Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
CH Demand
Attach temperature clamp to boiler flow pipe
CH Temperature Control to MAX
Selector switch in CH & HW mode
CH Temperature Control to MAX
Selector switch in CH & HW mode
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Monitor the flow temperature as the boiler operates for CH.
Does the boiler go to fault code before reaching temperature or does it continue to fire past its maximum flow temperature?
Note:
If the fault is intermittent and does not reoccur (i.e. boiler reaches temperature and shuts down correctly) either repeat the test or click HERE to continue diagnosis through the full model.
Does the boiler go to fault code before reaching temperature or does it continue to fire past its maximum flow temperature?
Note:
If the fault is intermittent and does not reoccur (i.e. boiler reaches temperature and shuts down correctly) either repeat the test or click HERE to continue diagnosis through the full model.
