Having problems with your Air Conditioners ?

Limit Swith on Coleman Central Heating and Air

\015 Green Lights blinking 4 times, which is the code for the limit switch. When i turn on the power the blower fan automatically turns on. When i turn on the thermostat it clicks. But, it does not start the globe in the pilot. It's done it before in the past and they said it tripped the limit switch. Can you help?\015

Answers :

Sounds like the limit switch is not bad ...... its just doing its job. You need to determine why he furnace is overheating. Are your filters clean? Is your blower wheel clean? Is your blower motor running fast enough? It might be set on to slow of a speed. The blower motor capacitor could be bad. Are all of your air vents in the house open? Are your return air registers blocked? Is your duct work properly sized? Put a thermometer in the return air duct. Note the temp. Now stick the thermometer in the plenum. Note this temp.. Subtract the high temp from the low temp. This number should fall within the temp. rise rating found on the data plate inside the the furnace on the same sticker as th model and serial numbers. If your temp. is above the suggested temp rise. you have an air flow problem. If it is within the suggested temp rise listed then your high limit control should be replaced.
\015\012Good luck

Repair Help & Product Troubleshooting for Air Conditioners
You need a second opinion or clarification ? ask it in the comment box OR you can Ask Your Own Question

Tips for a great answer:

  • Please provide as much detail as possible as this will allow our members to better understand and respond to your Comment
  • If you need clarification, ask it in the comment box
  • It's 100% free, no registration required

Suggested Questions/Answers :

It is recommended you read all this kind of situations

Limit Swith on Coleman Central Heating and Air


Sounds like the limit switch is not bad ...... its just doing its job. You need to determine why he furnace is overheating. Are your filters clean? Is your blower wheel clean? Is your blower motor running fast enough? It might be set on to slow ... Coleman Air Conditioners

Hi, i have a 9 year old rheem air and heat central home unit, my central heat runs with a 40 amp breaker. what happens is the breaker will trip after 3to 7 minuets all the time. so i just have heat for about 5 minuets.. a friend of mine we are electric contractors,, but not a/c repair. he was saying that My trouble could be my LIMIT SWITCH? let me hear from you..


A few things to ponder are as follows: Your condenser is plugged. If this is the case clean,clean,clean. I have seen this many a times. If you do not have a good air flow, you will not receive heat or cold air. Another thing to check would be the sta ... Air Conditioners

Where can I find a manual for my coleman cam II central air conditioner for a mobile home? I recently purchased the mobile home and would like to know what steps to ntake to make it work at its best. Also, I find it puzzling that the air filter is set on top of the unit inside the mobile home. It looks to my limited knowledge of central air, as if someone set the filter on top of the unit because they did'nt know the correct location placement. Can you provide any comments or advice? Thanks


Check the website for Coleman/Intertherm for a manual, you will need the model and serial numbers of the unit. The filters for these typically sit on top of the unit, some come with frames, some lay directly on the coil. If you can't find a manual on ... Coleman Air Conditioners

I have an old 1985-86 coleman central heat and air need manual


The filter is located before the blower if your Coleman is in a mobile home it will be in the door facing. If it is a standard ac/heat application and a regular residential furnace the blower in the cabinet on down flow (ducts in floor) will be above ... Coleman Air Conditioners

I have a coleman central air switched over from heat to cool and it blows the E- fuse on the pc board .never had this happen before


Check the stat wires for damage at unit the orange wire controls the reversing valve for heat cool on heat pump if wires look ok then un hook tue orange wire if doesnt blow fuse then the reversing valve coil is bad hope this helps ... Air Conditioners

I have a 1985 Bryant central air Furnace model 395BAW048095 with a White Rogers 36E gas valve. The flue is metal and there is a fan within the furnace to create a vacume at the base of the flue pipe conection that turns on when a call for heat comes from the thermostat at startup to ignition. The spark fires but no gas is released by the valve for the pilot to lite. Added information: The blower fan is set to continually run, I replaced the pressure switch (306621) and the limit switch (HH12ZB18


