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Water demand trips everything off

Diesel burner comes on when water demand is needed the whole lot trips off

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  • firehead May 11, 2010

    Karchers have a built in safety device, well lots of them. One or more could be causing the problem. Can you be more specific about what is happening?

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Our glass top range quit last night. The breaker threw and when reset, it snaps. All 4 burners, lights, etc not working.


any electrician knows that besides a short activating a breaker , items such as leaking insulation , moisture , or control unit problems will trip a breaker
so get in an electrician to test everything

Jul 05, 2017 | Dryers

1 Answer

Oil go to diesel then engine need oil diesel looks like mix with oil


Its sounds like you're priming pump has a leaking oil in to fuel line

May 02, 2015 | Cars & Trucks

1 Answer

After hot water demand, burner stays lit, blew up Pex supply line


Thermocouple has 2 ends. One end attaches to gas control valve, other end sits inside the pilot flame.
Flame heats thermocouple, causing tiny electrical current that is detected inside the gas control valve and keeps the gas valve open so water heater can turn on when thermostat calls for heating.
If pilot goes out, then no electric current reaches gas control, and all gas to burner and pilot is shut off.

If pex line burst, that implies very high pressure, caused by closed system with check valve that stops expansion, or possible clog in the water line, or high local water pressure, or clogged factory-installed heat traps.
Put pressure gauge like BTG100 on the drain valve to check pressure, should not exceed 80psi, install pressure reducing valve on cold water line, install expansion tank on cold water line. Remove heat traps and install ordinary pex-lined di-electric nipples from hardware store.

If the water was super hot, then overheating could have caused the pipe explosion.
However the gas control thermostat is ECO protected, and if ECO (energy cut off) trips because of high heat detected inside the tank or combustion chamber, the gas control will trip off and no longer work, gas control needs to be replaced. Some newer electronic gas controls can be reset, but that type heater uses a thermopile instead of thermocouple.
Thermopile is basically a group of thermocouples, that product more electric current that is used to power electronics inside the gas control valve, which issues an error code on the gas control, and some day will send a text message each time out-of-range event occurs.

Copy following links for troubleshoot resources, including troubleshoot by type of gas control valve:
http://weaterheatertimer.org/How-to-troubleshoot-gas-water-heater.html
http://waterheatertimer.org/Low-hot-water-pressure.html
http://waterheatertimer.org/pdf/How-to-replace-water-heater-gas-valve.pdf

Jul 12, 2012 | Bosch Aquastar 125B Gas Valve NG - Part...

1 Answer

Just bought a used karcher hds 500ci every now & again lots of smoke belches out burner is this a bad sign ? also cant seem to get the chemicals to pick up any tips


you burner assy needs to be cleaned , spark electrodes properly gapped and the fuel pump pressure set , the chemical pick up often gets clogged , and the chemical valve ( pump side becomes jammed ( a small ball bearing jams in the seat )
also clean out the diesel tank and clean or replace the fuel filter , if the smokes is white thats caused by water in the fuel , black smoke is too much fuel going to the burner assy or your ignition electrodes not igniting it

Nov 15, 2009 | Garden

1 Answer

Water heater working fine but very little hot water coming out


alot of time those small units do not have a fast recovery rate so if they are on for a min or more they might start to lose temperature. if it's on demand especially in cooler climates it might not have enough power to heat it up and keep up with your demand

Jul 29, 2009 | RTO Atwood DSI-RV Water Heater-6 Gallon

1 Answer

Burner will not fire


Dear muttandjeff,
I do not know if you machine is single or three phase. But whatever, one simple thing is to check that you have the right rotation. If the rotation is good, then fuel can be pumped. Now there must be a sensor that switches on with water flow. No water....no fire. If there is water passing, then the sensor is stuck and showing that there is no flow. The thermostat also opens a solinoid valve in most machines of this type. If solinoid valve is faulty....fuel will not come out. If this is a diesel boiler...check gap of electrodes and condotion of fuel nozzel. One last thing, is something I found in a machine of a friend of mine. I found everything correct....but then I found that the fuel was totaly mixed with water. So, that you have correct fuel, is also important.
fulltech.

Nov 16, 2008 | Northstar Pressure Washer Turbo Nozzle

1 Answer

Heated or ubheated water?


Most pressure washers spray unheated water which is fine for most applications. However if you need to remove very heavy grease then you may need to have to opt for a Hot Water Pressure Washer, utilizing either a propane or diesel burner. The downside is that you should expect to pay a lot more for these. Also, the heater is an additional part that requires maintenance and care. Do not run heated water through cold water systems, since this can damage the pump O-rings and gaskets.

Aug 27, 2008 | Briggs & Stratton Pressure Washer...

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