Operation & Maintenance w/IPB
G2 Series Decontamination Water Heater
0010
Part Number: 1006375
0010-7
DHS Systems LLC
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Table 1. Operator Troubleshooting – Mechanical (Cont).
ITEM
CONDITION/INDICATION
POSSIBLE MALFUNCTION
CORRECTIVE ACTION
Inspect transformer for proper
operation:
A) 10,000VAC – spring to spring or
¾” spark – spring to spring.
B) 5,000VAC – spring to spring or ½”
spark – spring to chassis.
C) Check electrodes for cracked
ceramic insulators.
D) Set gap of electrodes according to
electrode chart.
12.
(Cont)
No Hot Water.
No heat or flame.
Check for voltage at the solenoid coil,
with Burner switch on:
A) 120VAC = use orange and white
wires.
B) 240VAC = use red and white wires
C) If voltage is present, check for
magnetic flux generated from the
coil.
D) If the voltage to the coil and a
magnetic flux is present, inspect or
replace the fuel nozzle or solenoid.
(NOTE: Not recommended to clean
the fuel nozzles).
E) If voltage is not present, perform
the following checks:
1. Flow Switch – disconnect
wires and check for continuity
across switch
a)
Sufficient flow passing
thru coil = 0 Ohms.
b)
Flow stopped = infinite
Ohms.
(NOTE: If the same reading exists
regardless of flow thru coil, then
the flow switch is considered
defective).
2. High Limit Switch – disconnect
wires and check for continuity
across switch.
a)
If continuity exists, the
switch is considered good.
3. Burner Switch – check voltage
across the burner switch:
a)
Check voltage before the
switch; if no voltage check
supply.
b)
Check voltage after
switch; if no voltage,
replace switch.
