Additional Faults Without Specific Fault Messages - Watts Aerco Innovation 800 User Manual

Innovation Hot Water Hot Water Boiler User Manual

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. HOT WATER BOILER TROUBLESHOOTING WITH NO FAULT MESSAGE DISPLAYED
OBSERVED INCIDENT
Fluctuating Gas Pressure
Air/Fuel Valve "hunting" at
the 80% Valve Position
OMM-0120_0A
GF-128-I
CHAPTER 7 – TROUBLESHOOTING GUIDE
PROBABLE CAUSES
Gas pressure going into unit is
1.
fluctuating.
IGST and Power Supply Boards
1.
in Control Box are outdated.
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Phone: 800-526-0288
- INTERNATIONAL
CORRECTIVE ACTION
Stabilize gas pressure going into unit. If necessary,
1.
troubleshoot Building Supply Regulator.
Check to ensure that the IGST and Power Supply Boards
1.
are Rev. E or higher.
Page 103 of 174
11/15/2016