Despatch Protocol Plus Controller (Heat Only) - Manual (Page 46)

M AINTENANCE & T ROUBLESHOOTING Protocol Plus Owner’s Manual
46 Version 2
Copyright © 2010 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
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Alarm Status Possible Problem Next Step
in rapid succession) memory failure.
Batt (Beep code: three
beeps in rapid succession) Weak or dead battery. Battery
failure. Consult factory
RTC (Beep code: two
beeps in rapid succession) Loss of time in real time clock
circuit. Control memory loss. Reset time in real time clock
page.
O
The lower LCD intermittently display HL Temp. This is not an
error message, but the Hi limit thermocouple temperature
reading.