Question about Intertherm P3RA-048K Air Conditioner

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The pilot light

When you light the pilot the flame is very small and will not increase in size or will it stay on after you release tge lever.

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Sounds like the hole in the line to feed gas to the pilot has something in it

Posted on Nov 14, 2008

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I have a evcon 7200erc S-1 The pilot will not stay lit.ignitor cycles while i hold lever to pilot,pilot lites i hold for 60 seconds release lever and pilot goes out.I replaced thermal couple to correct...


Check the following: Pilot orifice or line partially clogged --- remove and clean.
use a fine wire or drill bit to do this.
Gas control valve going bad --- replace gas valve. Gas valves cannot be repaired.

Sep 12, 2011 | Air Conditioners

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I light the pilot light, hold it till it stays on by itself, it starts to heat up, and then when its about to switch over to commence full heating the pilot light goes out.


Evidently when the flame comes on, it is pulling the flame away from the pilot thermocouple. You may need to take a small brush and clean your pilot assembly, then take the thermocouple off and replace it. You can also use compressed air to clean the pilot if that is available.

Jun 24, 2011 | Air Conditioners

3 Answers

I have a Whirlpool gas hot water heater. The pilot light will not stay lit: it ignites but as soon as I release the RESET button, the pilot goes out.


change your thermocouple. You can get one at any hardware store. the thermocouple is the small rod looking device next to the flame of the pilot light. It has a copper looking line about as round as a pencil lead that connects to the gas valve. Disconnect the line from the thermocouple from the gas valve and you may be able to just pull it out from the pilot assembly. take the old one in to the hardware store so you'll get the right length.

Apr 09, 2011 | Air Conditioners

1 Answer

Valor Fireplace model 837 AN. It has a handles on upper left side that when depressed lights the burners. The burners are supposed to stay lit once the lever is released but it shuts all flame off...


Definitely, sounds like a problem with the Thermocouple or Thermopile (some of the Valor models use one or the other or both). But, before you jump the gun, be sure you hold the control valve knob in for at least one minuet before releasing it, when lighting the pilot. That way, the Thermocouple or Thermopile will have ample time to heat up.

Hope this helped you.

Mar 19, 2011 | Air Conditioners

1 Answer

Pilot light wont stay lit, even when on high


Pilot lights are supposed to stay on when the flames are burning. If they didn't the flames would go out, because the pilot flame against the Thermocouple keeps the pilot burning. It's a safety feature.

Mar 08, 2011 | Air Conditioners

1 Answer

I replaced the gasvalve and thermalpile in my 35,BTU wall heater I light the pilot and turn the heat on it goes out I ran a new state wire in case of a short but it still does it, did I get a bad...


