Set Appliance State:
Mains Power Off
CH Demand
DHW Demand
Boiler Thermostat Set to Max
Gas On
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Allow the appliance to run and fire
Measure the temperature of the flow pipe and observe the appliance. It should heat until approximately 85°C and then the burner should shut down without a fault code.
Note:
Reducing heating load by turning off some radiators will reduce the time taken for the test.
BOILER SHUTS DOWN BEFORE 85°C REACHED OR FAULT CODE SHOWN
BOILER REACHES MAX TEMPERATURE AND SHUTS DOWN CORRECTLY
BOILER CONTINUES TO HEAT PAST 85°C
Measure the temperature of the flow pipe and observe the appliance. It should heat until approximately 85°C and then the burner should shut down without a fault code.
Note:
Reducing heating load by turning off some radiators will reduce the time taken for the test.
BOILER SHUTS DOWN BEFORE 85°C REACHED OR FAULT CODE SHOWN
BOILER REACHES MAX TEMPERATURE AND SHUTS DOWN CORRECTLY
BOILER CONTINUES TO HEAT PAST 85°C
