LBB Series Oven Owner’s Manual MAINTENANCE
Version 13 49
Copyright © 2011 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.
6.4.3. Replace (Optional) Protocol Plus Controller
Refer to the Protocol Plus Owner’s Manual for instructions on replacing the Protocol Plus
Controller.
6.4.4. 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 21).
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 22).
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 21. Remove Screws to Remove Each Duct.
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