Heater is blowing cold air.
Wall mounted gas heater troubleshooting.
You may have a bad thermocouple.
If you re wondering why your heater is blowing out cool air the first thing you should do is check your thermostat and make sure it s set to the correct temperature.
Either remove blockage or replace burner.
All slotted burner flame holes should be open with yellow flame present.
It should be parallel to the pipe.
If there is or your heater runs on natural gas check the handle on the gas line.
Off grid wall mounted empire direct vent heater.
On 2017 10 10 by mod wall mounted gas heater fan runs even though the thermostat is off.
A manual fan on switch could be set at the thermostat or at the limit switch in the air handler furnace itself or wires could be shorted together in the thermostat wiring or there could be a bad fan controller itself.
Some burner flame holes may become blocked by debris or rust with no flame present.
Periodically inspect all burner flame holes with the fireplace running.
If you re sure there is gas the pilot aperture may be blocked.
But when you turn the pilot to on the unit burner and pilot go out after about two minutes.
Pilot light will stay lit.