Troubleshooting, Possible problems and suggested solutions, Table 2. possible problems and suggested solutions – Despatch RFD1-42 -2E with Protocol 3 User Manual

Page 28

ROUBLESHOOTING

RFD1-42-2E Oven Owner

’s Manual

Version 1

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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.

Troubleshooting

7.1. Possible Problems and Suggested Solutions

Equipment which operates for long periods of time may develop problems. Table 2 lists possible
problems and suggested solutions. If you have a problem not listed and a question about how to
handle it, contact Despatch Industries at our toll free Help Line: 800-473-7373.

Table 2. Possible Problems and Suggested Solutions.

Difficulty

Probable Cause

Suggested Remedy

Failure to heat or
heats up to only
35-50



No power

Burned out heater

Broken or frayed cord

Protocol 3 controller
malfunction

Loose wire connections

Heater relay failure

Door switch failure (if
installed)

Check power source and/or oven and wall
fuses.

Replace heater (see Warranty, Section 8.1).

Replace with new cord.

Replace Protocol 3 controller.

Disconnect power and check connections be-
hind control panel.

Replace circuit board.

Replace door switch.

Slow heat up

Improperly loaded

Low line voltage

Heating element(s) are
burned out

240 volt oven is connected
to a 208V line

Fan motor failure

Reduce load or redistribute load in chamber.

Supply sufficient power and proper
connections. Check for circuit overload.

Replace heater (see Warranty, Section 8.1).

Raise line voltage to a 240 volt line or modify
oven for 208V operation (consult factory).

Replace fan motor.

Frequent heater
element burnout

Harmful fumes generated by
load

Spillage or splattering of
material on heater elements

Overheating oven

Increase vent opening or discontinue process.

Disconnect power and clean oven chamber
and elements.

Check the High Limit.