... Air Conditioners

Sequencer coleman central heat - Air Conditioners


... Air Conditioners

Our Coleman Central heat and air unit EB20B keeps blowing the inline 3 amp fuse. How should I troubleshoot the fan relay and blower motor to look for defects that would draw too many amps. The relay and blower motor are 11 years old. Thanks Ken Rohm


The transformer is blowing the fuse because somewhere down the line two thermostat wires are shorted together. You gotta trace that out till you find the shorted wiring first. It is unlikely a component would blow that fuse. Most of the time it is wi ... Air Conditioners

I just bought a 2002 mobile home and it is centraL HEAT AND AIR...My problem is I just turned on the central air, but there is heat still coming from the top part of the wall furnace which is in the small hallway. I have a switch in the laundry room which turns the heat off, but there is still some heat coming from the wall furnace...Do I take the cover off the wall furnace, but not sure what I would be looking for...I use oil for heat.. Thank you very much..


You need to make an adjustment inside the thermostat on the wall. To make the adjustment, lift off the cover from the thermostat and locate the anticipator. If your furnace is running short cycles, the anticipator is probably set on .2 or ... Air Conditioners

Have an amana central air duelfuel heat system.when aux heat[gas] heats the house and shuts off the fans still blow for 3 to 5 minutes with the last couple of minutes being cold air which cools the air it just heated. also heatpump will start heating when it comes on then after 3 or 4 minutes it starts blowing cold air like when the air conditioner is running.i have had problems from day of install 4 mounths ago with problems that keep coming up. please i need help fast i do not think comp


Change your heating delay to shut off sooner, you can find this in the installation manual. Also the Thermostat may have delay after heat as well. It is true there could be many variables, but it also sounds like the Heatpump is not charged properl ... Amana Air Conditioners

Have a Grand Aire Central Air and Heating unit a/heat pump...has been working fine. Switched it over to heat and nothing came on. Switched it back over to air, which was working and still nothing came on. Switched fan from ''auto'' to ''on'' and the fan will not come on. Used a screwdriver to push the contact in and everything runs (air and heat) as long as I am holding the contact in. Changed the t-stat, still the same problem. I really don't have the finances to call a pro in, any advice will


The fuse may be in line (red ) wire check control voltage if not present transformer (or fuse) needs replaced \015\012 the problem probably was caused by white wire (heat control voltage) has been wired to common not heat control ... Air Conditioners

How do i put freon in my central heat and air my central heat and air unit is a payne


This job is best done by service tech. You have to know what your doing to be able to charge a system. Plus you have to have EPA card to handle Refrigerant. You need to call service tech. Remember if you have to put gas in there isa leak. Make sure t ... Whirlwind FH-778 Air Conditioner

Our Carrier central air is unresponsive, nothing at all, no noises, air handler and condenser unit will not turn on, please help me before I lose more weight in my 150 degree attic. The serial # for the air handler is 0695803341 and the product # on AH is FB4ANF030000ACAA / we only have central air, system is not connected to any heat source Early sunday morning I turned the T stat to the off position, when i came home a few hours later I turned it back to the on position and nothing at all, no


I think you need to slow down and start fresh. \0121) You have 115v at Transformer-You are reading from Red to White\012 on windings?\012\0122) If that checked out OK are you reading 24v out of Transformer?\0123) If ... Air Conditioners

We have had a coleman central air system for 5 yrs. It stopped blowing cold air into the house about a week ago. You can still here it running but no air is coming out. my husband replaced the fuses and over night it did the same thing so when my husband went to check out the unit outside he said that the line had ice on it. Is there a filter within the central air unit that needs replaced?


Ice is an indication that the refrigerant is not flashing off correctly in the evaporator coil. In most cases you can simply turn the unit off (until it completely thaws inside and out) and replace the filter. Make sure that all the vents in the hous ... Coleman Air Conditioners

Installed a grant combi vortex 26e in January. Went back today to drain down and replace some radiator valves with leaking glands etc. When I filled and vented system, hot water fine, pump runs etc. Central heating will not fire although pump running. Pipework around boiler and by-pass very hot. No overheat. pump is free of air and spinning. I think in total I managed to get the burner to fire for on minute on central heating today. Confused. Could the by-pass be stealing all the heat? Could it


... Air Conditioners

A miswire need schematic or some direction for adding central air to a heat only intertherm electric air handler. See the problem is when a cool call is called there isnt a problem b ut when a call for heat the blower smokes. Its clearly a miswire but scmatic set up for heat only.


