Use and Care Manual

40
110637-01 - 5/20
RRO Installation & Service Manual
NOTICE CHECK TEST PROCEDURE. A very good test
for isolating fuel side problems is to disconnect the
fuel system and with a 24" length of tubing, fire out of
an auxiliary five gallon pail of clean, fresh, warm #2 oil
from another source. If the burner runs successfully
when drawing out of the auxiliary pail then the
problem is isolated to the fuel or fuel lines being used
on the jobsite.
B. OIL PRIMARY CONTROL (Oil Primary)
1. Burner (Oil Primary) will not come on.
a. No power to Oil Primary.
b. Oil Primary is in lockout or restricted mode.
Press reset button for one (1) second to exit
lockout. If control has recycled three times
within the same call for heat, it will enter into
restricted mode. To reset from restricted
mode, refer to Section XI, Paragraph I, No.
2 for details.
c. CAD cell seeing light.
d. CAD assembly defective.
e. Control motor relay is stuck closed (see
note below).
2. Burner (control) will light, then shut down after
a short time, then restart after one (1) minute.
a. CAD cell is defective.
b. Air leaking into oil line causing flame out.
c. Defective nozzle causing flame to be
erratic.
d. Excessive airflow or draft causing flame to
leave burner head.
e. Excessive back pressure causing flame to
be erratic.
3. Control locks out after Trial For Ignition (TFI).
a. No oil to burner.
b. Shorted electrodes.
c. Nozzle clogged.
d. Airflow too high.
e. Ignitor module defective.
f. CAD cell defective.
g. Oil valve stuck open or closed.
Note: The Safety Monitoring Circuit (SMC) is
designed to provide lockout in the event
of a stuck or welded motor relay.
NOTICE If flame is not established within 15 seconds
of oil valve actuation (known as Trial For Ignition [TFI])
lockout will occur. Lockout is indicated by a red LED
solid-on located on the oil primary control.
Hard Lockout will occur if the Oil Primary Control
locks-out three (3) times during a call for heat. This is
indicated by red light reset button solid-on.
13 Troubleshooting (continued)
C. INTELLIGENT OIL BOILER CONTROL
• Cold Start Boiler Control is used on Boilers
without Tankless Heaters.
• Warm Start Boiler Control is used on Boilers
with Tankless Heaters.
1. When a problem occurs with the boiler
operation, the Boiler Control easily provides
specific, valuable information to help resolve
the issue quickly. The display on the Boiler
Control should be the first place to check.
a. If an Error Code "Err" IS NOT displayed on
the Boiler Control: In this circumstance,
Table 10 can be used to determine the
problem and possible causes.
b. If the Boiler Control detects an error it will
flash "Err" (boiler control error) followed
by a number. Use this text and number to
identify the boiler problem and corrective
action in Table 11 below.