Table 17-1.
Fuel-Burning Winterization Kit Troubleshooting Chart
Malfunction
Probable cause
Corrective action
1. Press-to-test lamp
a. Faulty circuit breaker.
a. Replace circuit breaker.
does not go on.
(para 17-5.)
b. Open circuit.
b. Isolate and repair.
2. Turn switch on,
a. Faulty circuit
a. Replace circuit breaker.
nothing happens.
breaker open.
(para 17-5.)
b. Open circuit.
b. Isolate and repair.
3. Switch on, will not
a. Burned out igniter.
a. Visually inspect and test.
ignite,
Blower
Orifice clogged.
Clean orifice (para (17-7.)
operates.
b. Pressure regulator
b. Check regulator valve.
solenoid closed.
(para 17-70)
c. Fuel pump.
c. Check pump separately.
4. Fan runs all the
a. Broken quartz rod.
a. Replace rod.
time with switch
off.
b. Flame switch out of
b. Readjust.
adjustment.
c.
Wiring connections
c. Correct connections.
incorrect.
5. Heater starts, then
a. Faulty micro-switch.
a. Replace switch. (para 17-5.)
goes out.
b. Overheats, trips
b. Check fuel rate (too high).
limit switch.
Check for closed ducts or
restrictions. Check
blower speed.
6. Circuit breaker
Short circuit.
Disconnect basic components, one at a time,
pops open.
to isolate short - then check wiring. Replace
shorted/defective components or wire.
7. Failure to shut off.
a. Fuel regulator valve
a. Replace valve.
stuck open.
b. Flame switch stuck
b. Adjust or replace.
open.
8. Surging combustion.
a. Fuel regulator operating
a. Check fuel rate and replace valve
erratically.
if necessary.
b. Fuel pump operating
b. Replace pump.
erratically.
9. Coolant pump fails
Faulty coolant pump. (See
Repair or replace pump. (See malfunction no.
to recirculate
malfunction no. 4 of
of table 17-3.)
liquid.
table 17-3)
10. Coolant pump turns
Pump passages or blade slots
Remove pump from motor; disassemble and
over but fails to
plugged with foreign
clean. Clean filter.
deliver fluid.
matter.
11. Erratic or reduced
a. Air leak.
a. Check tubing connections for leaks.
output.
b. Reduced voltage.
b. Check voltage input to motor.
17-2
