The wiper motor does not work, the bimetal fuse does not work, and fuse 2 in the fuse box does not blow
Cause of malfunction | Elimination Method |
1. The power wires of the gearmotor are damaged, the wire ends in the connecting blocks are oxidized. | 1. Check wires, replace if damaged. Clean the tips. |
2. Damaged purifier switch. | 2. Replace the three-lever switch. |
3. Hanging of the brushes of the electric motor, severe pollution or burning of the collector. | 3. Check, remove stuck brushes or replace damaged parts; clean the manifold. |
4. Breakage of the wires connecting the brushes of the electric motor with the block of wires. | 4. Check and, if necessary, solder broken wires. |
5. Damaged thermal bimetallic fuse in the gearmotor. | 5. Clean the contacts of the thermal bimetallic fuse or replace it. |
6. Wire break in the motor armature winding. | 6. Replace anchor or gearmotor. |
Wiper motor does not run, bimetal fuse blows, or fuse 2 in fuse box blows
Cause of malfunction | Elimination Method |
1. The levers of the cleaner mechanism are deformed and touch the body parts. | 1. Check, straighten the levers or replace the cleaner. |
2. The brushes are frozen to the glass. | 2. Remove the brushes from the glass, being careful not to damage the rubber band. |
3. A foreign object has entered the cleaner mechanism. | 3. Check, remove the item. |
4. Short circuit in the motor armature winding. | 4. Replace the gearmotor or motor armature. |
Purifier does not work intermittently
Cause of malfunction | Elimination Method |
1. Damaged purifier switch. | 1. Replace the three-lever switch. |
2. Damaged purifier relay: | 2. Do the following: |
- breakage in the relay winding; | - replace the relay; |
- short circuit of wires on a contact rack; | - remove the short circuit; |
- gap between relay breaker contacts. | - Eliminate the gap, if necessary, replace the relay. |
Purifier does not stop intermittently
Cause of malfunction | Elimination Method |
1. The breaker winding in the cleaner relay has burned out. | 1. Replace the purifier relay. |
2. Cam gear motor gear does not bend the spring plate of the limit switch. | 2. Bend the switch plate so that the cam bends the plate. |
3. Contamination of the contacts of the limit switch in the gearmotor. | 3. Strip the contacts of the limit switch. |
4. Contamination of the breaker contacts in the cleaner relay. | 4. Clean the breaker contacts or replace the relay. |
The purifier works intermittently with stops. Brushes do not stop in their original position
Cause of malfunction | Elimination Method |
1. Oxidation or incomplete contact of the limit switch contacts in the gearmotor. | 1. Clean the switch contacts or bend the limit switch plate. |
Cleaner gearmotor works, brushes do not move
Cause of malfunction | Elimination Method |
1. The teeth of the gear motor gear are broken. | 1. Replace gear. |
2. Weak fastening of the crank on the axis of the gear motor gear. | 2. Check, tighten the crank nut, setting it in its final position. |