6.7.5
Exploded Diagrams Parts Reference List
Boiler Controls Assembly
(Fig. 6.7.1)
GC Number
Code
Description
111
Q28h Main Control PCB
(Q.10S.4.01.00.0)
111
Q28hP Main Control PCB
(Q.10S.4.15.00.0)
112
Control Panel (Q.10S.4.02.00.0)
E72-401
132
Thermal Fuse (C.08.4.21.00.0)
113
Ignitor Cable (C.17.4.19.00.0)
Waterway, Condensate & Flue Assembly (Fig. 6.7.2)
GC Number
Code
Description
41
Heat Exchanger Assy(Q.10S.0.11.00.0)
42
Burner Kit (Q.10S.0.10.00.0)
64
Burner Head Gasket
(C.10C.2.00.45.0 A)
55
Ignitor Gasket (C.10C.2.00.52.0 A)
43
Ignitor Kit (Q.10S.0.09.00.0)
51
Condensate Trap Kit (Q.10H.0.06.00.0)
48
Flow/Return Thermistor
(Q.10S.2.08.00.0)
49
Flue Sensor (Q.10S.2.09.00.0)
114 045
74
Water Pressure Switch (B.04.2.23.00.0)
47
Flow Overheat Thermostat
(Q.10S.2.07.00.0)
Air - Gas Assembly (Fig. 6.7.3)
GC Number
Code
Description
91
Combustion Blower (Q.10S.3.01.00.1)
163
Q28h Gas Valve - Mixer Air Gas
Assembly (Q.10S.3.04.00.0)
163
Q28hP Gas Valve - Mixer Air Gas
Assembly (Q.10S.3.05.00.0)
Casing Assembly
(Fig. 6.7.4)
GC Number
Code
Description
2
Cabinet Cover Assy (Q.10H.0.04.00.0)
7
Databadge - NG (Q.10H.1.00.03.0)
7
Databadge - LPG (Q.10H.1.00.03.1)
E73-355
16
Combustion Test Plug (B.04.2.00.49.1)
WD440/3/2007
Chapter 6 : Fault Finding
The Keston Qudos 28h & Qudos 28hP Boilers
Installation & Servicing Instructions
Page : 42
