Aqua-Hot AHE-100-02S -12 VDC, Owner'S Manual

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Aqua-Hot™ Hydronic Heating System Shop Manual REV-A 03/02
S SS
SSection 6:
ection 6:
ection 6: ection 6:
ection 6: T T
T T
Trrrrroubleshooting oubleshooting
oubleshooting oubleshooting
oubleshooting
Page 18
1. Check "FUEL SOLENOID VALVE"
(#6) (see Figure 13) wires for
continuity. Replace wires if
necessary.
2. Replace "CONTROL UNIT" (#1)
(see Figure 7) if wires indicate
continuity.
3. Retest fuel flow (without Fuel
Nozzle).
4. Install "FUEL NOZZLE" (#9),
see Figure 12.
5. Retest Fuel Nozzle spray pattern
(fine mist of fuel present?).
7. Reattach "DIESEL-BURNER
HEAD" (see Figure 9) and attempt
heater
restart.
1. Turn the Control Switch OFF.
2. Replace "FUEL NOZZLE" (#9),
see Figure 12.
3. Retest Fuel Nozzle spray pattern
(fine mist of fuel present?).
4. Reconnect ignition wires to
"IGNITION ELECTRODES" (#8)
(see Figure 11) or remove jumper
wire.
5. Reattach "DIESEL-BURNER
HEAD" (see Figure 9) and attempt
heater
restart.
NOTE: If an improper fuel spray is still observed (a normal spray
pattern should be observed as a coned-shaped mist) the Diesel-
Burner's "FUEL PUMP" (#14) (see Figure 14) should be
calibrated for the proper fuel pressure setting.
End of Troubleshooting Flow-
Chart.
For additional troubleshooting
information please contact:
Vehicle System's Service Dept.
at 303-857-2901