Set Appliance State:
Turn Hot Water Tap On
Isolate Mains Power to appliance as per TOPs P4
CH Selector Switch Off
Gas Control Knob in main burner position
CH Selector Switch Off
Gas Control Knob in main burner position
Gas On; Pilot On
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Does the Fan speed change as the Pre-set HW Potentiometer on the Main Control Board is altered?
Note. This Potentiometer is pre-set by the boiler manufacturer and must be adjusted correctly after it is altered or a new component affecting burner gas pressure has been fitted.
Note. This Potentiometer is pre-set by the boiler manufacturer and must be adjusted correctly after it is altered or a new component affecting burner gas pressure has been fitted.
