Control block
Removing
1. Disconnect the negative battery terminal.
2. Loosen the fixing screws (indicated by arrows) and remove the control unit from the panel.
3. On the back of the control box, release the clips and disconnect the control cables from the control box.
4. Disconnect from the block electric sockets and completely remove the control block.
Installation
Installation is made in sequence, return to removal. Check that the control cables are installed strictly in their places. Check the operation of the control unit before reinstalling the radio receiver.
Control cables
Removing
1. Remove the control cables from the control box.
2. Working through the hole in the panel or under the panel, disconnect the brackets and the corresponding cable from the heater.
Installation
Installation is made in sequence, return to removal. Check that the control cables are correctly placed.
Heater radiator
Attention! When reinstalling the heater core, new O-rings must be used.
Removing
1. Drain the coolant from the cooling system. Alternately pinch the hoses for supplying coolant to the heater radiator near the partition of the engine compartment.
2. Remove the steering column. Unscrew the mounting bolts and remove the panel support hanger for better access to the heater core.
3. Install a suitable container under the heater core. Unscrew the mounting bolt and remove the coolant supply pipes to the radiator. Wait until the rest of the coolant drains into the container.
4. Unscrew the pipe fixing bolts.
5. Replace o-rings (indicated by arrows) at the ends of the pipes.
6. Unscrew the fastening bolts (indicated by arrows) heater core and slide it out of its socket.
Installation
Installation is carried out in the reverse order of removal, taking into account the following points:
- install new O-rings on the pipes;
- slide the heater core into place and connect it to the pipes. Remove clamps from hoses;
- fill the cooling system with coolant.
Heater fan motor
Removing
1. The heater fan motor is located on the right side under the front panel.
2. Disconnect the negative battery terminal. Remove the mounting brackets from the base of the panel on the passenger side. Remove the storage box if necessary.
3. Remove the electrical connector from the engine and remove the wiring harness from the bracket.
4. Unscrew the engine mounting bolts and remove the fan from the casing.
Installation
Installation is made in sequence, return to removal.
Heater fan motor control unit
Removing
1. Remove the heater fan.
2. Remove the wire harness seal from the fan base. Disconnect the connector from the fan and remove the wiring harness.
3. Disconnect the mounting brackets (arrows) and separate the motor from the cover.
4. Loosen the fixing screws (arrows) and remove the engine control unit from the cover.
Installation
Installation is made in sequence, return to removal.