Troubleshooting and Maintaining the Sloan GEM•2®Flushometer
1. PROBLEM: Valve does not function.
CAUSE: (a.) Control Stop or Main Valve is Closed.
(b.) Handle Assembly is worn.
(c.) Relief Valve is worn and sticking in UP position.
SOLUTION: (a.) Open Control Stop or Main Valve.
(b.) Install Sloan Handle Repair Kit (G-50-A) or replace
Handle.
(c.) Replace Piston.
2. PROBLEM: Insufficient volume of water to adequately siphon fixture.
CAUSE: (a.) Control Stop not open enough.
(b.) Urinal Piston Parts inside a Closet Valve.
(c.) Low Consumption Valve installed on a non-Low
Consumption fixture.
(d.) Inadequate volume or pressure at supply.
SOLUTION: (a.) Adjust Control Stop for desired delivery of water.
(b.) Replace Piston Parts with proper Closet Piston.
(c.) Replace with proper Piston Kit.
(d.) Increase water pressure or supply (flow) to valve. Consult
Factory for assistance.
3. PROBLEM: Length of flush too short (Short Flushing) or Valve
closes off immediately.
CAUSE: (a.) Piston Assembly is not hand-tight.
(b.) Enlarged By-Pass orifice from corrosion or damage.
(c.) Urinal Piston in Closet Flushometer.
(d.) Low Consumption Piston installed in non-Low
Consumption fixture.
(e.) Handle Assembly worn.
SOLUTION: (a.) Screw the assembly hand-tight.
(b.) Install NEW Inside Parts Kit to correct problem and update
Flushometer.
(c.) Replace Piston with proper Closet Piston.
(d.) Replace with proper Piston kit.
(e.) Install Handle Repair Kit (G-50-A).
4. PROBLEM: Length of flush too long (Long Flushing) or fails to
close off.
CAUSE: (a.) Piston is not seating properly or By-pass orifice is
clogged because of foreign material, or By-pass orifice is
clogged by an invisible gelatinous film from “over-treated”
water.
(b.) Line pressure has dropped and is not sufficient to force
Relief Valve to seat.
(c.) 3.5 GPF Closet Piston has been used in a 1 or
1.5 GPF Urinal or on a 1.6 GPF toilet.
(d.) G-21 Main Seat is fouled with debris or is worn.
SOLUTION: (a) Disassemble the working parts and wash thoroughly.
NOTE: Size of the orifice in the By-pass is of utmost
importance for the proper metering of water into the upper
chamber of the valve.
DO NOT enlarge or damage this orifice.
Replace Piston if cleaning does not correct problem.
(b.) Shut off all control stops until pressure has been
restored, then open them again.
(c.) Replace with proper Piston
(d.) Clean or replace G-21 Main Seat.
5. PROBLEM: Leaking at Handle Assembly.
CAUSE: (a.) The B-39 Seal may have deteriorated.
(b.) Handle Gasket has been omitted,
(c.) Valve Handle Bushing is worn.
SOLUTION: (a.) Install new B-39 Seal.
NOTE: The B-39 Seal will easily slide right onto the
Bushing if it is wet.
(b.) Install G-35 Handle Gasket or Sloan Handle Repair Kit
(G-50-A).
(c.) Install Sloan Handle Repair Kit (G-50-A).
CARE AND CLEANING INSTRUCTIONS
DO NOT use abrasive or chemical cleaners to clean Flushometers as they
may dull the luster and attack the chrome or special decorative finishes.
Use ONLY soap and water, then wipe dry with clean cloth or towel.
While cleaning the bathroom tile, the Flushometer should be protected from
any splattering of cleaner. Acids and cleaning fluids can discolor or remove
chrome plating.
If further assistance is required, please contact the Sloan Valve Company
Installation Engineering Dept. at 1-888-SLOAN-14.
SLOAN VALVE COMPANY • 10500 SEYMOUR AVENUE • FRANKLIN PARK, IL 60131
Phone: 1-800-9-VALVE-9 or 1-847-671-4300 • Fax: 1-800-447-8329 or 1-847-671-4380 • http://www.sloanvalve.com
Copyright © 2003 Sloan Valve Company Printed in the U.S.A. Made in the U.S.A. GEM M.G. — Rev. 1a (05/03) Code No. 0816303