Hi All,
I am new to this forum but I have browsed it and sense quite a bit of experience relating to Modine heaters. Hopefully some of that can shed light on my heater.
Here is my situation:
I moved to a farm that was neglected for a few years with a Modine propane gas heater in a small nursery greenhouse. It was very dirty (mice in the bottom service panel, birds in the vent...). I want to use it this spring but the pilot is not lighting. I checked all the connections, tightened some loose ones, and confirmed with AC multimeter that voltage was traveling through the unit properly (24v).
When I turn the thermostat up, the unit kicks on, the fan turns on, the exhaust blower does not, but there is no spark or pilot flame. No smell of gas. There is propane in the tank and the line is okay, as confirmed by a working hot water heater on same line. I have not blown out the area near the pilot with compressed air (with the mice in there, debris could have clogged it?) but am doing so later today, and thinking that may not be the problem. The spark ignitor has electricity being fed to it, as confirmed buy multimeter test on exposed wire.
My current hunch, being an amateur with these, is that the valve might be shot. So far I have tested the valve's electricity by confirming the electrical wires coming from the circuit board running to the valves are good, and they are. Is there a test with the multimeter I may be missing to check if this valve is not working? Or, if there is proper electricity running to the valve, and this valve is calling for gas to light the pilot to satisfy the thermostat, and it is not feeding gas through it, does this blankly mean the valve is shot?
If anyone has any tips before I call the service technician, I would be very grateful. Thank you!
I am new to this forum but I have browsed it and sense quite a bit of experience relating to Modine heaters. Hopefully some of that can shed light on my heater.
Here is my situation:
I moved to a farm that was neglected for a few years with a Modine propane gas heater in a small nursery greenhouse. It was very dirty (mice in the bottom service panel, birds in the vent...). I want to use it this spring but the pilot is not lighting. I checked all the connections, tightened some loose ones, and confirmed with AC multimeter that voltage was traveling through the unit properly (24v).
When I turn the thermostat up, the unit kicks on, the fan turns on, the exhaust blower does not, but there is no spark or pilot flame. No smell of gas. There is propane in the tank and the line is okay, as confirmed by a working hot water heater on same line. I have not blown out the area near the pilot with compressed air (with the mice in there, debris could have clogged it?) but am doing so later today, and thinking that may not be the problem. The spark ignitor has electricity being fed to it, as confirmed buy multimeter test on exposed wire.
My current hunch, being an amateur with these, is that the valve might be shot. So far I have tested the valve's electricity by confirming the electrical wires coming from the circuit board running to the valves are good, and they are. Is there a test with the multimeter I may be missing to check if this valve is not working? Or, if there is proper electricity running to the valve, and this valve is calling for gas to light the pilot to satisfy the thermostat, and it is not feeding gas through it, does this blankly mean the valve is shot?
If anyone has any tips before I call the service technician, I would be very grateful. Thank you!