Question about Heating & Cooling

5 Answers

Carrier weathermaker sx 58 furnace

Hi,
I have just bought a house with carrier weathermaker sx furnace. When I turn it on burners start, blower comes on but after a couple of minutes burners shut down and blower keeps running. The whole cycle repeats once every half an hour. I have thermostat set to the maximum but furnace
keeps doing the same. The temperature in the house stays almost 50 degrees. I called service and was told to have control board replaced. After spending almost 500 dollars, now I am being told to replace the furnace.
Please help.
AK

Posted by on

  • genesisvid Feb 14, 2008

    Yes, have 2 58SX furnaces from 1987. One has the problem where the pilot comes on as expected, 25 seconds later the main burners come on for about 1 second, then they and the pilot both go out and stay out for about 1 minute, then the process repeats. Every fourth or fifth one of these cycles, the main burners will stay on for anywhere from 5-10 minutes; rarely for 50 minutes or more until the thermostat is satisfied.



    The 2nd of the 2 furnaces; about half the time the pilot will not stay lit. Draft inducer motor runs continously, there is a clicking noise from the gas valve, and the pilot lights for an instant then goes out. Eventually, after 10-30 minutes of this, the pilot and main burners light for an extended run. Any ideas?

×

Ad

5 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I have serviced these furnaces for 20 years and I can tell you most of these models did not have diagnostic lite on them. (although some did, especially if the control board has been replaced) The problem is most likely a bad 3 wire pilot. This will cause exactly what you describe. 2 things to consider though. 1, If you were to replace the pilot don't get a cheaper knockoff. In my experience these do not last long at all. Get the right one from a carrier dealer. It will cost more but be much more reliable. 2 What is the condition of the secondary heat exchanger? Most if not all of the sx series had issues with the secondary heat exchangers rotting out and leaking. If the furnace is out of warranty you would be much better replacing the furnace as the cost of replacing the secondary heat exchanger will probably be almost the same as a new furnace. ( those babies are EXPENSIVE!)

Posted on May 01, 2010

  • markus412
    markus412 Feb 23, 2013

    Hi Dillon, I realize this post is almost 3 years old, but I'm having a similar problem. If I kick the heat from 62-68, the induction blower kicks in, then the main blower comes on. After a few minutes, the main blower kicks out and just the induction blower runs until the unit eventually fires again. This goes on until the thermostat is eventually satisfied. In your diagnosis, you mention a 3 wire pilot. I think my unit has a spark ignition. It this the same thing, or do you have any other suggestions of things to check?

×

Ad
  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

I've had a Carrier 58SXA100 since the 1980's. In the first 30 years of use , the problems with the furnace could all be traced to plugged drain lines. The furnace drains water into a cylindrical plastic tranp and out of it through a tube. If any part of the drain system gets clogged then water can back up into the lines of the vacuum switch and prevent the furnace from igniting the main burners or cause it to cycle on-and-off. It's fairly easy to take off the trap and the drain lines and clear them out. Also clear the vacuum lines and the orifices where they are attached.

In the past year, the pilot assembly went bad. The furnace would ignite the pilot and shortly after the main burners ignited there would be a click from the igniter relay and the burners would shut off - apparently due to some fault with the bi-metal switch in the pilot assembly. This cycle would repeat.

You can find useful Youtube videos about diagnosing the problems of Carrier furnaces "short cycling". However, keep in mind that the 58SX is an old furnace. It doesn't display error codes and I don't think it has a "flame sensor" like modern furnaces - instead, the bi-metal switch in the pilot assembly is supposed to sense if a normal flame is going.

Posted on Nov 23, 2017

Ad
  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Just had the same problem My SX does not have diagnostic codes or readout, 1st generation. The Pilot proof switch in the main burner was intermittant burner would light then go out after a bit then the pilot would warm the bi-mettalic strip and the main burner would come back on. Check the web for price mine was a 3 wire electronic ignition pilot. Another problem I had was the HFR relay burned up the contacts, Granger has a supply of these so I replaced them.

