Page 37 of 51
Troubleshooting table (cont’d)
34.
Remove the burner control from the boiler by:
a.
Removing the ignition cable from the electrode and remove the cable from the console
b.
Removing the wiring from the spiral – 1X2-pole plug, 1X8-pole plug and the 230V-plug (right
side of the front). Unscrew the facia (4x) remove the burner control and replace it.
35.
Replace, when bending: take care as bending near the burner plate may give a risk of cracking.
36.
Dry, using a hairdryer as necessary, and check if working. Replace as necessary.
37.
See 36.
38.
See 36. Remove the connection and blow dry, using a hairdryer.
39.
See 36. Remove the connection and blow dry, using a hairdryer.
40.
The plug/ wire connection must point to the outside of the fan and one side should fit into the groove
on the PCB.
41.
Check plugs and fit into one another correctly.
42.
Check cables for possible damage or being trapped, and replace as required.
43.
Check connections, or replace sensor.
44.
Check the seal of the heat exchanger on the flue gas casing, and replace as required, fit a new rotary
lip seal.
45.
Check flow and DHW-Pipes.
46.
Turn the pump switch to position 3.
47.
Check if the sensors are interchanged.
48.
Possibly replace the fuse (must be a reason for the defect); there is no spare fuse present, see
diagram on page 26.
49.
Possibly replace fuse (must be a reason for the defect); there is no spare fuse present, see diagram on
page 26.
50.
Check the mains lead, the wall box for voltage; main fuse
51.
Check the programmed parameters
52.
Check the type of room thermostat and the indication on the sticker of the connector strips on the
boiler.
53.
Change the pulse width program; see parameter manual.
54.
Change the “wake-up” times of the clock thermostat.
55.
Flow is on the left-hand side of the boiler; return on the right-hand side.
56.
Check three-way valve including cables on the valve as well as on the connection strip.
57.
Check the sensor on the calorifier.
60.
It may occur that the 18-pin PCB plug moved up one pin too far; this may cause a fault in the
communication between the wiring and the pins: check both the left and the right-hand side of the
PCB plug to make sure the plugs are placed correctly.
61.
A defect to the gas block usually has one of two causes: the electric coils are defective, or an internal
defect on the gas valve. In either case it would be recommended to replace the entire gas valve.
63.
Use the correct software (please check) for programming. Also, do not exceed the value limits. Try
to reprogram.
64.
Check the supply voltage using a universal meter; if the voltage is correct (should be between 190
and 250 Volt) replace the burner control.
65.
In order to restore the Reset key, take the display from the plastic spacers and try the proper working
again. If negative, replace the display. If the display works outside the boiler, check that the key has
sufficient space under the plastic cover (not being blocked); make room.
If the letter “H” is not blinking, replace the burner control.
66.
Re-adjust the gas valve as per the instructions.
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Страница 5: ...Page 5 of 51 2 TYPICAL SYSTEM LAYOUTS 2 1 Single Boiler Layout ...
Страница 42: ...Page 42 of 51 14 EXPLODED VIEW DIAGRAMS ...
Страница 45: ...Page 45 of 51 14 2 Burner fan gas pipe heat exchanger casing S CB 150 S CB 180 Figure 5 S CB150 S CB 180 ...
Страница 47: ......
Страница 49: ...Page 49 of 51 14 4 Pipes pump S CB 150 180 Figure 6 S CB 150 S CB 180 ...
