Innovation - Edge [i] Installation, Operation, Maintenance Manual
CHAPTER 7
– TROUBLESHOOTING GUIDE
OMM-0143_A
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9/6/2019
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7.2 ADDITIONAL FAULTS WITHOUT SPECIFIC FAULT MESSAGES
Refer to Table 7-2 to troubleshoot faults which may occur without a specific fault message being displayed.
TABLE 7-2. WATER HEATER TROUBLESHOOTING WITH NO FAULT MESSAGE DISPLAYED
OBSERVED INCIDENT
PROBABLE CAUSES
CORRECTIVE ACTION
Fluctuating Gas Pressure
1.
Gas pressure going into unit is
fluctuating.
1.
Stabilize gas pressure going into unit. If necessary,
troubleshoot Building Supply Regulator.
Air/Fuel Valve “hunting” at
the 80% Valve Position
1.
IGST and Power Supply Boards
in
Edge
Controller are outdated.
1.
Check to ensure that the IGST and Power Supply Boards
are Rev. E or higher.
Figure 7.2-1: Innovation Gas Train Component Locations (600N & 800N
P/N 22332 shown)
SSOV
LEAK DETECTION BALL VALVE
TO AIR/FUEL VALVE
LOW GAS
PRESSURE SWITCH
HIGH GAS PRESSURE SWITCH
GAS INLET
MANUAL SHUTOFF VALVE