Did you get the right gas valve for a thermapile and not a 24 volt gas valve? Also I would recheck my wiring.... Here is a article that may be of HELP....... Hope this Helps.....
Thermocouple: A thermocouple is a device made of two different metals which creates a small electrical charge when heated at one end.
Thermopile: A thermopile is a probe that contains multiple thermocouples, therefore it can produce a larger electrical current. Millivolts: 1/1000 of a volt - thermocouples and thermopiles typically produce from 25 to 600 millivolts of power.
Piezio - a spark producing device often used to ignite gas pilots and burners.
Gas Valves Types:
A. Single Thermocouple Only - Used on some gas logs
B. Valves with Thermocouples and Thermopiles - Used on most hearth appliances and gas logs with switches or remote controls or thermostats.
C. ODS Systems - Used on Mostly Vent-Free. Available in manual control or thermostat/remote/switch (combination) valves.
valvepict.jpg
Typical Gas Valve A. Thermocouple-Only
Found in: Most gas log sets with standard safety pilot knob control. Also found in certain gas space heaters and construction-site portable heaters.
Explanation: This type of gas valve used a single thermocouple. A thermocouple is a device made of two different metals which creates a small electrical charge when heated at one end by the gas pilot. This small charge causes an electromagnet inside the gas valve to open and allow gas to flow to the main burners. Since the thermocouple must be heated before the burner will start, gas appliances often have a startup mode, during which a knob must be depressed and held for 30 seconds or so after lighting the pilot. At the end of the 30 seconds, the pilot should be generating enough electricity for the valve to operate correctly. At this time, the startup knob can be released and the valve turned to an "on" position for appliance operation.
pilotclose.gif Troubleshooting:
Most problems with this type of valve are due to thermocouple problems. Check the following:
1. Connection from the thermocouple to the valve. Clean the threads of the connecting nut with a pencil eraser and re-tighten.
2. Pilot hood and flame direction. The pilot should engulf the top 5/8" of the thermocouple with a decent flame. If the flame hits the thermocouple too low, this can cause the appliance to go out or not generate enough millivolts for valve operation. The pilot hood and orifice should also be clean from soot which could slow or block the pilot flame.
3. Pilot pressure. Many of these valves have an adjustment screw to adjust the pilot flame. A pilot that is too short may allow the pilot to stay lit after ignition, but may not create enough charge to allow the burners to ignite.
4. Overheating: If the unit works for a few hours and then shuts down, it's possible the thermocouple has become overheated. Repositioning of the gas valve and/or pilot may be needed to avoid this problem.
Problems with LP units can also be due to a tank that is nearly empty or a bad regulator at the tank.
B. Thermocouple & Thermopile valve
gas1.gif Found in: Most modern VENTED gas stoves, fireplaces and fireplace inserts as well as vented gas log sets with thermostat or remote control.
This valve is similar to the thermocouple only valve, however has a pilot which heats up BOTH a thermocouple and a thermopile. The thermocouple still acts to prove that the pilot flame is on and allows this flame to continue after startup. The thermopile is used to power a second circuit which is used to open the main valve. This second circuit is powerful enough (300-600 millivolts) to allow the use of a thermostat, wall switch or control switch to operate the main valve. Control of the valve is obtained simply by hooking a pair of wires to two terminals located on the valve.
Startup is similar to the thermocouple-only valve. A piezo spark ignition is used to ignite the pilot after the gas knob is turned to the "pilot" position and depressed. Once the pilot is lit, the knob is held in for 30 seconds to "prove" the heat and then released and turned from the "pilot" to the "on" position. The main burner will then respond to the switch, thermostat or remote control.
Troubleshooting
Since there is both a thermocouple and thermopile in this valve type, it is important to isolate where the potential problem may be. If the pilot can be lit and stays on after the knob is released, then the problem is probably with the thermopile side of the valve. Here are the most common problems and solutions.
1. Pilot does not light or stay lit after knob is released - Make certain that the Piezo igniter works by checking for a spark between the igniter tip and the pilot hood. If there is no spark, the piezo may be bad or the piezo wire might be shorting to the appliance chassis. It is also possible that the igniter tip needs to be bent slightly toward the pilot hood so the spark jumps to it.
Check carefully that gas to appliance is on and that the valve is in he correct (pilot) position and fully depressed when lighting.
If pilot ignites but does not stay lit after knob is released, then the problem is with the thermocouple not generating enough voltage to the valve. It may be that the pilot adjustment needs to be turned up, or the thermocouple replaced. Another possibility is that the thermocouple may not be being "bathed" fully by the pilot flame. Check your owners manual for a diagram and description of the proper pilot flame and hood adjustment. It is also possible that there is soot or other blockage in the pilot tube, orifice or hood which is reducing the size of the pilot (and also the voltage of the thermocouple).
2. Pilot stays lit, but appliance will not turn on - There are two common causes for this. It is possible that the thermopile is not producing enough millivolts to power the control circuit. The millivolts can be checked with a simple voltmeter (consult the owners manual for proper setting) and adjusted with the pilot adjustment screw. Improper millivolts will also cause the appliance to shut down in the middle of operation.
Another common problem is loose or poor connections or circuits to your appliance switch, thermostat or remote transceiver. This can be isolated by simply using a small piece of wire to jump the "TP" and "TH" terminals located on these valves. If the appliance turns on when these terminals are jumped, then you can be sure that your problem is not in the appliance itself, but further down the switch circuit. Make certain you have used the suggested gauge of wire and that the length for your control runs does not exceed the specs given in your manual.
3. Other possible problems - include wind or back drafts affecting the pilot flame and checking of "spillage" circuits which may be wired into the valve in most B-Vent units.
If all the above checks out, and your valve is still acting weird (i.e., works some of the time), then you may have a defective gas valve in the appliance. Problems with LP units can also be due to a tank that is nearly empty or a bad regulator at the tank.
C. ODS System
Found in: Unvented (Ventless, Vent free) gas logs, fireplaces and stoves. These systems are available in manual or remote control.
ods.gif ODS stands for "Oxygen Depletion Sensor" , a term which accurately describes this valve type. The valve itself is similar in many ways to the two valve types above...with one exception. The pilot tube is a precision mechanism that creates a very stable flame as long as the room air contains the proper amount of oxygen. If the oxygen level in the room air drops even slightly, the pilot becomes unstable and lifts off of the thermocouple (see diagram) causing the gas valve and appliance to cease operation. This type of valve is very reliable, and there have been very few failures of this system - even with tens of millions in use worldwide.

Mar 02, 2011 | Air Conditioners

1 Answer

My therma gas heater will not stay on . It ignits correctly, it also steps up to 3 pannels burning correctly, but you have to hold the grey gas button down for it to work. The pilot-type flame will not...


You need to replace the thermocouple. This is a small metal rod that is positioned in such a manner that when the pilot light is burning, the flame is contacting the thermocouple. When heated by the flame, the thermocouple produces a very small amount of electricity that it sends to the gas valve. The valve then interperets the electricity as confirmation that the pilot is burning and it is safe to conitinue delivering gas. Thermocouples wear out and stop producing power. The gas valve thinks that the pilot has gone out and thus turns the gas off for safety.

Thank You,
Chillmaster

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Jul 05, 2008 | DeLonghi Air Conditioners

1 Answer

My pool heater pilot will not stay lite. I can hold down the pilot button and soon as I release it the pilot will go out. Please help!


Ok a couple things to check here would be a thermocouple or a flame switch depending on the the type of ignition source. If it has a standing (continious) pilot you need to look for a small copper line returning from the pilot source to the gas valve most likley this will be it. The other will be a small copper line returning to a switch with 2 wires on the backside this will be a flame switch. the thermocouple could most likley be purchased from your local hardware store but a flame switch will have to come from the heater manufacturer.

Jul 01, 2008 | Air Conditioners

1 Answer

My hot water heater will not stay lit. What could be the problem and would I be able to fix it?


The thermal couple that senses the heat from the pilot and holds the gas valve in the ready condition must be bad. It is not difficult to replace. Note: When you first lite the pilot flame you must hold the button down for at least 30 seconds before releasing it. Also check the size of the pilot flame that contacts the thermocouple.

Jun 28, 2008 | Air Conditioners

2 Answers

Pilot light will not stay lit


is it full of dust my hot water used to do the same till i blew the dust and fluff out

Nov 18, 2007 | Air Conditioners

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