Troubleshooting Guides for the CS aerotherm Rotary Rack Ovens B-700 to B-2200

CS aerotherm Rotary Rack Oven

Adjusting the Air slots

1. When the oven is at room temperature, open the door of the baking area.
2. Using a 10-11 mm spanner loosen the bolts by turning them anti-clockwise near each air slot located inside the oven. Exercise caution to not remove the bolt fully.
3. Adjust the air slot openings by moving them aside.
4. Once done, tighten the bolts using a 10-11 mm spanner by turning them clockwise.
5. This ensures uniform airflow from each air slot.

Replacing the Turntable Bearing

1. Switch off the CS aerotherm Rotary Rack Oven and ensure there is no power.
2. The turntable bearing is located on the turntable inside the oven.
3. Using a 18-19 mm spanner, remove the 4 M10 bolts by turning it anti-clockwise at the centre of the turntable. Keep them aside with the washers safely.
4. Remove the square plate and keep it aside.
5. The bearing can be seen.
6. Remove the bearing and keep it aside.
7. Place the new bearing in place of this and ensure its placed properly.
8. Put the plate back onto the same position as it was removed and ensure the screw holes match.
9. Put the washers and bolts back onto the screw and turn them clockwise to tighten them. Ensure they are put diagonally to to ensure balance.
10. Using the 18-19 mm spanner turn the bolts clockwise to tighten the bolts.
11. Once tightened completely, the oven can be turned on for use.

Replacing the Door Gasket

1. The door gasket needs to be changed once in 3-5 months based on the usage of the oven.
2. Switch off the oven and ensure the inside of the door is at room temperature.
3. Locate the red door gasket alongside the edge of the door.
4. Using a screw driver in one hand, remove the door gasket by using it as lever and pulling the door gasket using the other hand.
5. Remove the entire door gasket from the door.
6. Put the new gasket in place of the gasket that was removed.
7. Press hard to ensure it's stuck uniformly all across the door.
8. Once done, close the door and switch on the oven.
9. Move your hand across the surface of the door to ensure no are leakage.

Replacing The Emergency Switch

To change the switch, the following need to be done:

1. Switch off the Rotary Rack Oven B-700-B-2200 and unplug the machine and ensure there is no power.
2. Open the control panel door.
3. Remove the connections for the Emergency switch using a tester. Please note the connections.
4. Unscrew the switch by loosening the 2 screws on the switch using a tester and remove the emergency switch from the panel by turning it anti-clockwise.# Put the new emergency switch in place of this and rotate it clockwise to ensure it's tight.
5. The ratings for the emergency switch are 10A 415V with a dia of 22mm.
6. Connect the new connections in the same colour coding and place it as removed from.
7. Close the electrical panel cover and lock the same.
8. Plug the Rotary Rack Oven B-700-B-2200 back into the socket and switch it on.

Replacing the MPCB

To change the MPCB, the following need to be done:

1. Switch off the Rotary Rack Oven B-700 to B-2200 and unplug the machine and ensure there is no power.
2. Open the control panel door.
3. Locate the MPCB that is not working or which has tripped.
4. Remove the RYB Cables from the MPCB both from the input and output size by using a tester and rotating the screw in the MPCB where the wires are inserted into the MPCB Please note the location of the cables.
5. Replace the MPCB with the corresponding MPCB in the same location.
6. The MPCB specification for the Rotary Rack Oven B-700 to B-2200 is 0.63A-1A.
7. Once the MPCB is removed, put the new one in place of that.
8. Put back the input and output wires which were removed in point 4 using a tester. Please ensure the wires are matching the same colour coding.
9. Close the electrical panel cover and lock the same.
10. Plug the Rotary Rack Oven B-700 to B-2200 back into the socket and switch it on.

Replacing the Contactor

To change the contactor, the following need to be done:

1. Switch off the Rotary Rack Oven B-700 to B-2200 and unplug the machine and ensure there is no power.
2. Open the control panel by removing the lock.
3. Locate the contactor that has tripped.
4. Untrip the contactor that has tripped by pushing on the green switch.
5. If it continues tripping, the contactor needs to be changed.
6. Remove the RYB Cables from the contactor both from the input and output size by using a tester and rotating the screw in the contactor where the wires are inserted into the contactor Please note the location of the cables.
7. Using a tester remove the screws of the contactor and keep the contactor aside.
8. Replace the conactor with the corresponding contactor in the same location.
9. Once the contactor is removed, put the new one in place of that.
10. Put back the input and output wires which were removed in point 4 using a tester. Please ensure the wires are matching the same colour coding.
11. Close the electrical panel cover and lock the same.
12. Plug the Rotary Rack Oven back into the socket and switch it on.

Replacing the Relay

To change the relay, the following need to be done:

1. Switch off the Rotary Rack Oven B-700 to B-2200 and unplug the machine and ensure there is no power.
2. Open the control panel by removing the lock.
3. Locate the relay that has stopped working.
4. Remove the relay by holding it with 2 fingers and pushing it upwards.
5. The relay will loosen, then pull it out.
6. Replace it with the new relay.
7. The relays used for the Rotary Rack Oven B-700 to B-2200 are of 2 Changeover 300VAC 12A relays.
8. Close the electrical panel cover and lock the same.
9. Plug the Rotary Rack Oven back into the socket and switch it on.