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Diagram for ITT b61 gas general control valve

I want to know how to connect the thermostat and thermocouple to that valve.

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  • rimma oz Nov 06, 2012

    I need an istruction of how to connect thermocouple and thermpstat to this unit?



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Posted on Jan 02, 2017

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SOURCE: i dont have a wiring schematic for the itt gas

The wiring diagram on the inside of the unit-has a connection diagram

Posted on Nov 01, 2009

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SOURCE: Coleman Propane Furnace Good pilot light but feed/ignite main burner

If you have a volt ohm meter take the two leads off the gas valve and ohm out the connection should have resistance for the coil. You said you have 12 volts from the thermostat white and red in the heating mode you should have minimum 26 volts. If you want to check the transformer should have 28 volts. Almost sounding like the transformer is getting weak. You can get parts for a 20 year old unit at any HVAC parts house. Try Washer Specialties here in Wichita Kansas they are on the web. Lowes even carries Transformers. Has to be rated 120 volt primary side secondary side 24 volts and 40 VAC.

Posted on Nov 24, 2008

  • 47 Answers

SOURCE: Have General Electric gas heater model

There should be a wiring diagram on the inside of the blower door.

Posted on Nov 21, 2009

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SOURCE: Charmglow gas patio heater won't start

You got to heat the thermocouple to get the gas valve to open ... I guess you know that ... You checked for spider web???

Posted on Jan 18, 2010

  • 2359 Answers

SOURCE: I installed a new thermocouple

Few things to check are
Is the length an exact match to the old thermocouple?

The START button let out small amount of natural gas to heat up the thermocouple

If the length / reach is not the same then the small gas tubing that heat the TC will not be effective.

Is there any frame shield when you disassemble the unit?

I will recheck the distance between the small starter gas tube and the original REACH of the TC,
Set the new TC to the same distance on the small START tube and adjust / match the original TC reach.

I will check on my reference material for frame shield
Please use a magnet or vacuum to locate a shield type metal.
This will be the key reason why you NEW TC keep going out.

=== Set the Williams Ceramic Gas Wall Mounted Panel Heater to the lowest setting and re-try.
Please keep me up to date on the fix via email.

Posted on Jan 22, 2011

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1 Answer

Changed thermocouple and thermostat on wall heater but heater will not turn on.

Thermocouple senses the pilot light, the gas valve is controlled by the thermostat and that is powered by a transformer. Check for voltage from the power supply transformer to the thermostat. Check the gas valve for continuity.

Jan 19, 2017 | Heating & Cooling

1 Answer

I have an old gas furnace. The thermostat is working but the burner won`t ignite. It`s 40 + years old but has been maintained it`s whole life. A new furnace is not possible at this time.

You should have a thermocouple in the unit for the pilot light. See if the pilot is lit, if not you may need to replace the thermocouple, if it is then check the voltage to the gas valve, if you have volts 24 volts there, your gas valve is bad. If you do not have 24 volts to the gas valve, then it's probably a limit switch.

Dec 18, 2016 | General Electric Heating & Cooling

1 Answer

The burners and pilot light work but the oven will not light. We need to figure out which part to replace. It is a unit converted for propane and has no electric parts.

Ovens generally have a couple of safety devices fitted meaning no gas gets to the oven unless there is sufficient gas pressure. There is also a valve controlled by a thermocouple. The valve prevents gas passing. There is a bypass operated by either a button or pressing in the oven control knob which allows gas to flow to the pilot light (and sometimes the burners). When the pilot light is lighted and has been burning for about half a minute with the flame correctly set to heat the thermocouple bulb the valve will switch on the gas supply and the knob or button can be released. The burners will initially be at maximum until the oven thermostat reduces the flow to maintain the temperature at a preset level.

If gas isn't reaching the oven and the pipework, oven control and thermostat is ok then the safety thermocouple is either defective or wrongly fitted.

Apr 24, 2016 | Kitchen Ranges

2 Answers

Pilot light wont stay lit on gas logs

If the pilot lite comes on, but will not stay on after it has had enough time to heat the thermocouple, you got a bad or the wrong thermocouple. It does take some time to heat that thermocouple.

Nov 26, 2013 | Woodland Direct CD Vent Free Gas Log Set...

1 Answer

I have an itt grinnell overhead garage heater ( on natural gas ) The pilot light is going but it won't kick in ... Is it the thermo coupler or the thermostats

i f you follow the thermocouple to were it connectecs to the safty valve. unscrew the thermocouple there and carefully clean the end with a pencil eracer (not sand paper) reassemble this has worked 4 me Mike

Nov 03, 2012 | Heating & Cooling

1 Answer

Water heater burner wont light

Problem is not thermocouple:
Thermocouple should be finger-tight plus 1/4 turn
Overtightening will short thermocouple against gas control valve, and solenoid switch will not open, and no gas will reach pilot once red button is released.
Tip of thermocouple has to sit in the pilot flame.
If pilot flame will stay on, then thermocouple is good.

