Question about Heating & Cooling

1 Answer

I have a Rheem HVAC. The blower is running, but the spark thing will not light the burner. My unit is about 4 years old.

Posted by on

  • Ken Bledsoe May 11, 2010

    does it spark at all?


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert whose answer got voted for 20 times.


    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 144 Answers

Welcome to Fixya. It sounds as if one of the limit switches has opened. Did you have a dirty filter? Limit switches are mounted on the fire box(box around the burners) and around the middle of the furnace in front. They may or may not have a reset button on them. First turn off the power. Then if you see the limits with buttons go ahead and reset them. If none of the limits has a button on it tap the metal next to it (don't hit the limit or it will break) this may jar it enough to reset it. You can also jump them out by removing the wires from the terminals and joining them together with some elec. tape. I DO NOT recommend running your furnace with a limit bypassed. This is for diagnosing only. Please let me know if this helps or not.

Posted on Jan 25, 2009

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Why is my heat pump tripping circuit breaker continuously?

Probably a weak breaker. I would change it and see if it happens again. If the problem continues call a hvac guy out

Jan 10, 2016 | Rheem 2.5 Ton 13 Seer Heat Pump -...

1 Answer

Inducer motor starts, electrode glows, get 24 volts at gas soloenoid but only only the first burner lights and the other 3 do not. Sometimes all 4 will light but usually just the first one. Then the...

The crossover part of the burners are dirty and need to be cleaned, usually spider webs or dirt get stuck there and wont allow the gas to get to the other burners and the furnace will shut off for safety. Also the orifice that allows gas to the burners can be clogged with dirt or spider webs. If you are comfortable with working on it then you can do it yourself, however if you are not then call a hvac technician. Just remeber to turn off gas and power before working on it.

Jan 19, 2011 | Weather King 10AJA3601AH Air Conditioner

1 Answer

I have a technical question regarding implementation of my Carrier furnace within my residence. Specifically, the furnance has been installed for 17 years and I have not had any problems with it. I have...

Thats a safety.

The unit senses a failure to ignite, so it goes into safety mode keeping the blower running to prevent overheating and fires. And keeping the inducer motor running to prevent the same, as well as raw gas build up inside the unit.

The newer systems are "smarter" and can detect more specific problems and failures. The older ones simply know that the thing didn't light, so they bring on the fans for safety.

Jan 01, 2010 | Carrier XHB123D X/Y Series Heat/Cool Air...

1 Answer

Looking for the year on this HVAC unit Rheem Serial # T M1302 00279

you can probly get that info on the rheem web site. Rheem . com or a link on my site.

Jul 12, 2009 | Ruud UAKA037 Air Conditioner

1 Answer

Rheem A/C unit makes a clicking sound when

Shut down the unit and turn the power off. Take the cover off of the blower housing and feel around within the squirrel cage. It sounds like something may have been drawn up into the blower. Also it is possible that the blower wheel might have thrown a balance weight and caused the wheel to become unbalanced. It could also be the motor about to go out but since I can't hear it myself, I'm trying to cover all the bases.

Mar 22, 2009 | Heating & Cooling

1 Answer

Won't ignite!!!

If the igniter is not sparking on the pilot assy the pilot will not ignite all the time. You or anyone needs to see if the spark is hitting the pilot assy. be careful not to get shocked. My best recomendation would be call a professional to check unit...

Jan 31, 2009 | Heating & Cooling

1 Answer

I have a Rheem (Criterion) unit and i'am having promblems with the main burner staying on. When i turn the unit on everything operates like it should up to the main burner staying on.Once the main flame...

Run a wire from the sensor down to the control board conector. Bypass the sensor wire around the connector in the blower deck.
The connection can be wire nutted on the sensor lead with the wire (16 or 18 guage stranded wire works) routed through the blower deck to the other side of the plastic wire connector on the blower deck.
The Sensor operates at high voltage but very low current. The connector will sometimes fail due to humidity or wear.
I have seen this on the Rheem or Ruud furnaces.
Hope this helps.

Jan 07, 2009 | Heating & Cooling

1 Answer

Rheem gas furnace pilot lights, but no burners or fan

If the burners do not fully ignite, the sensor will shut the furnace down. The lack of sufficient burner flame is a gas valve or gas pressure problem within the valve.
Replacing the gas valve with the original one may get you going. I surely suggest a professional service company for safety reasons and a thorough inspection. A 20 year old furnace is past it's normal life span.

Jan 06, 2009 | Heating & Cooling

Not finding what you are looking for?
Heating & Cooling Logo

Related Topics:

81 people viewed this question

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts


Level 3 Expert

2046 Answers

Dan Webster
Dan Webster

Level 3 Expert

8205 Answers

Cris Sparks
Cris Sparks

Level 2 Expert

338 Answers

Are you a Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides