Troubleshooting - Hoover Twin Chamber Service Instructions Manual

Troubleshooting check list - Hoover Bagless Cleaner
The following is a guide to aid in determining the origin of a problem for which these models could conceivably
be brought in for service.
PROBLEM POSSIBLE CAUSE POSSIBLE SOLUTION
A, Motor won't
run
1, Not firmly plugged in.
2. No voltage in customer's wall plug.
3. On/off switch bad.
4. Open in attachment cord.
5. Open circuit in motor.
6. Fan jammed by foreign object.
7. Broken switch control rod.
1. Check power cord for proper connections.
2. Plug into known good voltage source.
3. Replace switch
4. Replace cord.
5. Check motor wiring (armature & field).
6. Remove obstruction,
7. Replace switch control rod.
B. Motor runs
cleaner won't
pickup,
1. Agitator belt broken or worn.
2. Dirt Cup full.
3. Worn agitator brushes.
4, Warped or damaged bottom plate.
5, Blocked air flow system.
6. Nozzle control knob in "cleaning
tools" position.
1. Replace belt.
2, Empty Dirt Cup / Clean HEPA filter.
3. Replace agitator.
4. Replace bottom plate.
5. Clear blockage.
6. Adjust to one of the four carpet cleaning
positions.
C. Motor
intermittent
1. Loose wire connection.
2, Defective on/off switch.
3. Worn carbon brushes.
4. Motor brush hanging in holder.
1, Check all connections.
2. Check and change switch.
3, Replace motor brush holder assembly.
4. Replace motor brush holder assembly.
D. Motor runs
hot
1. Refer to 2 and 5 under Item B
Replace motor.
2. Worn carbon brushes,
3. Shorted or overloaded field coil.
4. Shorted or overloaded armature.
5. Loose wire connection.
6. Motor air vent clogged.
7. Tight motor bearings.
,
The items referred can cause the motor to
run hot because all restrict the air supply.
Field and armature will be generally discolored.
2. Replace motor brush holder assembly.
3. Replace motor.
4. Replace motor.
5. Connections should be tight to prevent
high resistance. Tighten connections or
replace as necessary.
6. Clear air restriction.
7. Check and replace motor if necessary.
E. Cleaner noisy 1. Interference between bottom plate
and agitator,
2. Broken blade(s) on fan.
3. Agitator bearings dry or worn.
4, Warped agitator.
1. Check to see if bottom plate is damaged
or mis - positioned.
2. Replace fan.
3. Grease or replace bearings.
4. Replace agitator.
F. No pickup
using tools
1. Cleaner not set to "cleaning tools"
position.
2. Obstruction in hose.
3. Valve gate not functioning.
1. Check setting.
2. Clear obstruction.
3. Remove bottom plate and check operation
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