AERCO SmartPlate User Manual
Page 50
SmartPlate Installation, Operation & Maintenance Manual
CHAPTER 7 – TROUBLESHOOTING
Page 50 of 138
AERCO International, Inc.
100 Oritani Dr. Blauvelt, NY 10913
OMM-0069_0E
PRI: 11/26/2013
Phone: 800-526-0288
SP-100
Table 7-1. Troubleshooting – Control Valve MXG-461 and Piping Assembly – Cont.
No.
Fault Indication
Probable Cause
Corrective Action
T5
Rapid fluctuations in
heater outlet temperature
which do not follow load
changes
1. Temp. Controller is
not functioning
properly.
1. Refer to Table 7-2 and troubleshoot the
Temp. Controller.
Table 7-1A. Control Valve MXG-461 LED Status Indicators
LED Display
Status
Description
LED green
On continuously
Automatic Mode (normal, no faults)
Flashing
- Mechanically set to MANUAL
- Mechanically set to OFF
- Currently in Auto-Calibrate Mode
LED red
On continuously
- General fault
- General calibration fault
- Microprocessor fault
Flashing
- Faulty 24 VAC supply (Too low)
LED
Off
- No 24 VAC supply
- Electronics Module fault