| Problem |
Observed |
Possible Cause |
Solution |
| Unit will not light |
Igniter sparking no flame. |
Supply tank valve off. |
Turn valve on slowly. |
| |
|
Air in new tank. |
Allow several minutes to purge air with pilot valve depressed. |
| Pilot lights but goes out when safety control valve is released |
No flame or flame goes out. |
Regulator going bad. |
Replace. |
| |
|
Thermocouple not located correctly in burner or connection to safety valve loose. |
Align or finger tighten connection than 1/4 turn more. |
| |
|
Thermocouple defective. |
Replace. |
| |
|
Safety control valve bad. |
Replace. |
| |
|
Pilot too short or very yellow. |
Clean pilot orifice and tube. |
| Burner goes out |
All flame missing. |
Regulator going bad. |
Replace. |
| |
|
Dirt or bugs in venturi. |
Clean with low pressure air and pipe cleaner. |
| Disagreeable odor |
Eyes burning or watering. |
Painting or cleaning products in use give off hydrocarbon vapors that cause aldehydes when contacting heated surfaces. They give off very disagreeable odors. |
Should not be used in areas with flammable chemicals in use, paint, lacquer or parts cleaners. |
| Flame appears mostly yellow on MH80CV |
|
The MH80CV operates with more yellow in the flame than the MH200CV |
Unit is working properly. |
