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What causes the empire dsv35-4sg to pop loudly when thermostat reaches temp and shuts off. Like a mini explosion in combustion chamber. shakes wall when happens.

Brand new, just installed unit. Had it checked once but still happening.

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Sounds like there is a gas leak in there and the gas is igniting when the thermostat clicks in.

Posted on Dec 06, 2016

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1 Answer

Pinging when on the thottle.and a wineing noise from lower end


Beings you DIDN'T give a YEAR (so I don't know if it's a carb or injection), I can only give generalizations.

Pinging in internal combustion engines occurs when air/fuel mixture in the cylinder has been ignited by the spark plug and the smooth burning is interrupted by the unburned mixture in the combustion chamber exploding before the flame front can reach it. The engineered combusting process ceases, because of the explosion, before the optimum moment for the four-stroke cycle. The resulting shockwave reverberates in the combustion chamber, creating a characteristic metallic "pinging" sound, and pressures increase catastrophically.

Some of the possible causes:

The hotter your engine is, the more likely your engine is to ping. The farther your timing is advanced, the more likely your engine is to ping. The higher your compression ratio is, the more likely your engine is to ping. The lower the octane of gas you use, the more likely your engine is to ping.

As far as the whining noise, does it sound like a chain noise?
Again, the causes/fix depend on what YEAR your bike is.

Jan 24, 2014 | Harley Davidson FXDWG Dyna Wide Glide...

1 Answer

What causes back firing


Backfiring in internal combustion engines occur outside of the combustion chamber, and are typically the result of an improper air to fuel ratio. An overly lean air-fuel mixture (i.e. an overabundance of air) can lead to a failure to ignite in the combustion chamber, also called a "misfire". The unburnt fuel then enters the exhaust system, where hot components can cause the fuel to ignite unpredictably. Alternatively, rich air-fuel mixtures (i.e. an overabundance of fuel) can result in incomplete combustion, again causing unburnt fuel to enter the exhaust system.
Backfires may also occur before the combustion chamber. One possible cause of this is timing. If the timing is too advanced, the spark plug fires before the intake valves close, causing the combustion to propagate into the intake manifold, further igniting the air-fuel mixture there; the resulting explosion then travels out of the carburetor and air filter. On many small marine engines, a screen is placed over the intake of the carburetor as a flame arrestor, to prevent these flames from escaping the intake and potentially igniting fuel or fuel vapors in the enclosed sump or bilge of the boat, causing a fire or explosion. Alternatively, the engine timing may be retarded, in which case the combustion is not completed by the time the exhaust valves open, allowing the combustion to propagate into the exhaust system.
Additionally, improperly adjusted carburetors that create a lean condition during acceleration can cause the air fuel mixture to burn so slowly, that combustion is still taking place during the exhaust stroke, and even when the intake valve opens. The flame front can then travel up the intake and cause a backfire. In this situation it is conceivable that there is a backfire occurring in the intake manifold and exhaust manifold simultaneously.
In both cases (combustion occurring before and after the combustion chamber), the result is a sharp pop, which is colloquially referred to as a "backfire". However, for troubleshooting, engine mechanics more strictly define an ignition of fuel within the engine exhaust system as an "afterfire", while a "backfire" is this same process taking place in the induction system.

Jul 28, 2013 | Exhaust for Chevrolet Camaro Convertible

1 Answer

Gas not getting to the combustion chamber of water heater


1) Gas control valve might be bad.
http://waterheatertimer.org/pdf/How-to-replace-water-heater-gas-valve.pdf

2) Copy following link to identify gas control valve:http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent
3) Link above has general troubleshoot information concerning each gas control.
4) If FV system tripped due to clogged air intake, then can shut down gas control.
http://waterheatertimer.org/How-to-repair-Rheem-FVIR.html

Less air means slowed venting, but same amount of gas is still burning, which overheats combustion chamber tripping FV system.
Each brand is different: Some air intakes are located on bottom of heater, while other brands, the air intake is located under combustion chamber.


5) Gas control will also fail if thermostat fails and allows tank temperature to reach beyond ECO set point. The ECO is 1-time-use thermal fuse. Replace gas control.

Dec 06, 2012 | Water Heaters

1 Answer

How to repair code 13 for tankless water heater


10-15-2012

Code 13 is probably Rheem, Richmond, Ruud, Paloma etc tankless.
Copy following link for troubleshoot resources:
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

Error 13 is oxygen depletion sensor
Imperfect combustion.
For example if tankless does not have required maintenance, then burner can get dirty and clogged.
This will cause unburned natural gas to rise inside hot flue pipe causing risk of explosion and fire, or in case of propane gas that is heavier than air, the gas will build up inside combustion chamber and cause explosion and fire.

Oct 15, 2012 | Water Heaters

1 Answer

The difference between thermal fuse and thermostat


Thermal fuse is a heat-sensitive safety feature that shuts down system when overheating is detected.
In electrical wiring, the thermal fuse reacts to high temperature caused by too many amps on the electric circuit. When temperature exceeds the fuse amp rating, then the fuse trips and cuts power to electric circuit.
Example of thermal fuse is a household circuit breaker.
Gas water heaters have a different type of thermal fuse located in the combustion chamber or on the combustion chamber door, and also inside a copper probe inside water tank. Water heater thermal fuses will trip when water temperature exceeds fuse rating, or when heat inside the combustion chamber exceeds temperature rating of fuse. This action will cut off gas supply to water heater.
So a thermal fuse is a safety feature.

