Keep all air openings in front top and bottom of heater free of objects and debris to ensure adequate air for proper combustion.
Propane wall mount heater shuts of after 30 sec.
Step 2 close the empty propane tank if it is small enough to remove by turning the handle counterclockwise as far as it will go.
Turn the control from the on position all the way over to the off position.
Gas wall heaters whether vented or unvented can supply enough heat to warm a small or medium sized room and they can operate with propane or natural gas.
If heater keeps shutting off have it serviced.
On wall mount heaters it is usually located on the front of the heater near the floor.
If heater keeps shutting off see troubleshooting pages 22 through 25.
The third reason of why your propane heater keeps shutting off can be a blocked up gas valve orifice.
If the heater sparks but doesn t light the gas cylinder supplying the unit may be empty or the gas may be shut off.
Also there may be a pilot adjustment valve on your gas valve.
There could a fault in the gas valve s main burner solenoid causing it to draw excessive power and starving the pilot flame solenoid.
This might happen due to corrosion to the orifice and you don t have any choice apart from replacing it with a new one.
If you re sure the unit has gas clean the aperture of the gas valve with a needle.
If so replace the entire valve.
How to troubleshoot gas wall heaters.