This pilot light may not always stay lit due to a variety of issues that may affect the gas supply or ignitor.
Pilot light not staying lit on wall heater.
Thankfully a dirty pilot tube is the easiest issue to fix.
If the pilot light is not aimed correctly simply bend the thermocouple to line it up with the pilot tube.
As a result the pilot doesn t get enough fuel to stay lit.
When the pilot on your wall furnace does not stay lit your furnace won t heat.
If it is not you can bend the thermocouple back into alignment with the pilot tube but only after allowing everything to cool.
My gas wall heater will not stay on on a setting of 4 and below pilot light stays lit answered by a verified hvac technician.
When your pilot light will not stay lit for more than a few moments turn the pilot light on and be sure it is aimed at the thermocouple.
The initial flame of the pilot heats the thermocouple which will signal the valve to stay open and keep the pilot lit and the propane heater functioning.
Dirt and debris can collect in the pilot tube causing the flow of gas to be blocked.
We can go from there.
If you suspect this is the case or you have noticed that your pilot light simply will not stay on for more than a few seconds turn the pilot light on and see if it is actually aimed at the thermocouple.
If the thermocouple is too far from the flame this can cause the pilot to go out and shut down the propane heater.
Be sure everything has cooled down before realigning the thermocouple and pilot light.
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Remove the hex nut that connects the gas line to the pilot assembly.
Then let the knob up and rotate it directly to on.
Do this light the pilot while the knob is in the pilot position hold it down for 1 minute.
This is also a likely cause if the pilot won t ignite at all.
You may also be operating the on off pilot knob incorrectly.
This device is central to the operation and can tell if the pilot light is on or off by an electrical current that is powered by the pilot s heat.
As a result your pilot light assembly bottom will get exposed.
Most water heaters operate with a thermocouple.
Locate the pilot assemble holding screw and remove it.
Do not rotate it to off first.
A number of reasons can cause the wall furnace to not light including a damaged thermocouple a clogged pilot.
You can fix this easily by moving the thermocouple closer to the flame.
Gently pull the gas line out of the pilot assembly housing.
