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gotoman for ac, HVAC Technician
Category: HVAC
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Experience:  51 years of experience install design and repair of all makes and models of AC
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THE HEATER IGNITER GLOWS BUT DOES NOT IGNITE, NO GAS COMES

Customer Question

THE HEATER IGNITER GLOWS BUT DOES NOT IGNITE, NO GAS COMES IN. WHAT COULD THE PROBLEM BE?
Submitted: 1 year ago.
Category: HVAC
Expert:  V12Tech replied 1 year ago.

V12Tech :

Hello I would check for the 24 volt signal at the gas valve or the gas valve terminals on the module, usually will say MV or PV etc

V12Tech :

If you have 24 volts to the gas valve and no amp draw, the gas valve is bad

V12Tech :

If you have an amp draw but nothing opens its physically stuck.

V12Tech :

If not gas is entering the gas valve you will need to check the meter from the utility, try testing for gas pressure entering the unit.

V12Tech :

loosen the flex line and smell for gas flowing.

V12Tech :

Its either a gas valve or ignition module assuming the high limit etc are closed, any flame rollouts etc tripped?

V12Tech :

It is pretty cut and dry if the limit and any safeties are closed/proven and the 24 volt thermostat signals geting to the board as evidenced by the ignitor, then the gas valves bad or the module this requires a voltmeter to detrmine which is the culprit.

Customer :

DO YOU KNOW WHERE I WOULD FIND THE FUSIBLE LINK AND LIMIT SWITCH FOR THIS UNIT?

Customer :

MODEL TUJ060A936A1

Customer :

I'M NOT SURE WHERE TO CHECK FOR VOLTAGE. IT HAS A PLUG WITH 5 WIRES

Customer :

if you can tell me where to check for voltage i will do that.

Customer :

if there is no voltage does that mean the module is bad?

V12Tech :

Hello I need the model # of the TRANE unit to be sure about any fusible link, I don't see many of these on anything but electric heat, they typically will be by the burners as are high limits, the limit is on the wall above the burners and has 2 wires going to it usually if its the rectangular type Tranes usually have, the outputs are on the module but I need specifics to tell you which and where.

V12Tech :

Go from the gas valve backwards to the module, you will see the terminals and the 2 or 3 wires going to the gas valve.

V12Tech :

Ok I just now saw the model, hold on please, I apologize I was reading the response just after I sent the request for the model!

V12Tech :
  • 167 F. Roll Out Safety Switch (Trane, American Standard)

167 F. Roll Out Safety Switch (Trane, American Standard)
Price: $62.97
AM HVAC#: FUS442373
Quantity:
ORDER BY PHONE: 1-866-432-8551

New Upgraded Replacement Roll Out Safety Switch (Trane, American Standard)


Replaces Limit Switch Part Numbers:
FUS00698 FUS0698 CNT01068 CNT1068 FUS0810 FUS00810 44-20037-03 442003703 8611-5523 8611-5518 44-20212-01 8611-5509 8611-5506 44-20212-02 44-20037-01 81433712 86115523 86115518 442021201 86115509 86115506 442021202 442003701 TF1670 4D4333A5 44-20037-03 G5AM0600167C FUS0620 FUS00620 G5AM0602167C LNK0620 LNK00620 FUS0810 CAR442003703 CARFUS00810
Used In Trane, American Standard Equipment Model Numbers: TUD060R936A1 TUD060R936A2 TUD060R936A3 TUDO60R936A1 TUDO60R936A2 TUDO60R936A3 TUD080C948H3 TUDO80C948H3 TUD100C936A1 TUD100C936A2 TUD100C936A3 YCC030F1M0BA BLU120K948B1 BLU12OK948B1 TDD040C924BO TDD040C924B0 TUP080A9248C TUP080A924B0 TUP080A924B0 TUP080A924BO TDE060A936C1 TDD080R936B0 TDD080R936BO TUD080B942A0 TUDO80B942AO TUJ080A936A0 TUJ080A936A1 AUC080C942A1 TDC120C960B1 TVC1008948A0 TUC100B948A0 TUD080R9BCH6 TUD080R948H3 TUD080C936B0 TUDO80C936B0 YCC042F1MOAA YCC042F1MBAA AUD080C936H3 TUD120A960A0 TUS120B960A0 TUJO60A936A1 TUJ060A936A1 TDD040C924BO TDD040C924B0 YCC036F1H0BB YCCO36F1HOBB TUE080A948BO TUE080A948B0 TUEO80A948BO TUD100R960A1
Used In Rheem, Ruud Equipment Model Numbers: RGAC-080C WGAC-080C UGAC-080C RGAC080C WGAC080C UGAC080C
rhqa-1205bns

