Install Instructions

Table Of Contents
Page 66
LAARS Heating Systems
Appendix B -
ERROR MESSAGES
This table includes a listing of the faults that might be generated by the controller, and displayed on the Operator
Interface. Some of these can be corrected by an installer changing a parameter, while other conditions are more
complicated, and will require a service technician.
The rst column lists the code number that will appear at the beginning of the Lockout or Hold message. The
second column lists a short description of the condition. The third column shows whether the condition will
cause a Hold, or Lockout, or both. The fourth column lists some suggestions for corrective action.
Code Description L or H Procedure
1 Uncongured safety data L 1. New device, complete device conguration and safety
verication.
2. If fault repeats, replace module.
2. Waiting for safety
data verication
L 1. Device in Conguration mode and safety parameters need
verication and a device needs reset to complete verication.
2. Conguration ended without verication, re enter
conguration, verify safety.
parameters and reset device to complete verication.
3. If fault repeats, replace module.
3 Internal fault:
Hardware fault
H
Internal fault
1. Reset module
2. If fault repeats, replace module.
4 Internal fault:
Safety Relay key feedback error
H
5 Internal fault:
Unstable power (DC) output
H
6 Internal fault:
Invalid processor clock
H
7 Internal fault:
Safety relay drive error
H
8 Internal fault:
Zero crossing not detected
H
9 Internal fault:
Flame bias out of range
H
10 Internal fault:
Invalid burner control state
L
11 Internal fault:
Invalid burner control state ag
L
12 Internal fault:
Safety relay drive cap short
H
13 Internal fault:
PII (Pre-Ignition Interlock) shorted to ILK
(Interlock)
H or L
15 Internal fault:
Safety relay test failed due to feedback
ON
L
16 Internal fault:
Safety relay test failed due to safety relay
OFF
L
Table23. PlaceholderforAppendixB