Despatch LCC Series User Manual

C244, 320207, REV B LCC_LCD1-16/51 Oven Owner’s Manual
80 of 82
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countries. No part of the contents of this manual may be reproduced, copied or transmitted in any form
or by any means without the written permission from ITW EAE - Despatch, unless for purchaser's
personal use.
Difficulty
Probable Cause
Suggested Remedy
Excessive
vibration
Dirty fan wheel
Clean fan
Unbalanced fan wheel
Replace fan wheel
Oven will not
control at
setpoint
High Limit set too low
Set the High Limit higher.
Temperature controller
malfunction
Replace controller
SCR malfunction
Replace SCR and/or check control output
voltage.
Air friction of
recirculation fan
Open exhaust air vent. Unit will not control
below minimum operating temperature with
vent closed.
Airflow switch
malfunction
Check recirculation and exhaust fan rotation and
pressure switch setting
Heater does
not shut down
until
temperature
reaches the
High Limit
setting
Temperature controller
malfunction
Replace controller.
SCR malfunction
Replace SCR
8.2. Heater Circuit Troubleshooting
Warning!
The following troubleshooting steps must be performed by a
qualified electrician or electrical technician that has been trained
on electrical safety and personal protection equipment
If oven is not heating, first check status of temperature control heater ON/OUT
indicator light on the left button column of the Protocol 3, Figure 29. Light should
be ON for the oven to heat up.

Despatch LCC Series Specifications

General

Brand	Despatch
Model	LCC Series
Category	Oven
Language	English