HTP 399M - Manual (Page 65)

65
Table 14 – Central Heating Curve – Factory Default
PART 14 – TROUBLESHOOTING
A. ERROR CODE
An error code may occur in the installation of the boiler. This condition may lead to a lock out condition of the controller, which will need
to be manually reset through the
{S4} . These temporary codes will help the installer correct the problem before going into a lock out
condition, which will require a manual reset.
B. BOILER ERROR
1. When an error condition occurs the controller will display an error code on the display module.
2. These error codes and several suggested corrective actions are included in Table 15.
3. In the case of E00, E13, and E14 this error, if uncorrected, will go into a fault condition as described is Paragraph C (Boiler Fault).
C. BOILER FAULT
1. When a fault condition occurs the controller will illuminate the red “fault” indication light and display a fault code in the format
(Example: |F00| ) on the display module.
2. Note the fault code and refer to Table 16 for an explanation of the fault code along with several suggestions for corrective actions.
3. Press the reset key to clear the fault and resume operation. Be sure to observe the operation of the unit to prevent a recurrence of
the fault.
When servicing or replacing any components of this boiler be certain that:

The gas is off.

All electrical power is disconnected.