My heats up until room is about 65-70 derees and then shuts of killing the flame and pilot, I can restart the heater but it will shut off after about 5-10 minutes.
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There are several possible causes for the described issue with your Empire BF-30-2 heater. Here are a few things to check:
Dirty or clogged burner: A dirty or clogged burner can cause the flame to diminish or go out. Make sure the burner is clean and free of any debris.
Low gas pressure: If the gas pressure is too low, it can cause the flame to diminish or go out. Check the gas pressure and make sure it's within the recommended range.
Faulty thermocouple: The thermocouple is a safety device that shuts off the gas supply if it detects that the pilot light is out. If the thermocouple is faulty, it could be shutting off the gas supply even though the pilot light is still lit. Check the thermocouple and replace it if necessary.
Faulty gas valve: The gas valve controls the flow of gas to the burner. If the gas valve is faulty, it may be shutting off the gas supply even though the pilot light is still lit. Check the gas valve and replace it if necessary.
Oxygen depletion sensor (ODS) tripped: The ODS is a safety feature that shuts off the heater if it detects a low oxygen level in the room. If the ODS has tripped, it could be shutting off the gas supply. Make sure the room is properly ventilated and reset the ODS if necessary.
If none of these solutions solve the problem, it's best to contact a qualified HVAC technician to diagnose and repair the issue.
If your heater is gas, must have at least one igniter electric or thermo couple, also a flame sensor could be present, the thermocouple send a milivolts signal to the gas valve this signal is initiated by the heat provided to that part, practically the igniter, thermocouple, and or thermo pilot "talk" to the gas valve, hey, we have flame in here you can open and let the gas flow, if there is a flame sensor this one would say, hey, there is a good flame at the burner stay open until the control thermostat tell you to shut down, I would change the pilot assembly if your unit is gas, because sometimes the pilot opening gets restricted and the flame is too small but strong enough to activate the gas valve, when the burners kick in shut down the pilot, and remain lit, in the next cycle pilot is out.
Is this an unvented heater? They have oxygen depletion sensors which shut off the heater to prevent burning up all the oxygen in the room. Heaters over 10,000 btu's should not be used in small rooms like bedrooms and bathrooms. Other causes could be a dirty pilot orifice. Turn off the unit (so pilot is off) and use a can of compressed air with attached straw, to blow out any dust from the pilot assembly. (Where the pilot flame comes out). This will allow the pilot to burn a strong blue color and keep the thermocouple heated properly. If it's a thermostatically controlled heater, make sure your thermostat bulb is cleaned off regularly. Dust will insulate the bulb from sensing the room temp and will not operate properly. Hope this helps.
what type of heater, the picture shows an electric floor model, they operate the way you have described, they get up to temp and then shut off for safety.
The pilot flame heats a thermocouple, so if the pilot goes out, the thermocouple cools and shuts off the gas. It can take anywhere from 20 seconds to 2 minutes for it to shut off. You should hear an audible click when it happens.
These systems use "flame rectification" to sense or prove a flame or
pilot flame exists thus it is safe to continue or transition to main
burners if a system with a pilot light. The AC spark is rectified
to a DC signal by the flame as the AC current passes through the flame,
the flame being a poor conductor only a small amount of DC signal is
sent, in the milliamps, so it is not too difficult to interrupt the
signal and disrupt the operation, it is doing this for safety. What
you can do is clean the surfaces where the pilot assembly meets the
casing and burnish this path clean back to the ignition modules ground
or burner ground terminal, there may be a flame sensor too, in this
case clean it with 0000 steel wool it is just a ground rod and does not
wear out but will build a film that can disrupt the weak DC signal.
well, these heaters are typically thermostat-bound, and I have found that they simply will not burn continuously, like a blue-flame heater. Try turning up the setting--this will make it come on/off more often, effectively heating at least one med-lg room, and partially for adjoining areas. Keep in mind that these only rated for 700-1500 SF--that is NOT the floor measurements, but square feet of airspace; eg., a 10' x 15' room has 10' x 15' x 8' (8 foot ceiling) =1200 sf. That said, My 15k btu wall unit had been the sole heating source for my entire home for 5 years, until last year, when I acquired another smaller unit. However, I typically only use a few rooms, and shut off unused areas (ya, was 'cool' in unused back room areas).
Need to check the vent tube for restrictions
and check to see if the blower motor air is not blowing out the pilot if it is the blower motor air blowing out the pilot nthe the heat exchanger may be cracked and could be dangers
sounds like your pilot saftey is working.the pilot flame heats a device called a thermacoupler which gives a signal to the gas valve letting it know its ok to open main valve. you may need a new thermacouple , might have a dirty pilot orfice or a problem with gas pressure or worse case a cracked heat exchanger in any case in less you have some type of training you should call a pro
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