TECHNICAL ISSUES
POSSIBLE CAUSES
SOLUTIONS
Machine will not operate
1. No power
2. Blown fuse or tripped breaker
3. Motor overloads tripped
1. Check power supply
2. Replace fuse; reset breaker
3. Reset overload
Tank will not hold water
1. Drain not closed
2.
Drain overflow not seated or
installed
3. Pump petcock opened
4.
Overflow v-seal dirty/worn
1. Close drain
2.
Reseat or install drain overflow
3. Close pump petcock
4.
Clean/replace v-seal
Tank fills beyond overflow
1.
Obstruction in overflow tube or
drain line
1. Remove obstruction
Water leaks around door
1. Doors not seating
2. Clogged spray pipe
1. Reseat doors
2. Clean spray pipe with brush
Weak or ineffective spray
1. Clogged spray pipe
2. Manifolds not installed properly
3. Obstruction in pump
4. Pump rotation reversed
5. Suction strainer clogged
1. Clean spray pipe with brush pipe
2. Ensure proper placement of upper and
lower pipes
3. Clear obstruction through pump
inspection plate
4. Arrow on pump housing indicates
direction, correct electrically
5. Clean suction strainer
Weak or ineffective final rinse
spray
1. Lime deposits in spray nozzles
2. Low water pressure
3. Clogged line strainer
4. Closed water supply valve
1. Clean or replace nozzles
2. Adjust to 20PSI
3. Remove line strainer and clean
4. Open ball valve
Water hammer
1. Excessive water line pressure
1. Install water hammer valve
Machine vibrates or is noisy
1. Pump rotation reversed
2. Pump bearings worn
1. Arrow on pump housing indicates
direction, correct electrically
2. Replace pump bearings
Final rinse will not shut off
1. Final rinse solenoid valve clogged
2. Diaphragm worn
3. Solenoid valve still powered-up
1. Disassemble valve and clean internal
parts of scale or replace
2. Replace with solenoid valve repair kit
3.
Check final rinse actuating circuit for
proper operation
PART 5 MAINTENANCE & REPAIR PROCEDURES
25
®
TROUBLESHOOTING
Commander 18-6 Technical Manual 2018
www.insingermachine.com 800-344-4802
