Error Codes - Lochinvar EcoShield SHW35-245CE Installation, Commissioning & Maintenance Instructions

19.3

ERROR CODES

The user interface screen gives information on Error codes; these can be one of three types:
1. Lockout codes, this may require a user reset and/or investigation by a service engineer
2. Blocking codes, this may require investigation by a service engineer
3. Notification codes, the unit will continue to operate but a service engineer will be required
Error Codes
E00 Invalid lockout
E01 Memory lockout
Fan speed fault
E02
Blown fuse
Flow switch fault
E04
Blown fuse
E05
E06 Auto reset Hi limit
E07 Thermal Fuse open
E08 Ancillary proving switch
E09 Blocked condense drain
Air pressure switch/HEX Limit-contacts
E10
are open
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Description
Flame out of sequence
Reset control module
Switch power on /off
Replace control module
Replace control module
Check flue and air intake length is not too long
Check for obstruction or blockages within flue system
Check wiring connections on fan and main control board
Replace the fan
Replace the main control board
Replace Fuse F2 on main control board see
Check pump operates on call for heat
Check for closed valves or obstructions
Check system full
Replace fuse F3 on main control board see
Verify flame not present, if present replace gas valve
Check 230v supply polarity is correct
Check external wiring for voltage feedback
Check flame rod is clean
Check internal wiring for poor connections
Replace main control board
Check sensor setting is correct
Check appliance has been filled correctly
Check primary pump operation
Check sensor resistance correct see table
Check wiring connections to the fuse on the heat exchanger
Check continuity if open contact Lochinvar ltd
Check ancillary operating correctly
Check wiring to switch
Check for blockages in condense trap/pipework
Check wiring and switch
Check wiring connections to switch
Check for blockage in air inlet
Check hoses to switch for blockages
Inspect burner and clean/replace as necessary
Inspect heat exchanger clean as necessary
Faulty air pressure switch, replace
Corrective Action
13.6
13.6
19.1
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