Question about Carrier Heating & Cooling

3 Answers

Limit circuit fault and high heat only is active

Posted by on

3 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 958 Answers

Please be more descriptive of the problem. we can help you further. what is the fault code?.
what limit did it reached?..hi or low?

tnx 4 using fixya,

drcool

Posted on Oct 25, 2008

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Scholar:

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

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 136 Answers

Ur model number plse and company details plse

Posted on Oct 25, 2008

  • 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
  • 13,433 Answers

Please clarify the problem, what is the brand and model of your air conditioner?

Posted on Oct 25, 2008

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,
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.
goodluck!

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

Do not get 24 volts from 120/24 volt transformer how test it?


Yes. There could be a couple of high limit safety devises in the circuit that can open the circuit to the gas valve. Pending your furnace type If your thermostat is calling for heat and the furnace tries to start your transformer is working. High limit safety controls are normally closed. If you have a open limit switch you will not have any continuity through it using an ohm meter or if you test it with a volt meter you will have 24 volts across the terminals of the safety devise. Other problems can be pressure switches, hot surface igniters and control boards. most newer furnaces have a control board that will flash a light code to help trouble shoot the system. Count the flash pattern and look on one of the furnace doors for the flash code directory.

Jan 01, 2015 | Heating & Cooling

1 Answer

How do I wire a induce fan motor


Induced fan motors on older units are wired through the high limit safety on the stack - in series. When the furnace calls for heat, the induced fan motor comes on and after a time the furnace will light.

Older units have a temp switch in the stack that rotates to bring on the burners and blower motor. . When there is a call for heat, the induced draft fan motor comes on and then the burners will light.

After the heat exchanger is warmed up the limit switch will bring the blower motor on. That's basically how it works - there are two circuits - one for the induced draft motor and the burners and the other for the blower and high limit.

New units have a plug on the board you just plug in.

A

Oct 04, 2014 | Heating & Cooling

1 Answer

Furnance turns off after about 4 minutes


Your furnace will have several limits. these are safety features that shut off furnace in case temps get to high. They are located in several locations by the burner runs, by the heat exchanger and by the flu vent there can be more than one in each area they are normally all looped together think of each one as a light switch the only difference is there is more than one in the loop and if any or switched off the system will read circuit fault. some limits can be reset. The limits are usually round disc's about one inch in diameter and have two wires attached. The ones that reset have a raised area in the middle that when popped will stick up slightly much like the button on a GFI outlet only smaller. If you have a meter with continuity beep mode test each limit be sure to turn power off to furnace most modern furnaces have a door disconnect switch which means when the lower panel is off the power is off. Also disconnect both wires to each limit switch prior to testing. When you find the bad limit switch take it to your local HVAC parts supplier and they will match up a proper replacement. Be aware there could be a cause for the limit tripping look for burnt wires flame rollout on startup lack of return air, restriction of vents, flu, weak fan motor, bad control board are just some of the possible problems.

Feb 29, 2012 | Heating & Cooling

1 Answer

I Have a beige goodman furnace (old ones) gmp... i replaced the circuit board..it worked fine..then once it reached its desire temprature from thermostat.. fire goes out then 2 min following is the...


Check the pleum high limit switch. Jump this control out and see if the furance runs until the call for heat is satified. Do mot leave the high limit jumperd.

Jan 26, 2011 | Goodman CACF048B2A Air Conditioner

1 Answer

Set thermostat to auto switch unit to heat. Unit lights runs for a minute then shuts off. Fault light blinks4 times, msg. Open high limit.


Check air filter for blockage, clean off flame rod found in the flame pattern of the last burner that ignites, check high limit switch with multimeter to see if good (found above the burner box). Make sure room air blower turns on within 90 seconds of first flame.

Nov 28, 2010 | Goodman CLQ36AR49 Air Conditioner

2 Answers

Fan running but no heat


It could be the circuit board, relay, heat strip coil or limit. If you have the fan switch at the t-stat in auto and the fan is running constantly it's probably a high temp limit that tripped. Was your filter clean or dirty? If you had a dirty filter and/or A/C coil it will restrict air flow and cause the furnace to overheat.

Jan 18, 2009 | Carrier 38CKC042 Air Conditioner

1 Answer

I have a Carrier Weathermaker SXi. Furnance will not turn on. I shut power off and waited ten minutes and tried to restart. Codes flashing are 12, 31, 32, 33, 41, 42. Can this be started in emergency mode?


Emergency heat is made for this kind of situation.So yes you can.
now for the codes.
code 12= Blower on after power up
code 31=High heat pressure switch or relay didn't close or reopened
code 32=Low heat pressure switch or relay didn't close or reopened
code 33=limit circuit fault(Flame rollout switch is open)
code 41=board fault
code 42=control lockout

Please rate this solution

Jan 17, 2009 | Heating & Cooling

2 Answers

Intertherm Furnace Will not stay on


possible dirty air filter low air flow causing high temp in fire box to trip limit switch or fan motor is bad hope this help let me know if you if this solved problem I may need more info

Jan 04, 2009 | Intertherm P3RA-048K Air Conditioner

4 Answers

High limit switch open on armstrong furnace


If you know where the high limit switch is you can always cut the two wires and wire them together causing the limit to close. But what you have to watch out for is why the high limit is not closing. That means in your return air either you have a dirty return air duct, dirty filter, or you don't have all your registors open to allow the heat to escape the heat exchanger. Just watch over riding the system. The high limit switch should either be on or behind the blower, in the middle of the system right under the heat exchanger. any other questions about hvac just ask.

David

Mar 23, 2008 | Heating & Cooling

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

Related Topics:

108 people viewed this question

Ask a Question

Usually answered in minutes!

Top Carrier Heating & Cooling Experts

Dan Webster
Dan Webster

Level 3 Expert

8205 Answers

Bill Long

Level 3 Expert

587 Answers

Cris Sparks
Cris Sparks

Level 2 Expert

338 Answers

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

Answer questions

Manuals & User Guides

Loading...