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Boiler starts banging and jumping after 20 seconds of burner igniting and then hot water comes from the pop-off valve, what is the problem?

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Water flow not enough water boiling inside check manual bypass spring could be bad if ok if plumbing bypass only open half way

Posted on Apr 27, 2016

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6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: My TELEDYNE LAARS Boiler hammers when the main

the hammer is due to boiling inside some one has been messing with the safety controls or water to slow or no flow at all

Posted on Oct 15, 2009

heatman101
  • 43501 Answers

SOURCE: My Hayward pool heater Model

Hi,
A few things to check...
Is the pump working correctly, no air locks and moving the correct amount of water...is not correct that first, it could be causing the heater problem...

Is the heater over firing and/or not shutting down on proper temperature..???

The banging may be the heater producing steam instead of just heating the water...

At any rate is you are not comfortable with troubleshooting this you should get it look after right of way!!

This may be a dangerous situation...

heatman101

Posted on May 31, 2011

adamh294
  • 310 Answers

SOURCE: When the burners ignite, within

This sounds like a low water flow situation. The heater is telling you that the high limit sensor is curring heater operation. The noises are the heat exchangers boiling the water either due to a blockage in the exchanger , a bad mixing vlve, or most likely poor water flow. This is tough to troubleshoot through a posting like this, but 1st thing is 1st. Check your water flow and make sure it is minimum 50 Gallons per minute.

Posted on Jul 18, 2011

  • 5 Answers

SOURCE: My heater is making a loud banging noise after the

https://sites.google.com/site/haywardpoolheater/
Three years and counting with no problems.

Posted on Jul 27, 2012

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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?

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Ideal c24


Hi Jurgie,
I'm Harvey, the Master Plumber,
Happy to render my assistance.

This is your problem!
When you are switching on the boiler it ignites for 8 to 10 seconds, then it cuts off and the lock out lamp comes on. Pressing the reset button or turning on the hot water tap has the same effect.

I need to get the make and model of your specific boiler to give you an accurate answer!
Waiting for your response.
Harvey, your Master Plumber.





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