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Thermostat is not switching on boiler.


There are many ways for a hot water boiler to be controlled. One of them is to have an 'on-board' aqua-stat that cycles the boiler burners to maintain water temp set-point and the space thermostat controls only the circulating pump. There is no way of knowing if yours is set up this way, but try turning the thermostat on and off and see if the circulating pump cycles with it.

Volumns can be written on boiler control but with the limited information provided we can only guess.

Aug 25, 2015 | Heating & Cooling

1 Answer

Utica furnace hot water system problem


Check the heat Antisapator on the thermostat, or replace the thermostat.

Nov 13, 2013 | Heating & Cooling

1 Answer

Just fitted a gasslin thermio touch room thermostat and my boiler won't turn on


YOU SHOULD HAVE A LIVE IN & A LIVE OUT THE NUETRAL WIRE IS NOT USED, SO TAPE IT OFF & HOOK THE YELLOW WIRE WITH STRIPE IN IT'S PLACE. HOPE THIS HELPS, GOOD LUCK.

Dec 27, 2012 | Heating & Cooling

1 Answer

Boiler pilot light won't stay lit


Power can be on just turn the room thermostat down .

Apr 06, 2017 | Burnham IN5S-SP-EZ-NG IN5, 86,000 BTU...

1 Answer

Utica Boiler model # MGB100HD with a Honeywell Aquastat Relay model # Type L8148E will not operate the circular pump. THe damper works and I can hot wire the circulator pump but it won't turn on...


how did you hot wire it. did you jump the wires on the relay board or use another power source? Does the boiler burner start? Have 120 volts incoming to the relay board? You hear relay click when turning power on/off? If so bad relay, or loose wiring terminals on the board. This control has built in transformer that can burn out, that will stop the pump relay contacts from working.

Nov 07, 2011 | Honeywell Programmable Thermostat Heater

1 Answer

What should ther honeywell relay read in ohms on a r8222u 1006


did you check power to the gas valve? Pilot lit? Or electronic pilot on? Need more info on boiler.

Nov 05, 2011 | Honeywell Programmable Thermostat Heater

1 Answer

I do not have a room thermostat connected to my oil fired central heating boiler. I want to install a wireless room thermostat to avoid having to run cable. how do i go about this and which is the best...


All wireless wall thermostats are Millivolt controlled. rather than having an 18 or 24 volt (transformer) wired wall thermostat. Before purchasing any wireless wall thermostat, you need to determine what your oil fired boiler requires for activation. My experience tells me, that it's going to require either 18 or 24 volts. In which case a wireless thermostat won't work.

Hope this helped you and thanks for choosing FixYa.

Aug 11, 2011 | Heating & Cooling

1 Answer

Lights are all on but the machine not heating so power up lights will not turn odd


Hi There is a reset button inside on the front side of the boiler (you have to take the top of the machine off. There are 4 screws and remove the water tank). It is located between 2 black wires and is a red button. Push it in and test. There is also another problem that you might have. If the brew thermostat is bad it won't heat. To test for this, push the steam switch and wait 15 seconds. Then open the steam knob and push the middle button and see if the water is warm. If it is then you need a new brew thermostat. That is the thermostat that has the red dot on the top. It sets on top of the boiler next to the steam thermostat. If you take the top off, make sure that the machine is unplugged. If none of these things work check the heating element with an ohms meter. The reading in the terminals should be from 12 to 16 ohms. If no reading the elements is bad and you have to replace the boiler.

Jul 10, 2011 | Rancilio Silvia Espresso Machine

2 Answers

Rancilio Silvia indicator light not turning off


Hi

There is a reset button inside on the front side of the boiler (you have to take the top of the machine off. There are 4 screws and remove the water tank). It is located between 2 black wires and is a red button. Push it in and test. There is also another problem that you might have. If the brew thermostat is bad it won’t heat. To test for this, push the steam switch and wait 15 seconds. Then open the steam knob and push the middle button and see if the water is warm. If it is then you need a new brew thermostat. That is the thermostat that has the red dot on the top. It sets on top of the boiler next to the steam thermostat. If you take the top off, make sure that the machine is unplugged.
If none of these things work check the heating element with an ohms meter. The reading in the terminals should be from 12 to 16 ohms. If no reading the elements is bad and you have to replace the boiler.

Dec 25, 2009 | Rancilio Silvia Espresso Machine

4 Answers

Boiler will not shut off


boiler does not shut off when thermostat reaches temp, i already replaced aquastat but condition still exists

Nov 14, 2007 | Heating & Cooling

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