Section X. TROUBLESHOOTING
occur are listed in table 5-2. Each malfunction stated
This section provides information useful in diagnos-
is followed by a list of probable causes of the trouble.
The corrective action recommended is described op-
ing and correcting unsatisfactory operation or failure
of the immersion heater. Malfunctions which may
posite the probable cause.
1. Heater fails to start.
a. Insufficient preheating of flue.
Repeat preheating. Leave lighter in flue
compartment until heater starts
b. Vent plug closed.
c. Fuel tank empty.
d. Water present in combustion
2. Burner goes out
a. Fuel tank empty.
b. Vent plug closed or clogged.
Open vent plug and be sure it is free
c. Water present in combustion
d. Fuel rate too slow.
e. Flame blown out.
3. Heater smokes
a. Fuel rate too fast.
b. Stack is too short.
Be sure to use at least four sections
gate (17) on the heater body, and secure it with the
5-25. Draft Gate
draft gate supporting screw (16) and the draft gate
screw nut (18).
draft gate supporting screw (16), the draft gate
screw nut (18), and the draft gate (17) from the heat-
b. Inspection. Inspect the draft gate for a warped
(13) from the hinge pin (11).
and distorted condition. Replace the draft gate as
(2) Remove the hinge pin (11), and lift off the
hood (12) from the burner collar (19).
c. Installation. Refer
to figure 5-6, install