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If a sensor error is detected one of the following
three error codes flash alternately with the
sensor number instead of the temperature
E1 Open circuit
E2 Short circuit
E3 Temperature greater than 99°C
A code of FF indicates the fault location is
empty.
The set point reading mode is normally only
used by the Gledhill engineer to check the
sensor set points are still correct. The set point
alternately fl ashes with S1-S6.
See table opposite for set points.
Note: The S1-S6 reference display does not
correspond with the S1-S6 sensor references
used earlier. These are shown in brackets on
the table opposite.
The two fault code indication modes are again
mainly for use by the Gledhill engineer and can
only be used with a reference table.
The Blocking errors will clear automatically
when the fault is cleared/component changed.
The Locking errors can only be cleared by
resetting the controller.
In each case there are 16 fault locations stored
in date order with C0 being the latest and CF
the fi rst.
The most common fault codes are shown
opposite. Not all appliances use all the error
codes available.
For further assistance please call the Gledhill
Technical Helpline on 08449 310000.
S6 sensor (top)
calling
On peak supply
present
Off peak supply
present
S5 sensor
(bottom) calling
DHW pump on
On peak heater
on
Off peak heater
on
If flashing on its own system has
locked out and needs a reset
If flashing on its own, the system
is running normal
If both flashing indicates a fault but unit is still working
Sensor Control Set Points
S1
Top immersion heater sensor on (S6)
70°C
S2
Top immersion heater sensor off (S6)
78°C
S3
DHW in (S6)
35°C
S4
DHW out (S6)
52°C
S5
Bottom immersion heater sensor on (S6)
75°C
S6
Bottom immersion heater sensor off (S6)
79°C
Sensor Control Set Points
Code
Code
10
Overheat error
45
S1 overheat 1 shorted
30
Phase error
48
I.D. resistor shorted
33
Appliance selection
49
S4 sensor shorted
37
S1 overheat 1 open
50
S5 sensor shorted
40
I.D. resistor open
51
S6 sensor shorted
41
S4 sensor open
52
S2 overheat 2 shorted
42
S5 sensor open
55
Top IM failure
43
S6 sensor open
56
Bottom IM failure
44
S2 overheat 2 open
Any other code displayed should be checked against the full chart.
This is designed for operation by the householder
and the operation is in line with the instructions
on the panel.
OFF
ON
FLASHING
Normal
On-Peak boost active
Fault attention required
PUSH BUTTON
To activate On-Peak boost
ON/OFF SWITCH
Control circuit power
supply
Control panel -
(on the
front of the appliance)
Red LED indicator
Black push button
Green rocker switch -
illuminated when in the
‘ON’ position
SERVICING
F
A
UL
T FINDING