MODINE Unit Heater PAE200

Turn off all electricity to unit

Lower bottom pan to expose burner and manifold

Refer to Figure 1A, Page 2 for guidance

Disconnect pilot tubing at the combination gas control

Disconnect thermocouple lead or ignition cable at the combination gas control and ignition control

Check if the motor requires lubrication

Inspect fan for fit on motor shaft

Check motor bearings for lubrication

Check blower bearings for lubrication

Inspect belt and sheaves for proper alignment

Inspect belt and sheaves for proper adjustment

Cleaning of Unit Heater Components

Ensure the unit is free from dust, dirt, grease, and foreign matter, focusing on the following areas

If air pressure is available, did you use an air hose to blow dirt and foreign matter from within the burner?

Were the main burner orifices checked for blockage due to spider webs or other obstructions?

Avoid using hard, sharp instruments for cleaning burner ports, pilot burner, and main burner orifices.

Clean heat exchanger tubes from bottom with a stiff brush after removing burner (Do not use wire brush).

Check wiring for possible loose connections.