Question about Heating & Cooling
Ive cleaned it several times and it just wont stay lit when it fires up it cut s out and wont light up again until about 2 hours later but the same happens again.... any help with this would be helpful
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Posted on Jan 02, 2017
the first thing you need to do is go back to useing K1 kerosene, diesel fuel not only burns dirty but also has a tendency to gel up in cold weather which could be makeing it hard for the heater to draw the proper amount of fuel. To reset the pressure you will need a gage, it should run at about 6-7 psi. you can order a pressure gage from mr. heater online, they are by far the cheapest I have found as they are the actual manufacturer or call 1-800-251-0001
Posted on Feb 05, 2009
It sounds to me that your air flow is restricted somewhere. The first thing to check is your air filter. If that gets real dirty your restricted air flow will cause the hi-limit(hi temperature limit switch) in your heat exchanger compartment to over heat and open up your gas valve electrical circuit,thus, shutting off the gas to your burners. After the hi-limit switch cools down the furnace will go back to heating again then it will overheat again(you get the picture?) If it keeps cycling on and off like that the house will never get warm if it is cold outside. If your air filter is reasonably clean(you should be able to see light thru it easily) then the secondary heat exchanger could also be dirty, this is located above the indoor fan housing, you would need to pull the indoor blower assembly out of the furnace and look up above. The secondary heat exchanger looks similar to a radiator will fins. You can use a medium stiff plastic brush to brush the dirt,hair, whatever off of it. Another problem spot would be the cooling evaporator coil (if you have central airconditioning) located most likely above the furnace in the plenum(if your furnace is in a basement). This usually is difficult to access if an access cover wasn't installed when the airconditioning was installed. I would recommend an experience service tech to clean it for you. Also make sure all you supply air registers and return air registers are open . These are the things I would check first. Good luck!!
Posted on Nov 20, 2009
SOURCE: my vulcan ducted heating unit
Two things have to occur here:
1) The ignitor has to light off the gas. A bad ignitor, or dusty burners can prevent ignition.
2) The thermocouple has to be in the flow of burning gas to prevent a safety shut-down, and has to be working.
And the obvious: you need pressure in the gas line, and the gas valve needs to be open.
Hope this helps you locate the problem!
Posted on Aug 14, 2010
Flame sensor needs to be cleaned. turn off the furnace power switch or breaker. pull the flame sensor located in the burner runner section of the furnace. It will be easy to locate because it has 1 wire running to it. pull the screw being very careful not to harm anything else. get the sensor out. inspect it for cleanliness. clean the sensor with light grade sand paper gently. re-install the sensor plug the wire back on. restart your furnace and this should fix the problem.
Posted on Nov 19, 2010
Testimonial: "thanks cookhvacr, took 15 minutes and it seems to be back to normal operation."
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