Replacement Parts List

Ref # Rheem Part # Description RTG-53X

1 RTG20074DV Control Board ●

RTG20006CS Control Board Fuse (5A) ●

RTG20074EE Power Line Fuse (3A) ●

2 RTG20074AF Gas Valve LP ●

RTG20074AG Gas Valve NAT ●

3 RTG20074AU Burner Assembly LP ●

3 RTG20074AV Burner Assembly NAT ●

RTG20074DR Flame Rod Wire - White ●

RTG20074DS Flame Rod Wire - Red ●

4 RTG20074DM Igniter Coil ●

RTG20074DN Flame Rod ●

RTG20074DL Igniter Electrode ●

5 RTG20074DC Fan Assembly ●

RTG20074DF Fan Housing ●

6 RTG20074BC Burner Manifold LP ●

RTG20074BD Burner Manifold NAT ●

7 RTG20074GJ Gas Inlet Connector ¾” LP ●

RTG20074GK Gas Inlet Connector ¾” NAT ●

8 RTG20074BT Water Control Valve ●

RTG20006AR Inlet Thermistor - White ●

RTG20006BB Outlet Thermistor - Black ●

RTG20006BC Heat Exchanger Thermistor - Yellow ●

RTG20006UW Ambient Thermistor - Blue ●

9 RTG20006AL Water Inlet Connector ¾” ●

10 RTG20006AS Inlet Water Filter ●

11 RTG20074CE Hot Outlet Connector ●

RTG20006AV Drain Relief Valve ●

RTG20074EH Gas Shutoff Valve ¾” ●

RTG20074S Mounting Brackets ●

RTG20186 Replacement Screw Kit ●

RTG20206 Replacement O-Ring Kit ●

For parts not listed, please contact Customer Service 1-800-621-5622

Parts for 53X Series (out of production)

for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters | 29