Problem is not solenoid switch.
The gas control valve solenoid opens and closes gas supply to gas control valve.
On mechanical gas control valve, when you push down the red button to light pilot, then you are opening the solenoid and letting gas flow into gas control valve.
When heat is applied to thermocouple, a small electric current travels to gas control valve, and this causes solenoid to stay open.
If you extinguish pilot, then no current travels to gas control, and solenoid clicks off.
You can hear it click, and this is how you test it.
However, since you are getting gas to pilot light, then the solenoid is not the problem.

This leaves 4 possible problems:
1) Bad gas control valve thermostat.
2) Inadequate gas pressure. Call gas company.
3) Dirty combustion parts. Clean the burner with wire brush and water.
4) Clogged air intake on FV water heaters: Rheem FV gas water heaters have glass vial that will break if combustion is slowed by clogged air intake.

Oct 06, 2012 | Rheem 40 Gallon FVR NATGAS Water Heater 6...

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.
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.
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 | Heating & Cooling

1 Answer

Need to know where the termostat goes in the waterheter?

The thermostat probe on most residential water heaters is part of the gas valve. The thermostat is a non replaceable part of the gas vale and if your t-stat is bad you will need to replace the gas valve also.
This is generally not a very hard job just start off by shutting gas supply valve to off position.Disconnect main gas line to burner,line to pilot light, and thermocouple from gas valve. Remove pipe fitting from gas valve and use large pipe wrench to loosen gas valve.
Before you loosen gas valve you will need to shut water supply off and drain water from tank.MOST WATER HEATER GAS VALVES ARE PRETTY STANDARD ITEMS AVAILABLE AT MOST HARDWARE STORES. Just make sure you purchase valve for the type of fuel you have,such as l.p. or natural gas.Remove gas valve by turning counterclockwise. Use teflon tape or pipe joint compound on all threaded connections for reassembly. Hook up gas line,burner supply line,pilot and thermocouple lines. Refill tank and check and check for leaks. Light pilot and turn gas control to on. Set to desired heat setting . Also check all gas fitting for leaks. Good luck. Thanks

Dec 17, 2010 | Water Heaters

1 Answer

How to change bad thermocouple on reliance gas hot waterheater reliance 606

it is important to turn off

the gas supply to the water heater at the manual gas shut-off

valve. This valve is typically located beside the water heater.

Note the position of the shut-off valve in the open/on position

then proceed to turn it off.

2. On the lower front of the water heater locate the combination

gas control valve/thermostat. Depress and hold

the lock tab located under the gas control knob on the right.

Rotate the gas control knob on the combination gas control

valve/thermostat clockwise until "OFF" aligns with the mark on

the front of the gas valve. Once the gas supply has been shutoff,

remove outer door. 3. Using a 1/4" nut driver or socket loosen the two screws securing

the manifold door assembly until they are free. Do not

totally remove the screws and plastic retainer washers from

the manifold door. The screws and retainer washers will be

needed to reattach the manifold door. 4. In this step, the thermocouple, manifold tube, pilot tube and

igniter wire will be disconnected from the combination gas

control valve/thermostat. Using a 7/16" wrench

disconnect the thermocouple (left-hand thread) and pilot tube

(right-hand thread). Using a 3/4" wrench disconnect the manifold

tube (right-hand thread). Carefully pull the igniter wire from

the igniter button.

5. Grasp the manifold tube and push down slightly to free the

manifold tube, pilot tube, and thermocouple from the combination

gas control valve/thermostat. when installation is complete and gas is back on, You should be able to relight the pilot and the functionality of your gas hot water heater should be restored.

Nov 27, 2010 | Reliance Natural Gas Water Heater Control

5 Answers

Imperial cif 40 single tank bouble basket deep gas fryer

When the whole unit shuts down including the pilot light the thermocouple is not working properly. The thermocouple is what tells the gas safety valve that the pilot light is lighted. When the thermocouple fails and does not send the milli-volt (mv) signal to the gas safety valve due a failure the gas safety valve turns off the gas supply. (i.e total shut down)
If you have a handyman around you can have him disconnect the thermocouple from the gas valve control and clean the mating area in the gas valve and on the bitter end of the thermocouple. After cleaning then reconnect the thermocouple. This sometimes corrects the problem. FYI you can get a thermocouple at most any large appliance parts supply. (You will need to the know total length) It would be even better to have the old one in hand during the trip to the parts store.

Thanks for using FixYa,


Apr 24, 2010 | Imperial IFS40 Deep Fryer

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