MODINE Unit Heater HDS450AS0111SBAN

Confirm use of factory-approved service replacement parts only

Record appliance model number, serial number, and company address from the rating plate

Confirm no substitution of parts or controls not approved by the factory

Is the servicing or repairing performed by a qualified service agency?

Ensure no attempt to reuse any mechanical or electrical controllers which have been wet

Confirm replacement of defective controller

Verify personnel are trained and familiar with unit heaters and their controls

Turn off gas at the manual shut-off valve ahead of the combination gas control.

Turn off all electric power to the heater.

Use only factory-approved service replacement parts.

Ensure no substitution of parts or controls not approved by the factory.

Verify that servicing is performed by a qualified service agency.

Replace any mechanical or electrical controllers that have been wet.

Unit and Venting System Inspection

Ensure all servicing is performed by a qualified service agency.

Turn off gas at the manual shut-off valve ahead of the combination gas control.

Turn off all electric power to the heater.

Use only factory-approved service replacement parts.

Do not reuse any mechanical or electrical controllers that have been wet.

Check the gas valves and piping for general cleanliness and tightness.

Acknowledge understanding of using only factory-approved service replacement parts

Acknowledge understanding of the risk of substituting unapproved parts

Ensure the following precautions are taken

Turn off gas at the manual shut-off valve ahead of the combination gas control

Turn off all electric power to the heater

Ensure gas is turned off at the manual shut-off valve ahead of the combination gas control.

Turn off all electric power to the heater.

Check fan for fit on motor shaft.

Verify use of factory-approved service replacement parts only.

Were any mechanical or electrical controllers wet?