Heater Control Valve Repair

HEATER CONTROL VALVE REPAIR PROCEDURE

To repair the RANCO heater control valve, part # *** 18502 A, by replacing the seal in the valve body. By Don Kragenbrink.

NAPA Repair Kit

Step 0 - Assembled Heater Control Valve

Step 1 - Remove Control Cable

Step 2 - Remove Over Travel Spring

Step 4 - Remove Valve Actuating Arm

Step 5 - Temperature Adjusting Screw Removed

Step 5 - Remove Temperature Adjusting Screw

Step 6 - Push Nut Accessiblity

Step 8 - Opening Front End Cap

Step 7 - Separating The Two Body Parts

Step 8 - The Four Front Tabs

Step 8 - The Four Front Tabs Raised

Step 9 - Remove Valve From Valve Body

Step 9 - Remove Hair Pin Clip And Bell Cover

Step 10 - Remove Rust If Present