7.0
Fault Finding
Switch on electricity supply
Set rocker switches to
heating on and manual
Does the fan run?
Does burner fire?
Does the fan start after a
few minutes interval?
Is the heater
running normally?
Does room stat
cut off burner?
Switch to automatic
Does clock switch the
burner on and off?
When the burner is
switched off does the fan
continue to run for a few
minutes before switching off?
Heater is working normally
Is white button on the
fan stat pulled out?
Pull out button
Check fan stat
Check contactor
Check wiring
Is burner motor running
continuously without ignition?
Check photocell solenoid
coil and control box
Is burner lock out light on?
Check oil pump, motor, control
box solenoid coil photocell
and oil supply check wiring
Is amber lamp on the
control panel lit?
Is there power to the burner?
Check motor and control box
Check wiring
Check operation of
stat check wiring
Is there continuity across
the room stat?
Is there continuity across
the overload relay?
Check relay, press reset
button, check wiring
Check 5 amp fuse, wiring
and rocker switches
Does contactor operate?
Check wiring to motor
check motor
Check wiring, check
contactor and overload
relay press reset button
Does the high limit on
the fan stat trip?
Has ducting been
fitted to the heater
Check nozzle combustion
air supply fan stat, fan
speed and supply voltage
Fit the correct motor
and pulleys
Does fan overload trip?
Check for vibration
and heater sizing
Check wiring
Check room stat
Check motor current
Check overload relay
Check supply cable
Check motor wiring
Check for correct motor and
pulleys and supply voltage
Check clock
Check wiring
Check fan stat
Check wiring
Y
Y
N
N
N
Y
N
N
Y
Y
Y
N
N
N
Y
Y
N
N
Y
N
Y
Y
N
Y
N
N
Y
Y
N
N
Y
N
Y
Y
N
Y = YES
N = NO
Page 24
Содержание WAH 100
Страница 16: ...3 7 7 Wiring Diagram for Single Phase Control Panel Page 14...
Страница 17: ...3 7 8 Wiring Schematic for Single Phase Control Panel Page 15...
Страница 19: ...3 7 10 Wiring Schematic for Three Phase Control Panel Page 17...
Страница 30: ...Notes Page 28...