AERCO Esteem O&M Manual - Manual (Page 86)

80
GF-125
E.09
Internal Failure
•
Reset the boiler control module and retry ignition sequence and boiler operation. If problem continues, contact AERCO International Technical Support for additional assistance.
E 11
Internal Failure
•
Reset the boiler control module and retry ignition sequence and boiler operation. If problem continues, contact AERCO International Technical Support for additional assistance.
E 12
External Limit Lockout An external limit con- trol at the 24V ter- minal strip, between terminals 13 and 14 is open, breaking the circuit.
Determine reason for the limit to be open and correct condition.
•
If no external limit is used, then Verify connection of the factory applied jumper across ter- minals 13 and 14.
•
If the external limit is closed, check the boiler internal wiring connections and repair or replace if necessary.
•
Remove the external limit and apply a temporary jumper across terminals 13 and 14 and verify operation.
E 13
Internal Failure
•
Reset the boiler control module and retry ignition sequence and boiler operation. If prob- lem continues, contact AERCO International Technical Support for additional assistance.
E 14
Low Voltage Internal Short or Voltage Feedback Short or voltage feedback in the 24V circuit.
Most applications experiencing E-14 have a Honeywell L4000 series aquastat in an Indirect Domestic Water Heater system. If an L4000 aquastat is present, it must be replaced.
•
Isolate the IDWH aquastat from the boiler terminals 11 and 12 using an isolation relay.
•
Replace the aquastat using AERCO International’s PSRKIT22, IDWH Sensor Kit.
•
Check the wiring of the outdoor sensor •
Ensure the wiring is shielded cable.
•
Check for feedback of voltage to terminals 7 and 8, terminals 11 and 12 and terminals 17 and 18 in the boiler enclosure.
•
Remove all field wiring from the boiler’s and reset the boiler control module.
•
Initiate a call for heat external to the boiler and check for voltage on field wiring to termi- nals 7 and 8 (space heating) and terminals 11 and 12 (DHW heating).
•
Check for the line voltage being supplied to the boiler for polarity and for 120
VAC. Ensure
the voltage to the boiler is a dedicated line and there is no drop in voltage at any time.
•
Check moisture on and around the low voltage terminal strip of the boiler. If moisture is present use a hair dryer or some other means to dry the terminals trip.
•
If moisture is present in the boiler, check for possible moisture on the display. If there are signs of moisture or corrosion, resolve the moisture issue and replace the display panel.
Reset the boiler control module and retry ignition sequence and boiler operation. If problem continues, contact AERCO International Technical Support for additional assistance.