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V12Tech :

I did not know this unit had a roll out with this design! This is interesting!

V12Tech :

I am researching further,

V12Tech :

New Upgraded Replacement Roll Out Safety Switch (Trane, American Standard)

V12Tech :

So may not resemble your current rollouts

V12Tech : KIT09660 Trane, Cumberland Radiant Sense to Flame Sense conversion

Click for larger image

KIT09660 Trane, Cumberland Radiant Sense to Flame Sense conversion (KIT09660)

Replaces these obsolete sensor and control board numbers. SEN0388 SEN00388 906-22 90622 960-22 50A55-486 L944L E1 L944LE1 KIT05216 50A52-100 CNT01581 KIT5216 CARCNT1581 SEN0499 SEN00499 SEN499 KIT03793 KIT3793 KIT5216 KIT05216 KIT9660 KIT09660 CNT1670 CNT01670 CNT1655 CNT01655 CNT01643 CNT1643 270161928700 50A52101 KIT09660 KIT9660 50A52-101 CNT01655 50A52-102 D340783P01 CNT1655 CNT1670 CNT01670 CNT01845 CNT1845 D340783P01 D330786P01 X13650526010 CARKIT09660 CARKIT9660.
Used in the Trane Models below (also some package units) TUE080A948BO TUE080A948B0 TUEO80A948BO FUAB100A40C0 TDE060A936C1 TDE100A945C1 TDE080A945C1 TUE080A936H1 TDE100A945A TDE060A936B0 FUAA060A30C0 TUE100A948BO TUE100A948B0 TUJ060A36A0 TUE060A936A0 TUJO60A936A1 TUJ060A936A1 TUE080A948BO TUE080A948B0 TUEO80A948BO

$309.95

V12Tech :

I am seeing several quirky charecteristics regarding this unit! The "improved" roll out and replacement for the "obsolete" radiant sensing ,

V12Tech :

Home > Control Boards > KIT09660 -- IGNITION CONTROL / FLAME SENSOR KIT

KIT09660 -- IGNITION CONTROL / FLAME SENSOR KIT
Full Size Image
List Price: $420.00
Your Price: $269.57
You Save: $150.43
Item Number: KIT09660
Manufacturer: Trane
Manufacturer Part No: KIT09660
Quantity: * Whole number only
V12Tech : OEM Factory Direct Upgraded Replacement Blower Assembly (Trane)
Code: MOT0342A
Price: $647.77
Quantity in Basket: None
Quantity:
OEM Factory Direct Upgraded Replacement Blower Assembly (Trane)
Trane Blower Assembly Includes: Blower Housing, Blower Wheel & Motor.
Motor Specifications: H.P.: 1/3 Volts: 115 Phase: 1 RPM: 1075 Speeds: 1 Type: PSC Bearings: Sleeve Rotation: CCW Frame: 48
V12Tech :

WOW, I have never seen so many improved/revised components for 1 model ever!

V12Tech :

I am familiar with Tranes too, this is not typical in my experiences with tranes, this unit is particularly troublesome it would appear.

V12Tech :

Here is what the limit looks like.

V12Tech :

Was there anything else you required?

Expert:  gotoman for ac replied 1 year ago.
On Trane if you have open lmit or roll out fan will run all the time. Check make sure gas is on. There is only two things it can be .. Bad gas valve or bad board. 99% of time itmis board. Russ Trane Service Manager. Get back with me for questions and we will go from there. Russ

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