Posted on Dec 20, 2007

  • cavemanjames Dec 20, 2007

    Almost forgot the mention a clogged filter will cause the furnace to overtemp and shutdown (starved for air) then restart by itself. Serious problems such as my pilot proof switch or vacuum failure will result in a lockout in which case the power has to be cycled to restart.



    The fans speed is adjustable on this furnace, and the service man should have checked the rise and run!

×

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 1,420 Answers

I think Hotuna may be on to something. This unit has an internal diagnostic circuit that blinks a code when something goes wrong. To view it, remove the main access cover. You will noticee a small clear plastic window. Document all blinks you see. On the reverse side of the cover you will find a sticker with the diagnostic codes spelled out. Let us know what you get and we can assist you further.

Posted on Dec 19, 2007

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

  • Expert
  • 288 Answers

This sounds like a thermal disc or the heat anticipator on the thermostat is not set right. What was the $500 spent on?

Posted on Dec 19, 2007

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Heat exchanger replacement for carrier weathermaker 8000


After 18 years of service, it is not cost effective to just replace the heat exchanger. Go the complete replacement route. There may be a utility company incentive to do it.

Jun 06, 2016 | Carrier Weathermaker 8000 Gas Furnace 125k...

1 Answer

I have a Carrier Weathermaker SX HVAC unit with a Honeywell thermostat. Even if the thermostat is turned "off", my fan keeps blowing!


Hello, usually this is a sign of a bad blower relay on the intergrated control board. The only option is to replace the control board.

May 09, 2012 | Heating & Cooling

2 Answers

I have a new home 1 yr and when the furnace kicks in, I am assuming the fan it makes a noise but as soon as the heat starts the noise is gone, could this be the furnace blower


Check by turning the unit off and turn the fan to on. Do you hear the noise now? The noise your hearing could be coming from your combustion fan assembly instead. Newer furnaces have a in-shot burner and are nosier than the old style of heater.

Jan 04, 2010 | Carrier XHB123D X/Y Series Heat/Cool Air...

1 Answer

Knock Noise When Carrier Furance Starts Up


have the ac company check the actual blower wheel itself it may be slowly coming apart

Apr 20, 2009 | Carrier Heating & Cooling

1 Answer

When burners come on makes a swiching noise and then goes out and


The carrier sx series went through a number of control systems over the years. can you find the full model, and series numbers? They are located behind the door on the left side. (i.e. 58 sxc080-100 series100)

Dec 30, 2008 | Heating & Cooling

1 Answer

Carrier Weathermaker SX model 58SX060-CC Blower runs all the time


Remove all power from the furnace, it is likely the brain in the furnace is need of being reset, from the battery replacement, why did you change the battery, was there an indicator telling you to change it?

Many times just removing all the power to the furnace will do the trick with a reset, if not let me know and we will go from there, but it sounds like the main brain is confused or bad, more likely confused, so try the power removed first.

Than let me know wbwill@sbcglobal.net

Oct 22, 2008 | Carrier XHB123D X/Y Series Heat/Cool Air...

1 Answer

Furnace pilot is on, pilot ignitor continues to click, no main flame


sounds like the sensing bar on the spark ignition is dirty.....a wire brush works nicely.

Oct 17, 2008 | Carrier XHB123D X/Y Series Heat/Cool Air...

1 Answer

Weathermaker SX Carrier 58SX060-cc-1


Your blower motor may have failed. Check the blower motor for the air circulation and you may find it is hot but not running. Have the motor replaced if this is the case.

Jun 11, 2008 | Carrier XHB123D X/Y Series Heat/Cool Air...

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

Related Topics:

5,841 people viewed this question

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts

Paul Carew

Level 3 Expert

3335 Answers

Mack Baxter

Level 3 Expert

383 Answers

Marvin
Marvin

Level 3 Expert

82322 Answers

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

Answer questions

Manuals & User Guides

Loading...