Thermostat is not a safety feature.
Thermostat is a measuring tool.
Thermostats measure temperature.
Example of thermostat is outdoor thermometer, or cooking thermometer, or Heat-AC control located on wall inside house.
Thermostats can give a simple temperature reading, or they can cause a separate control to turn on-off depending on application.
For example thermostat on Heat-AC will read room temperature, and when temperature exceeds setting, this triggers a switch that turns Heat-AC on-off.

Many appliances have both thermal safety fuse and thermostat.
Take for example a gas water heater. A copper tube extends into the water tank. Inside the copper tube are 2 things: A thermostat probe to measure water temperature, and a thermal fuse called an ECO for energy cut off. The ECO is a thermal fuse, and is a safety feature.
http://waterheatertimer.org/images/Gas-valve-ECO2-358.jpg
The thermostat reads temperature of water, and turns water heater on-off to keep water hot. A person can adjust water temperature by adjusting the thermostat dial on front of water heater.
However if the thermostat fails, or some other problem occurs, and water inside the tank gets hotter than 180 degrees, then the ECO or thermal fuse will trip. When the thermal fuse trips, this turns off gas to the water heater so water cannot get any hotter. The safety device prevents water heater explosion. The water heater must be repaired since this particular thermal fuse cannot be re-used afterwards, and must be replaced.

Oct 11, 2012 | Dryers

1 Answer

Difference between thermostat and thermal fuse


Hello Mary
Thermal fuse is a heat-sensitive safety feature that shuts down system when overheating is detected.
In electrical wiring, the thermal fuse reacts to high temperature caused by too many amps on the electric circuit. When temperature exceeds the fuse amp rating, then the fuse trips and cuts power to electric circuit.
Example of thermal fuse is a household circuit breaker.
Gas water heaters have a different type of thermal fuse located in the combustion chamber or on the combustion chamber door, and also inside a copper probe inside water tank. Water heater thermal fuses will trip when water temperature exceeds fuse rating, or when heat inside the combustion chamber exceeds temperature rating of fuse. This action will cut off gas supply to water heater.
So a thermal fuse is a safety feature.

Thermostat is not a safety feature.
Thermostat is a measuring tool.
Thermostats measure temperature.
Example of thermostat is outdoor thermometer, or cooking thermometer, or Heat-AC control located on wall inside house.
Thermostats can give a simple temperature reading, or they can cause a separate control to turn on-off depending on application.
For example thermostat on Heat-AC will read room temperature, and when temperature exceeds setting, this triggers a switch that turns Heat-AC on-off.

Many appliances have both thermal safety fuse and thermostat.
Take for example a gas water heater. A copper tube extends into the water tank. Inside the copper tube are 2 things: A thermostat probe to measure water temperature, and a thermal fuse called an ECO for energy cut off. The ECO is a thermal fuse, and is a safety feature.
http://waterheatertimer.org/images/Gas-valve-ECO2-358.jpg
The thermostat reads temperature of water, and turns water heater on-off to keep water hot. A person can adjust water temperature by adjusting the thermostat dial on front of water heater.
However if the thermostat fails, or some other problem occurs, and water inside the tank gets hotter than 180 degrees, then the ECO or thermal fuse will trip. When the thermal fuse trips, this turns off gas to the water heater so water cannot get any hotter. The safety device prevents water heater explosion. The water heater must be repaired since this particular thermal fuse cannot be re-used afterwards, and must be replaced.

Oct 11, 2012 | Dryers

1 Answer

Explain induction comoression related to the spark ignition


Air & fuel enter the combustion chamber
The spark plug is ignited causing an explosion when the piston rises causing pressure
pushing the piston back down
& letting the spent air & fuel exhaust out the combustion chamber

Jan 12, 2011 | 1997 Chevrolet Lumina

1 Answer

Can egr cause the car not to start


It could cause it not to start if it's stuck open.

If the EGR valve is stuck open, it will essentially cause a vacuum leak, leading to inefficient combustion, rough idling, hesitation, and sometimes stalling in extreme cases. This is because the car cannot combust on carbon dioxide from the tailpipe — it needs atmospheric oxygen. If the combustion chamber is flooded with exhaust from an open EGR valve, it will not function properly. To check and see if the EGR valve is stuck open, have someone idle a parked vehicle with the brake on while you examine the plunger shaft to see if it is stuck open
.
If the EGR valve is stuck closed, emissions of nitrogen oxides will rise, and the car may start to knock. Spark knock happens when the fuel mixture in the combustion chamber ignites before it has been reached by the explosion in the cylinder, resulting in a disruption of the engine timing. In this instance, the engine should be warmed up and revved to see if the EGR valve will move.

Jan 15, 2010 | 2003 Chevrolet Impala

1 Answer

The pilot blow out when the thermostat calls for heat. When the metering valve provides additional gas there is a muffled gas explosion in the heat exchanger chamber and it blows out the flame.


Hi,

Sounds like the unit is in urgent need of a service!
Pilot outage is usually caused by a faulty component called a thermocouple, however i would definitely recommend you get a qualified gas engineer in to inspect the unit.

I hope this helps



Steve :o)

Jul 11, 2009 | Microsoft Age of Empires 2: Age of Kings...

1 Answer

B vent configuration of direct vent propane heaters


Yes, the design of the combustion chamber is limited at how much fresh air and combustion air can enter it. If you lengthen the venting, you will be causing more restriction and there will not be enough natural air movement to make it work. It will start, run for a minute or two and poof out. Not to mention you will be circumventing it's UL rating and if you sell your home with it installed, you are liable for any fatality or damage. Do you want to risk that? Don't even think of doing it! There are "Box" heaters out there sized from about 5,000 Btu's on up to 100,000 Btu's. Check the web.

Sep 17, 2008 | Empire DV-215 Direct Vent Natural Gas...

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