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Trouble shooting manuel for Neothern NTH150NCN3B

Neotherm boiler manuel

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1 Answer

Utika boiler does not stay on


What is the fuel you heat the boiler with?-- Oil or Gas?

Does the flame ignite initially, and then sputter out- or positively SHUT off, like a valve is closing?

Is there a High temperature (or Pressure) limit being reached, to shut it off?-- or other controls, like: Low Water, Hi Temperature plenum switch? --
can you do some trouble shooting, and get back with us, so we can help you better?

Mack B

Jan 23, 2011 | Heating & Cooling

1 Answer

We've had problems with a Laars Neotherm NTH105 since it was installed. The flame sensor seems to be not sensitive enough and unit shuts down. When the sensor is cleaned it runs for a while, but the same...


Yes there is an upgrade kit for the NeoTherm which allows the control to read a lower flame threshold signal even if the flame rod becomes a little dirty. Please contact our technical support department at Laars Heating Systems 1-800-900-9276 ext 4 for further assistance.

Jan 20, 2011 | Heating & Cooling

2 Answers

The boiler wont fire up and the blue light flashes once per second


Let's see what we can do to trouble-shoot this boiler--

First of all-- Are we talking about a Hot Water 'Boiler'-- In other words does this boiler heat water that circulates thru the house, to keep you warm?

Next-- What is your fuel?

Have you Shut the system down, to reset it?-- What happens when it comes back on again?-- Clicking sounds-- pumps trying to start-- solenoids trying to open, etc.-- Tell us what you observe-- so we can help you trouble shoot this problem.

Mack B

Jan 15, 2011 | Heating & Cooling

1 Answer

My new Laars JVS 225 boiler make a whining noise when heating up. It does it on all zones. This was a replacement for a Teledyne Larrs that had a leak but ran quiet. IPressure is 15 lbs and temp is 155...


My new Laars NeoTherm boiler (NTH150) was making a whining noise soon after install. The noise was audible through most of the home. Replacing the air/gas blower solved the problem. Correct sizing of pumps is also important to reduce (water-flow related) noise. Having done all that my Laars boiler still isn't particularly quiet in its start-up and (modulating) operation. It should NOT be located below or next to a bedroom.

Nov 19, 2010 | Heating & Cooling

1 Answer

Bottom Sprayer not spraying. does not look blocked


1)wash arm not spraying(or)rinse not spraying?

wash arm
1)remove the wash arm
2)switch on the machine all blockaged removed automatically.(remove the wash arm).

rinse arm
1)check any scaling in the boiler tank.
2)clean the boiler tank.
3)clean the rinse arm.

Jan 07, 2010 | Dishwashers

1 Answer

I have a vokera mynute 16e boiler and the light is not coming on and there is no heat coming through the radiators.have messed with all the settings with no joy, please advice of any possible trouble...


If this is a newer boiler, if it has a control board with a 24volt output
check to make sure boiler has line voltage to it. No fuse Blown/Breaker
Tripped.

If that is not the problem and power is available it could be the thermostat. If there is a pump involved,make sure it can operate

Dec 27, 2009 | Heating & Cooling

1 Answer

La Marzocco Expresso g3 how do you reouble


Check the thermostat on the top of the back boiler, if the red pin is up then, make sure that there is water in the boiler then push in pin and turn machine on. Now comes the exciting part we have to find out why the boiler overheated, is it because the elements are damaged or the pressure stat is not working properly.

Nov 05, 2009 | La Marzocco Linea Group 1 Espresso Machine

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