PAGE 13 of 61 HO-7-1237 & HO-4-1234 OIL-FIRED HEATERS
© SAMUEL JACKSON, INCORPORATED 2003 ALL RIGHTS RESERVED
ERROR AND ALARM EXPLANATIONS
HO-7-1237 & HO-4-1234 OIL-FIRED HEATERS
(FOR SOFTWARE VERSIONS 1.0 AND LATER)
PRELIMINARIES
--
As explained in the
Heater Operation
section, ERRORS will cause the
burner to automatically shut down. ALARMS will permit the burner to continue operation but
warn of conditions which may cause a shutdown if left unattended. In each case, the
DIAGNOSTIC CODE with a brief description of the ERROR or ALARM will be shown on the
display screen (Figure 7) located on the LOCAL PANEL in the heater cabinet and on the optional
20050 DIAGNOSTIC MODULE located at the remote control station.
Figure 7 - ERROR and ALARM Condition Display
14-3567.8
The display will continue to show the ALARM or ERROR until the RESET button is
pressed. Only one ALARM or ERROR condition is displayed at a time. The oldest
unacknowledged ALARM condition is shown even if the burner shuts down due to an
ERROR. Pressing the RESET button will show consecutive ALARM conditions leading
up to the shutdown ERROR.
* ERROR 420
AIR FLOW SWITCH ON MORE THAN 24 HOURS:
The air flow switch (AFS) must be
exercised periodically to insure its proper operation. If the burner and fans have run
continuously for over 24 hours, the burner will
NOT
shut down due to this ERROR,
however if the burner is turned off and an attempt is made to restart it without turning off
the fans, it will not start and will display ERROR 420. The RESET button will
NOT
allow restart. The fans
MUST
be turned off and then back on to allow the burner to start
again. If the operator is aware of the safety reasons for this air flow switch check and
desires to not turn the fans off, a passcode to bypass this ERROR
is described in the footnote for this section.
