Power Transformer; Thermal Limiter & Microtemp Limiter; Oven Temperature Sensor - Fisher & Paykel Titan AeroTech OD302-B Service Manual

Service Manual 599337A: 302B Series Titan Oven

7.10 Power Transformer

Location: Under the service panel
Removal
1. Follow the general servicing instructions for components around the service panel
area. (refer to Section 7.4)
2. Remove the top panel.
3. Remove the two wires from the power supply terminal block and the two wires from
the power module. (refer to Technical Overview Section 2.25)
Note: Ensure that when removing the wires from the terminal block that they are
refitted to the correct terminals.
4. Remove the four transformer retaining screws and lift out the transformer.
Note: Ensure the replacement transformer has the correct voltage and frequency.
Re-assembly
Refit in reverse manner.
Follow the reassembly procedure. (refer to Section 7.5)
7.11 Thermal Limiter & Microtemp Limiter
Location: thermal limiter in the back panel area, microtemp limiter in the top panel area.
Removal
Note: Refer to Technical Overview 2.28 for thermal limiter and micro limiter locations
and specifications.
1. Follow the servicing instructions for components around the back panel and service
panel areas. (refer to Sections 7.3 & 7.4)
2. Remove the required panels.
3. Remove the wires from the faulty thermal limiter.
4. Remove the retaining and remove the limiter.
Reassembly
1. Refit in reverse manner.
2. Follow the reassembly procedure. (refer to Section 7.5)

7.12 Oven Temperature Sensor

Location: Oven cavity rear top left corner.
Removal
1. Remove the oven fan shroud. (refer to Section 7.19)
2. Remove the two screws securing the sensor to the oven cavity.
3. Pull the sensor wires through hole in the oven cavity wall until the wire connector is
accessible and disconnect the faulty sensor.
Reassembly
1. Push the excess wire back through the hole in the oven cavity.
2. Refit in reverse manner.
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July 2006