Owner manual

Page 78
BRADFORD WHITE CORP.
27 Internal fault:
Flame rod shorted to ground
detected
H Internal fault
1. Reset module
2. If fault repeats, replace module.
28 Internal fault:
A/D linearity test fails
H Internal fault
1. Reset module
2. If fault repeats, replace module.
29 Internal fault:
Flame bias cannot be set in
range
H Internal fault
1. Reset module
2. If fault repeats, replace module.
30 Internal fault:
Flame bias shorted to adjacent
pin
H Internal fault
1. Reset module
2. If fault repeats, replace module.
31 Internal fault:
SLO electronics unknown error
H Internal fault
1. Reset module
2. If fault repeats, replace module.
32-46 Internal fault:
Safety Key 0 through 14
L Internal fault
1. Reset module
2. If fault repeats, replace module.
47 Flame Rod to ground leakage H Internal fault
1. Reset module
2. If fault repeats, replace module.
48 Static ame (not ickering) H Internal fault
1. Reset module
2. If fault repeats, replace module.
49 24 VAC voltage low/high H 1. Check the module and display connections.
2. Check the module power supply and make sure that frequency,
voltage and VA meet the specications.
50 Modulation fault H Internal sub-system fault.
1. Review alert messages for possible trends.
2. Correct possible problems.
51 Pump fault H Internal sub-system fault.
1. Review alert messages for possible trends.
2. Correct possible problems.
52 Motor tachometer fault H Internal sub-system fault.
1. Review alert messages for possible trends.
2. Correct possible problems.
53 AC input phases reversed L 1. Check the module and display connections.
2. Check the module power supply and make sure that both frequency
and voltage meet the specications.
3. On 24 VAC applications, assure that J4 terminal 10 and J8 terminal
2 are connected together.
59 Internal Fault: Mux pin shorted L Internal Fault.
1. Reset module.
2. If fault repeats, replace module.
61 Anti short cycle H Will not be a lockout fault. Hold Only.
62 Fan speed not proved H Will not be a lockout fault. Hold Only.
Code Description L or H Procedure