The blower is smoking because you have it hooked up to the same wires you've hooked the electric coil to.  That coil runs on 240 volts.  Those wires are typically red and black.  The motor runs on 120.  One of the wires should be ... Intertherm P3RA-048K Air Conditioner

Our Furnace doesnt seem to be working correct. We an: Air Pro BGM075128 and is Natural Gas. It will turn on when we turn up the thermostat.. but we never get any heat through the vents. There is a switch on the side that is "on" and one that is "fan". If we turn on the "fan" only cold air gets blown through. It looks like this is for cool air. So, if we leave the fan off and the "on" swith on, we get the furnace firing up, but no heat ever comes through the vents. I tested out the thermo


Sounds like the blower motor is not working, if the furnace is actually lighting up and the burns are ignited. You should set your thermostat to auto, as if it is on fan then the fan runs all the time until you take it off of fan. I am a little confu ... Air Conditioners

I have a goodman capf 181A5BA unit which is suppose to be heat and central air but the central is not working how do I turn on the central air part of the unit there is a yellow turn switch on the side of the unit attached to the pipe what is that for.


Did you switch the thermostat to the cooling mode, and turn the temp setting down?\015\012The yellow turn switch? must be a aftermarket addition.\015\012The power must be turned on the the furnace or air handler and also to the outdoor un ... Air Conditioners

Installed goodman air handler, system has hot water coil in duct for heat, how should i wier the 6006, or 4006 control to turn the fan on, on the air handler? if the limit switch turns the fan on for heat, isn't it going to send 24 volts back up the green wire to the t-stat? old air handler ( york) had a fan center relay.


\015\012\011\011\011\011\015\012\011\011\011\015\012\011\011\011\015\012\015\012\011\011\011\015\012\011\011\015\012\015\012\011\011\015\012\011\011\015\012You abso ... Goodman Air Conditioners

Central air conditoner unit doesnt blow cool air into home has some ice on the inlet heat and cooling lines going into the central air unit


Change the furnace filter. Make sure you use a cheap one when air conditioning, as the better ones restrict airflow when they filter out so much stuff and then plug up, not allowing enough air to pass over the cooling coil in the furnace's air plenu ... Carrier Air Conditioners

Is it ok to replace outside unit of central air and heat and not the inside air handler ? The upstairs A/C( over 10 yrs old) is not keeping up with South Texas heat. The temp upstairs climbs to 84-86 degrees by the afternoon and takes 4 or more hours after dark to cool back down. I have cleaned the entire unit outside- no help. I have replaced the downstairs unit 2 yrs. ago and it works fine. I don't want to replace the upstairs air handler if I don't have to---much more cost.


I'm assuming you have had a competent Air Conditioning contractor look your unit over.if you trust your A/C contractor, why don't you work with them towards an answer? I would get an air flow and sizing analysis, a full equipment service/performance ... Air Conditioners

We have central heat an air , the heat is up in the attic and the air is outside, our problem is that the air is blowing in the house but th unit outside doesn't come on , what could be the problem. Thanks


Check your breaker or fuses. for the outside unit. It may be getting the "Signal" to come on but there is no power. Start there and let me know. ... Air Conditioners

No heat coming from central air unit when heat is turned on.


Check t stat make sure its set up for you system some stats have to be set up for a heatpump or iits gas or electric heat ... Air Conditioners

Central heat does not blow hot air, just warm air weakly


Sounds like some of the elements are not working. You being in Florida they may not have put very many elements in. It was 61 degrees last week. I know because I'm a Dolphin Fan. You will need a current sensing meter to check the elements. ... Air Conditioners

My Coleman Evcon heating and air unit will not blow air


Bad blower motor. recommend a new blower motor and capacitor. ... Coleman Air Conditioners

A detailed question is important to get you a relevant answers

  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
all rights reserved to the respective owners || www.ad-trader.net || Terms of Use || Contact || Privacy Policy
Load time: 0.1371 seconds