing your equipment and the install instructions, if you look around .You can download a PDF and print it
Good luck and stay warm

Feb 08, 2014 | Weil-McLain CGa-25-SPDN, NG, Gas Fired...

1 Answer

Operating worcester bosch 240 gas boiler


  1. If there is no water on the floor, your crack is probably OK so far. The water thing is a worry though. NEVER fire a boiler that is low on water. Adding water to a hot boiler will crack it. Tell me all you can on what components you have in the water and gas lines.

Nov 15, 2013 | Weil-McLain Heating & Cooling

2 Answers

Water leaking inside boiler keeps putting out the pilot light


Most likely cracked core.Has low water cut off alarm and auto make up feed been on?Have you been manually adding water?

Feb 18, 2013 | Weil-McLain CGa-25-SPDN, NG, Gas Fired...

1 Answer

Have a water leak inside boiler keeps putting pilot light out


Not good at all. Check for a fill level probe/float/sensor that may be acting up causing the unit to over fill, or you may be looking at buying a new boiler.

Feb 18, 2013 | Weil-McLain CGa-25-SPDN, NG, Gas Fired...

2 Answers

Make : Weil-McLain Model : CG-5-SPDN Series 12 I have the above mentioned boiler which is located on the 1st level of a three story one family house, the area where the boiler is located is insulated.


You don't have an optimum distribution of steam in your house. Try closing a little bit the valves supplying the heaters in the lower floors. Close a little bit more until you get the desired balance.

Nov 06, 2012 | Heating & Cooling

1 Answer

LOW WATER CUTOFF IS CHATTERING ON WEIL MCLAIN BOILER MODEL EVH95. WHEN THE CUTOFF IS TAKEN OUT OF THE CIRCUIT THE BOILER FIRES, BUT WHEN IT IS PUT BACK, IT WILL NOT STAY LIT?


Don't jumper that control out. You likely have some thing going on with the make up water. best i can do with information provided. T

Jun 16, 2009 | Heating & Cooling

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