Specifications

Page 21
mCHP
BOILERMATE
A-CLASS
TECHNICAL SPECIFICATION 3.0
Table 3.9 Controller Error Codes and Descriptions
LOCKING ERRORS BLOCKING ERRORS ERROR TABLE DHW
No Definitions No Definitions No Definitions
0 E
2
PROM READ ERROR 25 REFHI_TOO_LO ERROR 0 T_DHW_OUT_OPEN
1 SAFETY RELAY ERROR 26 REFHI_TOO HI ERROR 1 T_DHW_IN_OPEN
2 E
2
PROM ERROR 27 REFLO_TOO_LO ERROR 2 T_DHW_OUT_SHORTED
3 WRONG E
2
PROM SIGNATURE 28 REFLO_TOO_HI ERROR 3 T_DHW_IN_SHORTED
4 ROM ERROR 29 WD_COMMUNICATION ERROR
5 RAM ERROR 30 PHASE_ERROR
6 20MS ERROR 31 50HZ_ERROR
7 41MS ERROR 32 RESET_BUTTON_ERROR WARNING TABLE
8 STACK ERROR 33 APPLIANCE SELECTION ERROR No Definition
34 SPARE_BLOCK_ERROR_34 0 T_TANK_MIDDLE_OPEN
10 OVERHEAT ERROR 35 SPARE_BLOCK_ERROR_35 1 T_TANK_BOTTOM_OPEN
11 OVERHEAT DIFFERENCE ERROR 36 GP_LOST_ERROR 2 T_TANK_MIDDLE_SHORTED
12 T_MAX LOCK ERROR 37 T_OVERHEAT_/_OPEN 3 T_TANK_BOTTOM_SHORTED
38 OPEN_SENSOR_1 4 EB_FAILURE
39 OPEN_SENSOR_2
40 T_ID_OPEN
41 OPEN_SENSOR_4
17 15MS ERROR 42 OPEN_SENSOR_5
18 FLAG BYTE INTEGRITY ERROR 43 OPEN_SENSOR_6
19 AD_HI_CPL ERROR 44 T_OVERHEAT_2_OPEN
20 AD_LO_CPL ERROR 45 SHORTED_SENSOR
21 REGISTER ERROR 46 SHORTED_SENSOR_1
47 SHORTED-SENSOR_2
23 BOILER RELAY ERROR 48 T_ID_SHORTED
24 EH_RELAY ERROR 49 SHORTED_SENSOR_4
50 SHORTED_SENSOR_5
51 SHORTED_SENSOR_6
52 T_OVERHEAT_2_SHORTED
54 ID_ERROR
55 TOP_IH_FAILURE
56 BOT_IH_FAILURE
Table 3.8 Sensor Sensor control set point readings
Display Sensor
S1 Top/middle store sensor, S6, ON set point
S2 Top/middle store sensor, S6, OFF set point
S3 DHW Inlet sensor, S3, set point
S4 DHW Outlet sensor, S4, set point
S5 Bottom store sensor, S5, ON set point
S6 Bottom store sensor, S5, OFF set point