CLEAN BURN CB-200-CTB, Operator'S Manual

Page: 106 / 148

Coil Tube Boiler Operator's Manual: Models CB-200-CTB, CB-350-CTB, and CB-500-CTB
11-6
PROBLEM POSSIBLE CAUSE POSSIBLE ACTION(S)
Pump will not prime and Pump motor is
running.
1. There is a leak(s) in the suction
line.
2. The pump is not installed so it will
fill with oil during the priming
process.
3. The pump gears are dry.
4. The pump seal is damaged.
5. The ball valve is closed.
6. The canister filter is dirty.
7. The check valve is dirty.
8. The pump is damaged or worn
out.
1. Follow the specifications in
Section 4 to make sure the
suction line is installed properly
and that all fittings are 100%
airtight.
2. Make sure the pump head is filled
with oil prior to starting the pump.
See Section 5.
3. Follow the procedure in Section 5
to fill the oil line and prime the
pump.
4. With the pump not running, wipe
your finger along the bottom of
the cylinder at the pump shaft. If
there is oil at the pump shaft, the
seal is damaged. Replace the
pump, or replace the seal.
NOTE: Some oils will expand as
they warm up. Because there is a
check valve in the suction line, the
expanding oil may build up
pressure and damage the oil seal.
Install a mini-accumulator in the
1/8” port of the canister filter to
prevent the pressure build-up.
5. Open the ball valve on the suction
line.
6. Refer to Section 9 to clean the
canister filter.
7. Refer to Section 9 to clean the
check valve.
8. Replace the pump.