PAGE 10 of 61 HO-7-1237 & HO-4-1234 OIL-FIRED HEATERS
© SAMUEL JACKSON, INCORPORATED 2003 ALL RIGHTS RESERVED
ERROR AND ALARM LOGGING SYSTEM
The
ERROR and ALARM LOGGING SYSTEM
is a new feature for the Oil-Fired Heaters and
is designed to make troubleshooting easier for both the user and Samuel Jackson service
personnel. This system remembers the last 500 ERRORS and ALARMS, thus showing a
history of past problems. Alphanumeric displays located in the LOCAL PANEL (See Figure
1) and at the optional DIAGNOSTIC MODULE (See Figure 5) show the code number for the
ERROR or ALARM along with the month, day and time of occurrence.
Access to the system is easy and can be done at either display with the burner on or off. Turn
the +/- switch to the right (+) and hold for 5 seconds, then release. The display changes to
show
Error Log #001
which is the most recent ERROR OR ALARM to occur. Use the +/-
switch to increment (+) to earlier logs or decrement (-) to the latest. Log entries are in a first-
in first-out stack, therefore Error Log #500 is replaced when another log event occurs.
Figure 6 shows a typical Error Log display. Error Log #002 is shown with a code of 421 that
occurred on 08/19 (August 19) at 16:49 (4:49 PM). Referring to the DIAGNOSTIC CODES
decal located on the heater cabinet door, Code 421 is an ALARM that air flow went off for a
moment. A more detailed description of the codes are given in the
ERROR and ALARM
EXPLANATIONS
section of the Service Manual. For the Error Log, no distinction is made
between ALARMS
or ERRORS.
Figure 6 - Error Log Display
14-3567-7
To quickly advance through earlier logs, press the RESET button while in the logging
system. Each press of the RESET button will increment the log number to the next 50th
entry.
There are two ways to exit the logging system. Turn the +/- switch to the left (-) and hold for
5 seconds. Also, the display will change back to the normal operation mode screen after two
minutes of inactivity.
The time and date can be set in Step 1 of the Test Program described later in this manual.
