andrews 10/105, Installation And Service Manual

Page: 45 / 60

6.7 How to reset the control from Lockout conditions
Fig. 60
Status Service needed
SELECT Lockout RESET
Error code shown in
water heater display
Press for 2
seconds
Error code shown in
water heater display
If an error code is displayed (except for #4, low flame sense
current), the water heater will be in a ‘lockout condition’ with the
water heater display showing the error code number and
‘Service Needed’ in the status section of the display window.
6.7.1 Resetting error codes in soft lockout
condition
Error codes 62 (maximum number of retries detected) and 63
(maximum number if ignition recycles detected) are ‘Soft
Lockouts’ in which the control can be reset in the ‘User Mode’
by pressing the lower right button under ‘Lockout Reset’ shown
in the lower right portion of the display (Fig. 60). The control will
also go through 3 attempts to relight the burners every hour in
the soft lockout condition.
6.7.2 Resetting error codes in hard lockout
condition
All other error codes will put the water heater into a ‘Hard
Lockout’ condition, in which the water heater will not operate
and cannot be reset in the ‘User Mode’. To reset a hard lockout,
first enter the “Service Mode” described earlier by pressing both
the ‘Temperature Up’ and ‘Select Buttons’ at the same time for 3
seconds. Then press the lower right button under ‘Lockout
Reset’ in the water heater display and hold for 3 seconds.
1. Press for 3 seconds to enter service mode (Fig. 61).
Fig. 61
2. Press for 3 seconds to reset control in service mode
(Fig. 62).
Fig. 62
Warning
The following procedure is for service and installation
personnel only. Resetting lockout conditions without
correcting the malfunction can result in a hazardous
condition.
Status Service needed
SELECT SET
Status Service needed
SELECT Lockout RESET
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