SimTech Maxitrol GV60, Руководство по устранению неисправностей

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SUREFIRE ELECTRONIC IGNITION SYSTEM
S.I.T. PROFLAME 1 TROUBLESHOOTING
SimTech Proflame I
Turn the main burner switch to
ON. Wait 4-10 seconds
1.
Ensure the DFC module is not locked out. Turn switch off then back on
again. If there is a spark it was locked out. Remove all power including
batteries. Leave for 60 seconds, replace power and repeat step 1.
2. Check the 4 x AA batteries are installed correctly. Diagram 3
If correct check battery voltage at the white plastic harness at CN1 on DFC.
While 4.4 vdc is the min voltage the unit can operate it is recommended to
change the batteries at 5 vdc or less. Check for power at the #1 and #3 at CN1
on the DFC. If an AC adapter is used check for power at the #2 and #3 at CN1
on the DFC. The reading should be approx 7 vdc. If No check power supply, if
Yes replace the DFC. Diagram 4
3. Is there is a "dull" spark sound present? If Yes, the electrodes porcelain
insulator or wire may be cracked and grounding out. Replace the electrode if
necessary. Diagram 1 & Diagram 2
4.
Confirm igniter wire is connected to CN3 at the DFC. Diagram 2
5. Disconnect the electrode from CN3 and conduct a continuity test. Place one
lead to the tip of the electrode and the other to the spade connector. If no
continuity replace the el e ctrode. If continuity is found attach a jumper to CN3.
Place the other end of the jumper 1/8" away from ground and switch the unit
on. If there is a spark replace the electrode. If no spark replace the DFC.
Diagram 6
6.
Confirm yellow ground wire is properly connected. DFC (wire harness)
ground wire connects to the valve. The ground connected to CN2 on the DFC
is connected to the chassis (ground lug) then grounded to the pilot area.
Diagram 5
7.
Is a spark visible at CN3 electrode connection at the DFC module and CN2
ground? Confirm connector is firmly seated and the connectors are not bent.
Diagram 1 & Diagram 2
8. Check the On/Off switch for approx 3 vdc at the green and white wires. One
lead to each switch connection which are connected to the green and white
wires. The switch must be in the off position. Diagram 7
If no voltage check green and white wires at DFC harness CN1. Should read
approx 3 vdc present if No check all switch wires and connections. If No voltage
replace the DFC. Diagram 8
**Continue if CPI/IPI switch is inoperable.**
9. Check the continuity of the CPI/IPI switch (Continous Pilot/Intermittent Pilot
Switch). Pilot switch must be in CPI position to show continuity. If No replace
it.
Is there a
spark at the
pilot hood?
1. Confirm Battery voltage (see step 2 above, no spark at pilot hood)
2. Confirm proper grounding (see step 6 above, no spark at pilot hood)
3. Check continuity at the EV1 pilot coil to ground. Should read approx 340
ohms. If no continuity replace the valve. Diagram 11
4.
Confirm the orange wire is properly connected to the EV1 pilot coil
5. Check the voltage at EV1 pilot coil to ground. When switched on there
should be 4 to 6 vdc for 2 seconds then it drops to .5 to 1 vdc. If there is no
voltage replace the DFC module. Diagram 12
6. Check the incoming gas pressure working pressure (inches of water column
"WC) . If gas pressure is good check pilot orifice for blockage and gas flow. If
no blockage and still no flow replace the gas valve.
Did the
pilot light?
NO
YES
NO
Continue to
the next
page
YES