Set Appliance State:
CH Demand
Appliance CH thermostat set to MAX
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Reset the appliance if required.
(Press reset button once then release)
Allow the central heating system to reach full operating temperature.
Does the system pressure remain stable or does it rise excessively?
(Press reset button once then release)
Allow the central heating system to reach full operating temperature.
Does the system pressure remain stable or does it rise excessively?
