Despatch LBB2-xxA/B-1 - Manual (Page 51)

LBB Series Oven Owner’s Manual
M AINTENANCE
Version 15 51
Copyright © 2012 by Despatch Industries.
All rights reserved. No part of the contents of this manual may be reproduced, copied or transmitted in any form or by any
means including graphic, electronic, or mechanical methods or photocopying, recording, or information storage and
retrieval systems without the written permission of Despatch Industries, unless for purchaser's personal use.
6.5.3. Replace (Optional) Protocol 3 Controller
Refer to the Protocol 3 Owner’s Manual for instructions on replacing the Protocol 3 Controller.
6.5.4. Replace Heater Unit
Danger!
Do not attempt any service on this oven before opening the
main power disconnect switch.
Tools needed:
 3/8 inch wrench
 One-quarter (1/4) inch socket set
 T20 Torx bit driver
1. Disconnect power.
2. Remove shelves (Figure 22).
3. Remove left and right side ducts
a. Remove screws from each duct.
b. Remove duct from oven.
4. Remove heater cover (located on the top or
bottom of the oven, depending on model).
a. Remove screws from the heater cover.
b. Remove heater cover from the oven.
5. Disconnect heater leads from heater element with
wrench, carefully noting which wires connect to
which terminals.
6. Remove old heater (Figure 23).
a. Remove screws holding the heater frame to
the oven body.
b. Remove heater and discard.
7. Install new heater
a. Secure new heater frame with screws.
b. Attach heater leads to appropriate terminals.
8. Replace heater cover.
9. Replace side ducts.
10. Replace shelves.
Figure 22. Remove Screws to Remove Each Duct.