Heater Craft 900S Series Shower - Manual (Page 8)

Testing Shower Installation
7
IMPORTANT NOTE: With the 100-S Series, the spray hose should be disconnected after using to prevent
water leakage. With the 300-S, 400-S 800-S, 900-S, 6-C, 6-S Series, the hot and cold valves need to be
closed or turned to off position after using to prevent water leakage.
1. The shower pump should operate with the on/off switch. The shower pump will automatically shut off once
it has built up approximately 40 psi in the outlet hose. if the shower pump does not operate, be sure hot and
cold valves and the spray head are in the open position.
2. Check all hose and fitting connections to be sure there are no water leaks. Check the routing of all hoses
to make sure they are away from moving parts and high heat sources, and secured from sharp objects or
edges and are not kinked or pinched in any way.
3. Adjust the water temperature by turning the corresponding valve for the desired water temperature.
Poor Water Pressure
1. Make sure water source has water.
2. Check on/off switch and condition of fuse to pump.
3. Check the routing of all hoses to be sure they are not kinked or pinched in any way.
4. The shower valve is equipped with screens that may become clogged. To check screens, remove the
hoses from the back side of the valve and inspect for debris. IMPORTANT: Do not remove screens. In many
cases the debris can simply be scraped off or the valve can be back-flushed with water pressure. This can be
accomplished by connecting a garden hose into the center valve with the hot and cold valves in open
position. Once connected securely turn on water pressure and run 'til debris is gone.
5. Remove spray head and check for debris.
6. Remove the hot and cold hoses from their water sources and check for debris.
7. Pump pressure can be tested using an auxiliary hose from input side of the pump into a bucket of water.
Notice: 300S and 400S Series shower units comply with the U.S. Government's test procedure 7.4.4
ASME A112.18.1M-1996 That states "THE SHOWER HEAD VOLUME CONTROLS, WHETHER INTEGRAL OR
SEPARATE, SHALL BE DESIGNED SO THAT THEY CANNOT COMPLETELY SHUT OFF THE WATER TO THE
SHOWER HEAD". In short, the slide button on the side of the wand is designed to be a volume control, not
a positive shut off. The only positive shut off is at the valve assembly itself.
NOTE: If anti-freeze has been drawn into the system, be sure to flush the system completely before using.
1. The shower pump and all hoses should be completely drained of water to prevent damage.
2. RV/MARINE anti-freeze can be drawn into the shower system by removing the hot and cold hoses from
their water sources and then inserting them into a container of anti-freeze. Turn on the shower pump until
anti-freeze sprays out of the shower head.
Questions, please call us For Technical Support (208) 687-4400, www.heatercraft.com
Troubleshooting Shower System
Winterizing Shower System