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Hammer after heater lights, it starts hammering. That is , the coils heater up and sporidicly over heats and creates a knocking sound. what causes this?

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If you have a plumbing bypass close half way if not check manual bypass by manifold if spring is bad or it is stuck open water is boiling inside

Posted on Mar 19, 2016

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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: Very loud knocking noise that can be felt if touching the unit.

If the heater has a heat sink with a brass non-return valve then this could have a fault creating a hammering noise that resonates through the heater.

Posted on May 06, 2009

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What else can causes water hammer if arrestors don't work?


If your question is about what causes water hammer:
It is usually caused by fast acting solenoid valves i.e. Washing machine valves, dishwasher valves, etc. this kind of water hammer sounds like a large bang when the valves closes suddenly. The other kind of water hammer is when one of the seats are loose in an angle stop or a faucet. This kind of water hammer sounds like a chattering

In my experience as a 30 year retired plumber I found the best and the cheapest way to fix this problem is:

Install a dishwasher 3 way angle stop near the offending fixture.
Take a length of 3/8" copper tubing and wrap about 3-5 times around a coffee can or similar sized pipe and make a coil capped or soldered on one end and put the other end in the side branch of the valve leaving about an inch between coils. The force of the water stopping will be absorbed in the coil itself, no need to drain down the water in an air valve.
You can also use this method on a larger scale near the water heater, 1/2" and more wraps in the coil for a whole house suppressor.

I have used this method successfully several times in my career

Aug 22, 2014 | Sharkbite 3/4 in. Residential Water Hammer...

Tip

If your dryer works but no heat


whirlpool,kenmore,roper,kitchenaid,inglis,if your dryer works but no heat most of the time it is a blown fuse,or bad heating coil,cause of a blown fuse can be power surge,clogged wall vent,clogged dryer lint vent box,unplug,remove back cover,look to your right and you will see the heater box,look on the left side near the top and you will see a small fuse,this is your heater box fuse,if not the fuse,the heating coil is near the bottom,1 screw on each side,remove and look for broken wire,if you have a meter,you can check the fuse and heater coil-mike

on Feb 11, 2010 | Dryers

1 Answer

Hammering sound ptac


heat pump? possible causes: low freon. clogged / dirty coils. blower motor running?

Jan 20, 2014 | Heating & Cooling

1 Answer

Inglis by whirlpool spins but does not dry...no heat


ALWAYS UNPLUG YOUR DRYER BEFORE ATTEMPTING TO DO ANY WORK ON IT.
Check to make sure you are getting full 220 Volt power to the dryer, if you are then:
Sounds like your problem may be with the heating coil. Remove the back of the machine and try to
locate the air duct going from the blower to the drum. Normally inside the air duct you will find
the heating coil and the thermostats/thermistor. Once you have located the heating coil, remove
the two wires from it and check the coil with an ohm meter across the two terminals of the coil.
You should read continuity across the terminals, if not you will need to replace the coil as it
is faulty. If the heating coil is ok, then: You can check the thermostat/thermistor by removing
the two wires and taping them together with electrical tape. If the coil heats up then replace
the thermostat/thermistor. DO NOT LEAVE THE WIRES TAPED TOGETHER AFTER THE TEST. This could cause
a fire, as you have removed the safety of overheat from the machine. I will include these two web
sites for parts and further help:
http://www.partselect.com/ http://www.appliancepartspros.com/index.aspx
Both also have chat assistance 24/7.
Good Luck, Hope this helps
Please do not forget to rate me, Thank you

May 18, 2010 | Whirlpool Inglis IP8200 Dryer

1 Answer

Knocking sound caused by the flame sputtering.


I have heard of noises coming from the inducer fan as it start to build up with condensation but the noise coming from the flame is new to me. Gas pressure or a cracked heat exchanger could cause the flames to float around out of the manifold but that is about all I can think of

Jan 07, 2010 | Goodman GMS90703BXA Heater

2 Answers

My water heater keeps making this knocking sound.


This sound is called "water hammer" yes it can hurt some pipes and valves in the house. It is caused by water pressure from the water co. being higher than normal, they have to raise pressure in areas to move water for new construction and what-not. The cure some times but not always is to install an "anti-hammer device on top of your hot water heater. a "water hammer arrester" is what they are called, cost about $11.oo and up. .

Dec 30, 2009 | Reliance 43614 Heater

1 Answer

Inglis dryer working but no heat and not drying. How to fix it?


Sounds like your problem may be with the heating coil.
If you plan to try to repair the problem yourself, then the first thing you want to do is unplug the dryer from the electric.
Remove the back of the machine and try to locate the air tube going from the blower to the drum. Normally inside the air tube you will find the heating coil and the thermostats/thermistor.
Once you have located the heating coil, remove the two wires from it and check the coil with an ohm meter across the two terminals of the coil.
You should read continuity across the terminals, if not you will need to replace the coil as it is faulty.
If the heating coil is ok, then:
You can check the thermostat/thermistor by removing the two wires and taping them together with electrical tape.
If the coil heats up then replace the thermostat/thermistor.
DO NOT LEAVE THE WIRES TAPED TOGETHER AFTER THE TEST. This could cause a fire, as you have removed the saftey of overheat from the machine.
Good Luck,
Hope this helps

Oct 14, 2009 | Whirlpool Inglis IP8200 Dryer

1 Answer

Inglis gas dryer heat wont stay on


Hello, This problem is going to be your safety valve coils...basically they get old and over time of heating then cooling develop a short when they heat up...It may appear the gas lights to start but then goes out until the safety valve coils cool back down. Here is a picture of the coils 57d5263.jpgThis The coils are mounted to the gas saefty valve, This should solve your problem. Hope this helps, Please feel free to comment again if you have any further questions or concerns. Good Luck! Mike

Aug 31, 2009 | Dryers

2 Answers

Very loud knocking noise that can be felt if touching the unit.


If the heater has a heat sink with a brass non-return valve then this could have a fault creating a hammering noise that resonates through the heater.

Mar 30, 2009 | Teledyne Laars Laars Lite 2 Pool Heater...

2 Answers

Loud Knocking


If the noise is not coming from the fan as Buffalo suggests, it is most likely the expansion and contraction of the heat exchanger. The old school way to lessen the noise of expansion is to bank the combustion chamber with a hammer. I don't recommend it today because the metal is so thin (thus all the noise) and you may damage it. You will get used to it and the noise may soften the more it is used. You will never get it to stop.

Dec 04, 2007 | Williams 3003622 Ceramic Wall Mounted...

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