gledhill GB10 Installation And Servicing Instructions page 32

If the selected boiler ID does not match the ID resistor fitted, the RH digit will display flashing 'E'. The T_ID
values corresponding to the ID resistors are shown on PC serial screen.
If the controller does not sense any further inputs from buttons S1, S2 or S3 for a period of 20s, it will revert
back to normal display.
(b)
Boiler flow temperature setting
The parameter to be set is selected by using buttons S2 or
S3. The display is cycled using these buttons until 'b' (on the
LH digit) and the current maximum boiler flow temperature
setting (e.g. 77) starts to flash alternatively
To change the maximum boiler flow temperature setting, press and hold button S1 until digits stop flashing
and only the current set temperature is displayed.
Change the boiler flow set point using buttons S2 or S3. Press and hold button S1 to confirm the setting until
'b' (on the LH digit) and the current maximum boiler flow temperature setting (e.g. 77) starts to flash
alternatively.
If the controller does not sense any further inputs from buttons S1, S2 or S3 for a period of 20s, it will revert
back to normal display.
8.2. ERROR/FAULT CODES
The errors are divided into two groups; blocking errors which will disappear when error is cleared and the
non volatile locking errors which can only be reset by pressing the reset button.
The locking errors are shown in table 8.5 and these will be indicated with 'C' prior to the error number. The
blocking errors are shown in table 8.6 and these will be indicated with 'E' prior to the error number.
'C' Error
code
1 IGN_ERROR
2 TOO_MANY_FLAME_FAILURES
4 GV_RELAY_ERROR
5 SAFETY_RELAY_ERROR
8 IGNIT_RELAY_ERROR
9 RAM_ERROR
10 E2PROM_ERROR
12 WRONG_EPROM_SIGNATURE
13 STATE_ERROR
14 ROM_ERROR
15 15MS_XRL_ERROR
16 20MS_XRL_ERROR
18 STACK_ERROR
19 FLAME_OUT_TOO_LATE_ERROR
20 FLAME_ERROR_1
32 41MS_ERROR_EROR
33 FAN_ERROR
VER: 02.3 _260505
Supplied By www.heating spares.co Tel. 0161 620 6677
Table 8.5 Lockout error codes
Int
no
1 No flame detected after 3 ignition attempts
24 Three flame losses within one demand for heat
5 Gas valve relay is not opening or closing correctly
6 Safety is not opening or closing correctly
7 Ignition relay is not opening or closing correctly
9 RAM check in processor is not correct
12 E2Prom contents corrupt
10 E2Prom contents does not correspond with main
software
13 Internal software error
14 Internal software error
16 Internal software error
22 Internal software error
19 Internal software error
20 After closing the gas valve the flame was detected
for period longer than 10 seconds
21 Flame detected prior to opening the gas valve
23 Internal software error
8 Fan does not run on correct speed
Table 8.4. ID Data of boiler models
Model Boiler ID
GB10 B1
GB15 B2
GB20 B3
GB25 B4
GB30 B5
Description
ID resistor
1K, (T_ID=100)
1K5, (T_ID=66)
2K2, (T_ID=73)
3K3, (T_ID=61)
4K7, (T_ID=51)
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